{"title":"Passive Components","description":"\u003cp\u003eThe fundamentals every circuit needs. Browse resistors, capacitors, diodes, transistors, LEDs, and value packs — the passive parts that shape and protect every signal you build.\u003c\/p\u003e\u003cp\u003eStocked individually and in handy assortment kits, genuine and ready to use, with fast shipping across India, Cash on Delivery, and a GST invoice. Keep your bench supplied.\u003c\/p\u003e","products":[{"product_id":"led-variety-pack-50-pcs-3mm-5mm-mixed-colours","title":"LED Variety Pack (50 pcs) - 3mm \u0026 5mm Mixed Colours","description":"\u003ch1\u003eLED Variety Pack — 50 Mixed 3mm \u0026amp; 5mm LEDs\u003c\/h1\u003e\n\n\u003cp\u003eThis LED variety pack contains 50 light-emitting diodes in an assortment of 3mm and 5mm sizesand five distinct colours—red, green, yellow, blue, and white. Ideal for breadboard prototypes, Arduino outputs, and custom indicator panels, each LED delivers consistent brightness and a wide viewing angle. With this mix, you have a well-rounded staple for any electronics workbench.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eLED Sizes\u003c\/td\u003e\n\u003ctd\u003e3mm and 5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eColour Mix\u003c\/td\u003e\n\u003ctd\u003eRed, Green, Yellow, Blue, White (10 each approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eLens Type\u003c\/td\u003e\n\u003ctd\u003eClear\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eForward Voltage\u003c\/td\u003e\n\u003ctd\u003e1.8–2.2 V (R, Y, G); 3.0–3.4 V (B, W)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMax Forward Current\u003c\/td\u003e\n\u003ctd\u003e20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eViewing Angle\u003c\/td\u003e\n\u003ctd\u003e60°\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eFirst Arduino blink exercise with multiple colour outputs\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-traffic-light-simulator\"\u003eTraffic light simulator using red, yellow, and green\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003eLow-battery indicators or logic-state monitors\u003c\/li\u003e\n  \u003cli\u003eBacklighting for decorative panels or custom displays\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThese standard through-hole LEDs work with any 3.3V or 5V microcontroller platform—Arduino Uno, Nano, ESP32, Raspberry Pi Pico, or 555 timer circuits. Always add a current-limiting resistor (typically 100–330 Ω) between the anode and the I\/O pin to prevent damage.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eSolder the longer lead (anode) to the GPIO via a resistor and the shorter lead (cathode) to ground. For 5V systems, use a 220 Ω resistor for red, yellow, and green, and 100 Ω for blue and white; for 3.3V, reduce to 100 Ω and 50 Ω respectively to maintain safe brightness.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino?\u003c\/summary\u003e\u003cp\u003eYes, each LED functions with any Arduino digital pin when using a 220-ohm resistor for red, yellow, or green, and a 100-ohm resistor for blue or white on a 5V board.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat resistors should I use?\u003c\/summary\u003e\u003cp\u003eFor 5V circuits, use 220 Ω for red\/yellow\/green and 100 Ω for blue\/white. For 3.3V, use 100 Ω and 50 Ω respectively. This keeps current near 20 mA for safe, bright output.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eAre the LEDs pre-sorted by colour?\u003c\/summary\u003e\u003cp\u003eThe pack includes a mix of all five colours and both sizes, but they are not individually bagged or labeled. You can visually identify each colour by looking at the clear lens under light.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53445039948141,"sku":"CDN-0843","price":60.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_95ed1117-2882-4461-b9a1-c39b7eb9f892.jpg?v=1781513024"},{"product_id":"10f-supercapacitor-27v-ultracapacitor-for-backup-power","title":"10F Supercapacitor - 2.7V Ultracapacitor for Backup Power","description":"\u003ch1\u003e10F Supercapacitor — 2.7V Ultracapacitor for Reliable Energy Storage\u003c\/h1\u003e\u003cp\u003eThis 10 Farad supercapacitor offers massive capacitance in a compact cylindrical package for short-term energy storage. Use it for real-time clock backup, solar-powered circuits, or to buffer peak current in battery-less designs. Its low internal resistance ensures efficient charge\/discharge cycles, making it a durable alternative to small batteries in many applications.\u003c\/p\u003e\u003ch2\u003eKey Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacitance\u003c\/td\u003e\n\u003ctd\u003e10 Farads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Voltage\u003c\/td\u003e\n\u003ctd\u003e2.7 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eESR\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;30 mΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLeakage Current\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.5 mA after 72h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e10 mm × 30 mm (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRTC or SRAM power backup for microcontrollers\u003c\/li\u003e\n\u003cli\u003eSolar garden light or IoT sensor node power buffer\u003c\/li\u003e\n\u003cli\u003eMotor driver surge current supply to protect lithium cells\u003c\/li\u003e\n\u003cli\u003eDIY spot welder capacitor bank (use appropriate balancing circuit)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cp\u003eThis 2.7V supercapacitor interfaces with any circuit that stays below its maximum voltage. It pairs with low-voltage boards like ESP8266 or Arduino (with a regulator) for backup power, or with boost converters to step up voltage. For higher voltage systems, place multiple units in series with balancing resistors.\u003c\/p\u003e\u003ch2\u003eWiring Notes\u003c\/h2\u003e\u003cp\u003eObserve polarity: the longer lead is positive. Never apply reverse voltage. When charging from a constant current source, keep current below 500 mA unless specified. For series banks, add a voltage divider or active balancing IC to prevent overvoltage on individual cells.\u003c\/p\u003e\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino Uno?\u003c\/summary\u003e\u003cp\u003eYes, but its 2.7V maximum is below the 5V logic level. Use a boost converter (e.g., TP4056 with BMS) to charge from a 5V USB port and power the Arduino's 3.3V rail.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow do I charge this supercapacitor safely?\u003c\/summary\u003e\u003cp\u003eUse a dedicated supercapacitor charger IC (like the BQ24210) or a simple series resistor. For a 5V source, start with a 10Ω resistor and monitor voltage until it reaches 2.5V, then disconnect.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I replace a coin cell with this capacitor?\u003c\/summary\u003e\u003cp\u003eAbsolutely. It provides far more cycles than a CR2032 and can be recharged thousands of times. Just ensure your circuit can run down to 2.7V and you add a charging path.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53445059936621,"sku":"CDN-0884","price":350.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_23d9bc1a-416e-4b66-bb45-54c024d199ca.jpg?v=1781513106"},{"product_id":"1000-µf-63v-electrolytic-capacitor-cdn-0903","title":"1000 µF 6.3V Electrolytic Capacitor - CDN-0903","description":"\u003ch1\u003e1000 µF 6.3V Electrolytic Capacitor\u003c\/h1\u003e\u003cp\u003eThis 1000 µF 6.3V aluminum electrolytic capacitor is a radial-leaded component designed for low-voltage DC circuits. It provides bulk capacitance for power supply filtering, voltage smoothing, and decoupling applications. With a compact size and reliable performance, it’s essential for any DIY electronics project.\u003c\/p\u003e\u003ch2\u003eKey Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacitance\u003c\/td\u003e\n\u003ctd\u003e1000 µF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Rating\u003c\/td\u003e\n\u003ctd\u003e6.3V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTolerance\u003c\/td\u003e\n\u003ctd\u003e±20%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e10 x 12.5 mm (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLead Spacing\u003c\/td\u003e\n\u003ctd\u003e5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSmoothing capacitor for 5V or 3.3V power supply rails\u003c\/li\u003e\n\u003cli\u003eDecoupling capacitor to reduce noise on breadboard circuits\u003c\/li\u003e\n\u003cli\u003eTimer circuit using NE555 for LED flasher or tone generator\u003c\/li\u003e\n\u003cli\u003eFilter capacitor in low-pass filter for audio signals\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cp\u003eThis 6.3V capacitor is suitable for low-voltage circuits using microcontrollers like Arduino Uno, Raspberry Pi Pico, and ESP32. It pairs well with voltage regulators like LM7805 or AMS1117-3.3 for output filtering. Ensure the circuit voltage never exceeds 6.3V to avoid damage.\u003c\/p\u003e\u003ch2\u003eWiring Notes\u003c\/h2\u003e\u003cp\u003eThe capacitor is polarized: the longer lead is positive (+), usually marked with a stripe on the body. Solder with correct orientation—reverse voltage can cause venting or explosion. Use a current-limiting resistor if charging a large capacitor bank.\u003c\/p\u003e\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino?\u003c\/summary\u003e\u003cp\u003eYes, this capacitor works with any Arduino board for power supply smoothing. Connect it between 5V and GND to reduce voltage ripple.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I use this for a high-current LED driver?\u003c\/summary\u003e\u003cp\u003eThis capacitor is rated for 6.3V, so ensure your circuit voltage does not exceed that. For higher voltages, choose a capacitor with appropriate voltage rating.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is the shelf life?\u003c\/summary\u003e\u003cp\u003eAluminum electrolytic capacitors have a finite shelf life due to electrolyte drying. We recommend using within 2 years of purchase for best performance.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53445070061933,"sku":"CDN-0903","price":25.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_b916e92f-aadb-43df-b72b-21a3335ba3bb.jpg?v=1781513141"},{"product_id":"100f-25v-supercapacitor-high-power-energy-storage","title":"100F 25V Supercapacitor – High Power Energy Storage","description":"\u003ch1\u003e100F 25V Supercapacitor – High-Capacity Energy Storage\u003c\/h1\u003e\n\n\u003cp\u003eA 100F 25V supercapacitor delivers massive capacitance in a compact form, ideal for applications needing rapid charge and discharge cycles. Use it for real-time clock backup, peak power assistance in motor drives, or short-term energy storage in solar-powered systems. Its low internal resistance ensures efficient energy delivery.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCapacitance\u003c\/td\u003e\n\u003ctd\u003e100 F\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eRated Voltage\u003c\/td\u003e\n\u003ctd\u003e25 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTolerance\u003c\/td\u003e\n\u003ctd\u003e±20%\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +70°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eLife Cycles\u003c\/td\u003e\n\u003ctd\u003e500,000 cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTerminal Type\u003c\/td\u003e\n\u003ctd\u003eRadial leads (solderable)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eRTC battery backup for Arduino or ESP32 projects\u003c\/li\u003e\n  \u003cli\u003ePeak current booster for motor or servo startups\u003c\/li\u003e\n  \u003cli\u003eSolar garden light energy storage\u003c\/li\u003e\n  \u003cli\u003eCamera flash capacitor replacement (check voltage)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis supercapacitor works with any DC circuit within its 25V rating. Common pairings include 3.3V and 5V microcontrollers like Arduino Uno, ESP8266, and Raspberry Pi through a charging circuit. For series connections above 25V, use balancing resistors to prevent overvoltage on individual cells.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eCharge through a current-limiting resistor (e.g., 10–100 ohms) to avoid inrush current. Observe polarity if the capacitor is marked; reverse connection can damage it. Keep wire lengths short to minimize ESR impact.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino?\u003c\/summary\u003e\u003cp\u003eYes, it can be used as a backup power source for Arduino's RTC or to stabilize the 5V rail, but requires a charging circuit to limit current from the Arduino's output.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I use this for starting motors?\u003c\/summary\u003e\u003cp\u003eAbsolutely. The 100F capacitance provides high current bursts, ideal for overcoming motor startup torque. Ensure the motor voltage does not exceed 25V.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I charge it safely?\u003c\/summary\u003e\u003cp\u003eUse a constant-current source or a resistor in series with your power supply. Never exceed 25V. For fast charging, monitor the voltage and disconnect when full.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53445074616685,"sku":"CDN-0917","price":1770.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/download_a8b7b8d4-7f3f-49fe-96a6-cbc1444436c1.jpg?v=1781522062"},{"product_id":"1n5819-schottky-diode-1a-40v-fast-switching-for-power-supplies","title":"1N5819 Schottky Diode 1A 40V – Fast Switching for Power Supplies","description":"\u003ch1\u003e1N5819 Schottky Diode – 1A 40V Fast Rectifier\u003c\/h1\u003e\u003cp\u003eThe 1N5819 is a Schottky barrier rectifier diode with an average forward current of 1A and a peak repetitive reverse voltage of 40V. It is widely used for reverse polarity protection, DC-DC converters, and low-voltage rectification thanks to its low forward voltage drop and fast switching speed. Its high efficiency makes it a go-to component for power-sensitive applications.\u003c\/p\u003e\u003ch2\u003eKey Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak Repetitive Reverse Voltage (VRRM)\u003c\/td\u003e\n\u003ctd\u003e40V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAverage Forward Current (IF(AV))\u003c\/td\u003e\n\u003ctd\u003e1A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForward Voltage Drop (VF) at 1A\u003c\/td\u003e\n\u003ctd\u003e0.6V typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReverse Leakage Current (IR) at 25°C\u003c\/td\u003e\n\u003ctd\u003e1mA max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJunction Capacitance\u003c\/td\u003e\n\u003ctd\u003e110pF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eDO-41 axial lead\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReverse polarity protection circuit for battery-powered devices\u003c\/li\u003e\n\u003cli\u003eStep-down buck converter for 5V or 3.3V supplies\u003c\/li\u003e\n\u003cli\u003eBypass diode for solar panels to prevent reverse current\u003c\/li\u003e\n\u003cli\u003eFlyback diode for relays and inductive loads\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cp\u003eThe 1N5819 works with all common microcontrollers and boards operating at 3.3V or 5V logic, such as Arduino Uno, ESP32, and Raspberry Pi. It pairs well with voltage regulators like the LM7805 or MP1584 in DC-DC converter designs and is often used alongside MOSFETs for efficient power switching.\u003c\/p\u003e\u003ch2\u003eWiring Notes\u003c\/h2\u003e\u003cp\u003eFor reverse polarity protection, connect the anode to positive input and cathode to the load. The low forward voltage drop ensures minimal power loss compared to standard silicon diodes. Always ensure current stays below 1A and add a heat sink if operating near the limit.\u003c\/p\u003e\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino?\u003c\/summary\u003e\u003cp\u003eYes, the 1N5819 works with 5V Arduino boards. Use it for reverse polarity protection by placing it in series with the power input; the low forward voltage drop minimizes power loss.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I use this for a 12V circuit?\u003c\/summary\u003e\u003cp\u003eThe 1N5819 is rated for up to 40V, so it is suitable for 12V circuits. Ensure the current does not exceed 1A average forward current.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is the difference between 1N5819 and 1N4007?\u003c\/summary\u003e\u003cp\u003eThe 1N5819 is a Schottky diode with a lower forward voltage drop (around 0.6V at 1A) and faster switching, while the 1N4007 is a standard silicon rectifier with a higher drop (~1V) and slower recovery. Choose the 1N5819 for efficiency in low-voltage applications.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53445077270893,"sku":"CDN-0921","price":25.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/download_7308e998-e7b5-45e6-9f8d-2f6ad0264b9f.jpg?v=1781522447"},{"product_id":"120-resistors-14w-carbon-film-assortment-kit","title":"120 Resistors – 1\/4W Carbon Film Assortment Kit","description":"\u003ch1\u003e120 Resistors – 1\/4W Carbon Film Assortment Kit\u003c\/h1\u003e\n\n\u003cp\u003eThis 120-piece resistor kit includes 12 commonly used values, each rated at 1\/4 watt with 5% tolerance. Ideal for prototyping, Arduino projects, repairs, and educational labs. Carbon film construction ensures stable and low-noise performance.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePiece Count\u003c\/td\u003e\n\u003ctd\u003e120 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eResistor Values\u003c\/td\u003e\n\u003ctd\u003e10Ω, 100Ω, 220Ω, 330Ω, 1kΩ, 2.2kΩ, 4.7kΩ, 10kΩ, 22kΩ, 47kΩ, 100kΩ, 1MΩ (10 each)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePower Rating\u003c\/td\u003e\n\u003ctd\u003e1\/4W\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTolerance\u003c\/td\u003e\n\u003ctd\u003e±5%\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eCarbon film\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePackaging\u003c\/td\u003e\n\u003ctd\u003eThrough-hole axial lead\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eLED current-limiting circuits for all standard indicator lights\u003c\/li\u003e\n  \u003cli\u003ePull-up and pull-down networks for buttons and sensors\u003c\/li\u003e\n  \u003cli\u003eVoltage dividers for analog sensor interfacing\u003c\/li\u003e\n  \u003cli\u003eBasic Arduino projects like light meters, temperature alarms, and motor drivers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eCompatible with all breadboard-friendly microcontrollers like Arduino Uno, Nano, Mega, ESP8266, ESP32, and Raspberry Pi. Works safely with 3.3V and 5V logic levels when used for pull-ups, current limiting, or voltage dividers.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eConnect resistors with care to avoid exceeding the 1\/4W power rating. For pull-up configurations, a common 10kΩ value works well with most digital inputs. Always double-check the color bands before soldering.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino?\u003c\/summary\u003e\u003cp\u003eYes, these through-hole resistors fit breadboards and work with Arduino's 5V logic. Use values like 220Ω for LED current limiting.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat if I receive damaged or missing resistors?\u003c\/summary\u003e\u003cp\u003eWe offer 7-day replacement for any defective or missing components. Contact our support with your order details.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I use these for high-current applications?\u003c\/summary\u003e\u003cp\u003eThese are rated at 1\/4W, so ensure current does not exceed 50mA for 100Ω or equivalent power limit. For higher loads, consider wire-wound resistors.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53445081858413,"sku":"CDN-0943","price":120.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_482aa5e5-cbcc-443a-b82e-c820c53f1e4c.jpg?v=1781513197"},{"product_id":"100x-10ω-14w-resistors-for-mosfet-gate-drive-compoden","title":"100x 10Ω 1\/4W Resistors for MOSFET Gate Drive - Compoden","description":"\u003ch1\u003e10Ω 1\/4W Gate Resistors (100 Pieces)\u003c\/h1\u003e\u003cp\u003eThis pack contains 100 through-hole resistors with a resistance of 10Ω and a power rating of 1\/4W. Commonly used in MOSFET gate driving circuits, these resistors help control switching speed and reduce ringing. They are essential for any power electronics project requiring reliable MOSFET switching. With 100 pieces per pack, you'll have plenty for prototyping and production runs.\u003c\/p\u003e\u003ch2\u003eKey Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eResistance\u003c\/td\u003e\n\u003ctd\u003e10Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Rating\u003c\/td\u003e\n\u003ctd\u003e1\/4W (250mW)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTolerance\u003c\/td\u003e\n\u003ctd\u003e±5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eAxial Through-Hole\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e100 Pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Coefficient\u003c\/td\u003e\n\u003ctd\u003e±350 ppm\/°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMOSFET gate driver circuit to minimize ringing and overshoot\u003c\/li\u003e\n\u003cli\u003eH-bridge motor driver for robotics and automation projects\u003c\/li\u003e\n\u003cli\u003eProtection circuit for microcontroller pins driving high-current MOSFETs\u003c\/li\u003e\n\u003cli\u003eSnubber network for suppressing voltage spikes in inductive load switching\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cp\u003eThese resistors work with any standard breadboard or PCB. Suitable for 3.3V and 5V logic level MOSFETs like the IRLZ44N or IRFZ44N. They can be paired with Arduino, ESP32, Raspberry Pi, or any common microcontroller platform.\u003c\/p\u003e\u003ch2\u003eWiring Notes\u003c\/h2\u003e\u003cp\u003ePlace the resistor as close as possible to the MOSFET gate pin to minimize trace inductance. For most gate drive applications, a value between 10Ω and 100Ω is recommended; 10Ω provides fast switching with some ringing control.\u003c\/p\u003e\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino?\u003c\/summary\u003e\u003cp\u003eYes, these 10Ω resistors can be connected between an Arduino digital output pin and a MOSFET gate to limit inrush current and protect the pin.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is the power rating?\u003c\/summary\u003e\u003cp\u003eEach resistor is rated for 1\/4 watt (250mW), suitable for low-power gate drive signals where gate current is minimal.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I use these for other purposes like LED current limiting?\u003c\/summary\u003e\u003cp\u003eWhile they can be used for current limiting, 10Ω is very low and may not be suitable for standard LEDs without additional resistors. Primarily designed for gate drive applications.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53445083169133,"sku":"CDN-0950","price":45.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/download_869efa94-5548-4a51-bb0e-12886824bded.jpg?v=1781590528"},{"product_id":"diode-variety-pack-1n4007-1n4148-1n5819-zener-assortment","title":"Diode Variety Pack – 1N4007, 1N4148, 1N5819 \u0026 Zener Assortment","description":"\u003ch1\u003eDiode Variety Pack\u003c\/h1\u003e\n\u003cp\u003eA curated set of essential through-hole diodes covering rectification, signal switching, low-voltage drop, and voltage reference applications. This pack provides the most commonly used diodes for breadboarding, repairs, and prototype builds in one convenient bundle.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1N4007 Rectifier\u003c\/td\u003e\n\u003ctd\u003e1000 V peak reverse, 1 A forward, DO-41\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1N4148 Signal\u003c\/td\u003e\n\u003ctd\u003e100 V peak reverse, 200 mA forward, DO-35\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1N5819 Schottky\u003c\/td\u003e\n\u003ctd\u003e40 V peak reverse, 1 A forward, DO-41\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eZener Diodes (mixed)\u003c\/td\u003e\n\u003ctd\u003e3.3 V, 5.1 V, 12 V, 15 V typical, 500 mW, DO-35\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eFull- or half-wave bridge rectifier for AC-to-DC power supplies\u003c\/li\u003e\n  \u003cli\u003eSignal clipping and input protection circuits using 1N4148\u003c\/li\u003e\n  \u003cli\u003eReverse polarity protection with low forward-drop 1N5819\u003c\/li\u003e\n  \u003cli\u003eShunt voltage regulators or reference sources with Zener diodes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eAll diodes use standard 2.54 mm lead spacing and fit any breadboard or perfboard. They work directly with 3.3 V and 5 V platforms such as Arduino, Raspberry Pi, ESP32, and common discrete transistor circuits. Pair with filter capacitors after rectification or add series resistors for Zener biasing.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eObserve cathode polarity—the band marks the cathode end. 1N4007 handles up to 1 A without a heatsink in free air. Zener diodes always require a current-limiting resistor; typical values range from 220 Ω to 1 kΩ depending on supply voltage. Keep Schottky reverse voltage within 40 V to avoid breakdown.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino projects?\u003c\/summary\u003e\u003cp\u003eYes, all diodes are through-hole and widely used in Arduino shields, power modules, and sensor interfaces. They fit standard 5 V logic and can handle the current levels typical in those builds.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat Zener voltages are included?\u003c\/summary\u003e\u003cp\u003eThe pack contains a mix of common values: typically 3.3 V, 5.1 V, 12 V, and 15 V. The exact distribution may vary, but you will receive several different voltages suitable for regulation and clamping.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I use these as blocking diodes for a solar panel?\u003c\/summary\u003e\u003cp\u003eThe 1N5819 Schottky diode is excellent for this purpose. Its low forward voltage drop (around 0.3 V at 1 A) minimizes power loss while preventing reverse current flow from battery to panel at night.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53445136941421,"sku":"CDN-0844","price":85.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_b2228697-bfa0-424b-ae85-c388ab681b6f.jpg?v=1781513518"},{"product_id":"5mm-led-assorted-pack-multi-color-leds-for-diy-electronics","title":"5mm LED Assorted Pack – Multi-Color LEDs for DIY Electronics","description":"\u003ch1\u003e5mm LED Assorted\u003c\/h1\u003e\n\u003cp\u003eThis assorted pack contains 50 high-brightness 5mm through-hole LEDs in five essential colours. Use them for prototyping, status indicators, decorative lighting, and learning circuits. Each LED delivers consistent output and reliable performance across a wide range of low-voltage DC projects.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eLED Size\u003c\/td\u003e\n\u003ctd\u003e5mm round, through-hole\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eLens Type\u003c\/td\u003e\n\u003ctd\u003eWater clear\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eColours Included\u003c\/td\u003e\n\u003ctd\u003eRed, Green, Blue, Yellow, White\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eForward Voltage (Vf)\u003c\/td\u003e\n\u003ctd\u003eRed\/Yellow: 2.0-2.2V; Green\/Blue\/White: 3.0-3.3V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eForward Current (If)\u003c\/td\u003e\n\u003ctd\u003e20mA (max continuous)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eViewing Angle\u003c\/td\u003e\n\u003ctd\u003e25-30°\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eStatus indicators for breadboard prototypes\u003c\/li\u003e\n  \u003cli\u003eDIY decorative string lights and mood lamps\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/traffic-light-controller-kit-for-kids-6-8\"\u003eArduino traffic light and logic level tests\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003eCustom LED matrix displays and light sculptures\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThese 5mm LEDs work with any microcontroller board that provides 3.3V or 5V output, including Arduino Uno, Mega, Nano, ESP32, and Raspberry Pi. They are standard 2-pin through-hole components and fit directly into breadboards, perfboards, or custom PCBs. Always pair with a current-limiting resistor appropriate for the supply voltage.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eThe longer leg is the anode (+) and connects to the positive voltage through a resistor. For 5V circuits a 220-ohm resistor is typical; for 3.3V circuits use 100 ohms. Do not exceed 20mA per LED to avoid overheating.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino?\u003c\/summary\u003e\u003cp\u003eYes, directly. Connect each LED with its appropriate resistor to any digital pin and use the digitalWrite() function to control it.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDo these LEDs come with resistors?\u003c\/summary\u003e\u003cp\u003eNo, resistors are sold separately. We recommend a 220-ohm resistor for 5V circuits and a 100-ohm resistor for 3.3V.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I mix colours in a single circuit?\u003c\/summary\u003e\u003cp\u003eAbsolutely. Just ensure each LED gets its own resistor calculated for the supply voltage and its specific forward voltage to balance brightness.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53445153751405,"sku":"CDN-0886","price":120.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_f60a3a82-6ed2-454a-8210-d39a7f6ae3b6.jpg?v=1781513542"},{"product_id":"bc547-npn-transistor-45v-100ma-to-92-for-switching-amplification","title":"BC547 NPN Transistor – 45V 100mA TO-92 for Switching \u0026 Amplification","description":"\u003ch1\u003eBC547 Transistor\u003c\/h1\u003e\n\u003cp\u003eThe BC547 is an NPN bipolar junction transistor in a compact TO-92 package. It handles up to 100mA of collector current and 45V across collector-emitter, making it a versatile choice for low-power switching and small-signal amplification in embedded and hobbyist circuits.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTransistor Type\u003c\/td\u003e\n\u003ctd\u003eNPN BJT\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMax Collector-Emitter Voltage (Vce)\u003c\/td\u003e\n\u003ctd\u003e45V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMax Collector Current (Ic)\u003c\/td\u003e\n\u003ctd\u003e100 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDC Current Gain (hFE)\u003c\/td\u003e\n\u003ctd\u003e110 to 800 (group‑dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eTO-92\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePinout (flat face)\u003c\/td\u003e\n\u003ctd\u003eCollector, Base, Emitter (left to right)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/arduino-pwm-led-dimmer-kit-beginner-project\"\u003eArduino-based LED flasher or dimmer using PWM\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003eSimple audio preamplifier for a microphone module\u003c\/li\u003e\n  \u003cli\u003eRelay or small DC motor driver with flyback protection\u003c\/li\u003e\n  \u003cli\u003eTouch‑activated switch or rain sensor circuit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThe BC547 works with any microcontroller platform that provides base drive voltage above 0.7 V, including Arduino (5 V logic) and Raspberry Pi (3.3 V logic with appropriate base resistor). It pairs easily with other common TO-92 transistors like the BC557 (PNP complement) and with signal diodes, resistors, and small relays.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eAlways use a base resistor (1 kΩ typical for 5 V logic) to limit base current. Connect the emitter directly to ground, place the load between collector and the positive supply, and ensure the collector current stays below 100 mA to avoid permanent damage.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino?\u003c\/summary\u003e\u003cp\u003eYes. Connect a 1 kΩ resistor between the Arduino digital pin and the base, ground the emitter, and place your load (like an LED with its own resistor) between the collector and 5 V.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I identify the pins?\u003c\/summary\u003e\u003cp\u003eHold the transistor with the flat face toward you and the pins pointing down. The pins are, from left to right: Collector (C), Base (B), Emitter (E).\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I use it to drive a relay directly?\u003c\/summary\u003e\u003cp\u003eYes, as long as the relay coil current is under 100 mA. Place a flyback diode across the coil to protect the transistor from voltage spikes when switching off.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53445153882477,"sku":"CDN-0896","price":300.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_06ce8559-3832-43af-ad9f-6e9706ce6c16.jpg?v=1781513542"},{"product_id":"100nf-ceramic-capacitor-pack-50-pieces-for-arduino-diy","title":"100nF Ceramic Capacitor Pack – 50 Pieces for Arduino \u0026 DIY","description":"\u003ch1\u003e100nF Ceramic Capacitor Pack – 50 Pieces for Arduino \u0026amp; DIY\u003c\/h1\u003e\n\n\u003cp class=\"product-lede\"\u003eThis pack of 50 100nF ceramic disc capacitors provides essential decoupling and filtering for microcontroller projects like Arduino, ESP32, and Raspberry Pi, ensuring stable power and clean signals.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCapacitance\u003c\/td\u003e\n\u003ctd\u003e100 nF (0.1 µF)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTolerance\u003c\/td\u003e\n\u003ctd\u003e±10%\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eRated Voltage\u003c\/td\u003e\n\u003ctd\u003e50V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDielectric\u003c\/td\u003e\n\u003ctd\u003eY5V (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePackage Type\u003c\/td\u003e\n\u003ctd\u003eDisc, radial leads\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e50 pieces per pack\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-25°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eLead Spacing\u003c\/td\u003e\n\u003ctd\u003e5 mm (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/pi-pico-led-blink-kit-first-micropython-project-for-beginners\"\u003e\n\u003cstrong\u003eArduino Blink with Decoupling:\u003c\/strong\u003e Add a 100nF capacitor across ATmega328P VCC\/GND to suppress noise and ensure reliable LED toggling.\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-indoor-weather-station\"\u003e\n\u003cstrong\u003eESP32 Sensor Node Power Filter:\u003c\/strong\u003e Use the capacitor on the 3.3V rail of an ESP32 weather station to stabilise readings from a DHT11 sensor.\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRaspberry Pi Audio Low‑Pass Filter:\u003c\/strong\u003e Build an RC filter (100nF + 1kΩ) to smooth PWM audio output from the Pi’s GPIO.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCBSE Class 12 RC Time Constant Lab:\u003c\/strong\u003e Wire the capacitor with a 10kΩ resistor to demonstrate charging\/discharging curves and calculate τ = RC.\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-ac-mains-voltage-monitor\"\u003e\n\u003cstrong\u003eB.Tech Smart Grid Monitor:\u003c\/strong\u003e Filter ripple from a 5V USB supply feeding an ESP32 that logs AC mains voltage using a ZMPT101B sensor.\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003ctable class=\"compat-table\"\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePlatform\u003c\/th\u003e\n\u003cth\u003eCompatible\u003c\/th\u003e\n\u003cth\u003eConnection\u003c\/th\u003e\n\u003cth\u003eLibrary \/ Method\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eArduino Uno R3\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eVCC to GND (decoupling)\u003c\/td\u003e\n\u003ctd\u003eNone (passive)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eArduino Nano\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eVCC to GND\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eArduino Mega 2560\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eVCC to GND\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eESP8266 NodeMCU\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003e3.3V to GND\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eESP32 Dev Board\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003e3.3V to GND\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eRaspberry Pi Pico\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003e3.3V to GND\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eRaspberry Pi 4 \/ 5\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003e5V\/3.3V to GND\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWiring and Interface Notes\u003c\/h2\u003e\n\u003cp\u003eConnect the capacitor directly across the VCC and GND pins of your microcontroller, with the positive lead (if marked) towards VCC and the other to ground. Place the capacitor as close as physically possible to the power pins to minimise lead inductance and maximise high‑frequency noise suppression. For RC filtering, solder the capacitor in series with a resistor – this creates a simple low‑pass filter for signal conditioning.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"faq\"\u003e\n  \u003cdiv class=\"faq-item\"\u003e\n    \u003ch3\u003eWhat is the difference between 100nF, 0.1µF, and the 104 marking on the capacitor?\u003c\/h3\u003e\n    \u003cp\u003e100nF equals 0.1µF; the marking “104” means 10 followed by four zeros in picofarads (100,000pF = 100nF). All three refer to the same capacitance value.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"faq-item\"\u003e\n    \u003ch3\u003eCan I use this capacitor for decoupling in my 5V and 3.3V circuits?\u003c\/h3\u003e\n    \u003cp\u003eYes, the 50V rating is far above typical microcontroller voltages, so it is perfectly safe and effective for both 5V and 3.3V projects.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"Product\",\n      \"@id\": \"https:\/\/compoden.in\/products\/100nf-ceramic-capacitor-pack-50-pieces-for-arduino-diy#product\",\n      \"name\": \"100nF Ceramic Capacitor Pack – 50 Pieces for Arduino \u0026 DIY\",\n      \"description\": \"Buy 50-piece 100nF ceramic capacitor pack for Arduino, ESP32, Raspberry Pi projects. Ideal for decoupling, filtering, and timing. Price Rs75.\",\n      \"sku\": \"CDN-0955\",\n      \"mpn\": \"CDN-0955\",\n      \"brand\": {\"@type\": \"Brand\", \"name\": \"Compoden\"},\n      \"offers\": {\n        \"@type\": \"Offer\",\n        \"priceCurrency\": \"INR\",\n        \"price\": \"PRICE_PLACEHOLDER\",\n        \"availability\": \"https:\/\/schema.org\/InStock\",\n        \"seller\": {\"@type\": \"Organization\", \"name\": \"Compoden\", \"url\": \"https:\/\/compoden.in\"}\n      }\n    },\n    {\n      \"@type\": \"FAQPage\",\n      \"@id\": \"https:\/\/compoden.in\/products\/100nf-ceramic-capacitor-pack-50-pieces-for-arduino-diy#faq\",\n      \"mainEntity\": [\n        {\"@type\": \"Question\", \"name\": \"What is the difference between 100nF, 0.1µF, and the 104 marking on the capacitor?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"100nF equals 0.1µF; the marking “104” means 10 followed by four zeros in picofarads (100,000pF = 100nF). All three refer to the same capacitance value.\"}},\n        {\"@type\": \"Question\", \"name\": \"Can I use this capacitor for decoupling in my 5V and 3.3V circuits?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes, the 50V rating is far above typical microcontroller voltages, so it is perfectly safe and effective for both 5V and 3.3V projects.\"}}\n      ]\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53454856880493,"sku":"CDN-0955","price":90.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/p_d1a7ed1c-6d05-4b5f-a33e-edd695f74912.png?v=1782232954"},{"product_id":"ir-led-940nm-infrared-emitter-for-night-vision-remote-control","title":"IR LED 940nm – Infrared Emitter for Night Vision \u0026 Remote Control","description":"\u003ch1\u003eIR LED 940nm – Infrared Emitter for Night Vision \u0026amp; Remote Control\u003c\/h1\u003e\n\n\u003cp class=\"product-lede\"\u003eThis 940nm infrared LED emits invisible light ideal for night vision, remote controls, object sensors, and proximity switches. Works with Arduino, ESP32, and Raspberry Pi. 5mm clear lens, low 1.25V forward voltage.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003ePeak Emission Wavelength\u003c\/th\u003e\n\u003ctd\u003e940 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eForward Voltage (V\u003csub\u003eF\u003c\/sub\u003e)\u003c\/th\u003e\n\u003ctd\u003e1.2 V – 1.4 V (1.25 V typ. @ 20 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eForward Current (Continuous)\u003c\/th\u003e\n\u003ctd\u003e30 mA (max. 50 mA peak)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003ePower Dissipation\u003c\/th\u003e\n\u003ctd\u003e75 mW\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eViewing Angle\u003c\/th\u003e\n\u003ctd\u003e20° – 30°\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eLens Color\u003c\/th\u003e\n\u003ctd\u003eClear\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003ePackage\u003c\/th\u003e\n\u003ctd\u003e5 mm Round Through-Hole\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eLead Spacing\u003c\/th\u003e\n\u003ctd\u003e2.54 mm (0.1 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/arduino-uno-co-detector-kit-with-sms-alert-and-exhaust-fan-control\"\u003e\n\u003cstrong\u003eInfrared proximity detector:\u003c\/strong\u003e Pair with an IR photodiode to build an obstacle‑sensing alarm using an Arduino Uno and a buzzer.\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWiFi‑controlled remote:\u003c\/strong\u003e Use an ESP32 to broadcast IR commands over WiFi to control a TV or air conditioner from a smartphone.\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-pir-motion-night-light\"\u003e\n\u003cstrong\u003eNight vision illuminator:\u003c\/strong\u003e Drive an array of these LEDs with a Raspberry Pi and a PIR sensor to automatically light a dark room for an IR camera.\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCBSE Class 11–12 \/ ATL Lab:\u003c\/strong\u003e Demonstrate optical wireless communication by sending Morse code pulses between two Arduino boards using IR emitter‑detector pairs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eB.Tech final year \/ Smart India Hackathon:\u003c\/strong\u003e Design a multi‑channel IR data link for secure line‑of‑sight transmission between devices, with error detection and protocol implementation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003ctable class=\"compat-table\"\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePlatform\u003c\/th\u003e\n\u003cth\u003eCompatible\u003c\/th\u003e\n\u003cth\u003eConnection\u003c\/th\u003e\n\u003cth\u003eLibrary \/ Method\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eArduino Uno R3\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eAny digital pin (e.g., D2) via 220Ω resistor to anode; cathode to GND\u003c\/td\u003e\n\u003ctd\u003edigitalWrite()\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eArduino Nano\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eAny digital pin (e.g., D3) via 220Ω resistor\u003c\/td\u003e\n\u003ctd\u003edigitalWrite()\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eArduino Mega 2560\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eAny digital pin via 220Ω resistor\u003c\/td\u003e\n\u003ctd\u003edigitalWrite()\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eESP8266 NodeMCU\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eAny GPIO (e.g., D4) via 220Ω resistor\u003c\/td\u003e\n\u003ctd\u003edigitalWrite() \/ ESP8266WiFi\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eESP32 Dev Board\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eAny GPIO (e.g., GPIO15) via 220Ω resistor\u003c\/td\u003e\n\u003ctd\u003edigitalWrite() \/ IRremoteESP32\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eRaspberry Pi Pico\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eAny GP pin (e.g., GP0) via 220Ω resistor\u003c\/td\u003e\n\u003ctd\u003emachine.Pin()\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eRaspberry Pi 4 \/ 5\u003c\/td\u003e\n\u003ctd\u003eYes, with transistor driver\u003c\/td\u003e\n\u003ctd\u003eGPIO (e.g., GPIO17) to NPN transistor base, LED via collector with 220Ω resistor; emitter to GND\u003c\/td\u003e\n\u003ctd\u003eRPi.GPIO or gpiozero\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWiring and Interface Notes\u003c\/h2\u003e\n\u003cp\u003eConnect the longer anode leg to a digital output pin through a 220Ω current‑limiting resistor. The shorter cathode leg goes directly to GND. Never exceed 30 mA continuous current, and match the resistor value to your board’s logic level (3.3V or 5V) to avoid damage.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"faq\"\u003e\n  \u003cdiv class=\"faq-item\"\u003e\n    \u003ch3\u003eDoes this IR LED produce visible red light when powered on?\u003c\/h3\u003e\n    \u003cp\u003eNo, it emits light in the near‑infrared spectrum (940nm) invisible to the human eye. You can quickly check operation by viewing the LED through a smartphone camera, which will show a faint purple glow.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"faq-item\"\u003e\n    \u003ch3\u003eCan I use this LED as a direct replacement in standard remote controls?\u003c\/h3\u003e\n    \u003cp\u003eYes, 940nm is the wavelength used in most consumer IR remotes. Ensure your circuit drives the LED with the correct current and, for longer range, modulate it at the typical 38 kHz carrier frequency.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"Product\",\n      \"@id\": \"https:\/\/compoden.in\/products\/ir-led-940nm-infrared-emitter-for-night-vision-remote-control#product\",\n      \"name\": \"IR LED 940nm – Infrared Emitter for Night Vision \u0026 Remote Control\",\n      \"description\": \"940nm infrared LED emitter for night vision cameras, IR remotes, obstacle detection. Works with Arduino, ESP32, Raspberry Pi. 5mm package, 1.2V forward voltage.\",\n      \"sku\": \"CDN-0976\",\n      \"mpn\": \"CDN-0976\",\n      \"brand\": {\"@type\": \"Brand\", \"name\": \"Compoden\"},\n      \"offers\": {\n        \"@type\": \"Offer\",\n        \"priceCurrency\": \"INR\",\n        \"price\": \"PRICE_PLACEHOLDER\",\n        \"availability\": \"https:\/\/schema.org\/InStock\",\n        \"seller\": {\"@type\": \"Organization\", \"name\": \"Compoden\", \"url\": \"https:\/\/compoden.in\"}\n      }\n    },\n    {\n      \"@type\": \"FAQPage\",\n      \"@id\": \"https:\/\/compoden.in\/products\/ir-led-940nm-infrared-emitter-for-night-vision-remote-control#faq\",\n      \"mainEntity\": [\n        {\"@type\": \"Question\", \"name\": \"Does this IR LED produce visible red light when powered on?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No, it emits light in the near‑infrared spectrum (940nm) invisible to the human eye. 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