{"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","url":"https:\/\/compoden.com\/products\/10f-supercapacitor-27v-ultracapacitor-for-backup-power","provider":"Compoden","version":"1.0","type":"link"}