{"product_id":"12v-2a-dc-adapter-reliable-power-supply-for-projects","title":"12V 2A DC Adapter – Reliable Power Supply for Projects","description":"\u003ch1\u003e12V 2A DC Power Adapter\u003c\/h1\u003e\u003cp\u003eThe 12V 2A DC power adapter provides a stable 12V output for your electronics projects. It is ideal for powering microcontrollers, motors, LEDs, and other DC devices requiring a reliable power source. The included barrel jack connector with center-positive polarity ensures easy connection to most development boards and modules.\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\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003eAC 100-240V 50\/60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd\u003eDC 12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current\u003c\/td\u003e\n\u003ctd\u003e2A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector Type\u003c\/td\u003e\n\u003ctd\u003e5.5mm x 2.1mm barrel jack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePolarity\u003c\/td\u003e\n\u003ctd\u003eCenter positive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Length\u003c\/td\u003e\n\u003ctd\u003eApproximately 1 meter\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\u003e\u003ca href=\"\/products\/arduino-uno-r3-home-automation-project-kit\"\u003ePower an Arduino Uno and a 12V relay module for home automation projects.\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eDrive a small to medium DC motor with a motor driver for robotics applications.\u003c\/li\u003e\n\u003cli\u003eSupply power to a Raspberry Pi via a 5V step-down converter for a compact computer setup.\u003c\/li\u003e\n\u003cli\u003eLight up a 12V LED strip for decorative or functional lighting solutions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cp\u003eThis adapter works with any device that accepts 12V DC through a 5.5mm x 2.1mm barrel jack. It is commonly used with Arduino Uno and Mega (via the onboard regulator capable of handling up to 12V), Raspberry Pi (with an external 5V regulator), and 12V LED strips. Ensure your total current draw does not exceed 2A to avoid overloading.\u003c\/p\u003e\u003ch2\u003eWiring Notes\u003c\/h2\u003e\u003cp\u003eSimply plug the barrel jack into your device’s power port. If you need bare wire connections, you can cut the jack off, but always verify polarity—center pin is positive, outer sleeve is negative. For projects requiring more than 2A, select a higher-rated adapter to prevent voltage drop or overheating.\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 12V adapter can power Arduino Uno and Mega through the barrel jack or VIN pin. The onboard voltage regulator accepts 7-12V, so 12V is safe as long as the current requirements of your setup are within the adapter's 2A limit.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I use this to power a 5V device?\u003c\/summary\u003e\u003cp\u003eDirectly connecting 12V to a 5V device will damage it. Use a voltage regulator or buck converter to step down the voltage to 5V. This adapter can supply the input for such a converter, which then powers your 5V gear safely.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is the connector size and polarity?\u003c\/summary\u003e\u003cp\u003eThe adapter ends in a standard 5.5mm outer diameter and 2.1mm inner diameter barrel jack. Polarity is center positive, meaning the tip is positive and the outer barrel is negative. Always confirm your device accepts this configuration.\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":53445044797805,"sku":"CDN-0855","price":300.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_409e5b34-c335-43fc-8187-d99d4c9514f7.jpg?v=1781513040","url":"https:\/\/compoden.com\/products\/12v-2a-dc-adapter-reliable-power-supply-for-projects","provider":"Compoden","version":"1.0","type":"link"}