{"product_id":"l7812cv-12v-positive-voltage-regulator-ic-to-220-5pcs","title":"L7812CV 12V Positive Voltage Regulator IC TO-220 – Pack of 5 (LM7812)","description":"\u003ch2\u003eL7812CV +12V Positive Linear Voltage Regulator — TO-220 (5-Pack)\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eL7812CV\u003c\/strong\u003e (also known as \u003cstrong\u003eLM7812\u003c\/strong\u003e) is a fixed +12V positive linear voltage regulator in a \u003cstrong\u003eTO-220\u003c\/strong\u003e through-hole package, delivering up to \u003cstrong\u003e1.5A\u003c\/strong\u003e of continuous output current. It is the standard +12V regulator for relay drivers, motor control, audio equipment, and general-purpose 12V power supply circuits.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eL7812CV \/ LM7812\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eTO-220\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd\u003e+12V (fixed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current (Max)\u003c\/td\u003e\n\u003ctd\u003e1.5A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e+14.5V to +35V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDropout Voltage\u003c\/td\u003e\n\u003ctd\u003e~2V @ 1A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLine Regulation\u003c\/td\u003e\n\u003ctd\u003e4mV typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad Regulation\u003c\/td\u003e\n\u003ctd\u003e12mV typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Noise\u003c\/td\u003e\n\u003ctd\u003e75μV RMS (10Hz–100kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtections\u003c\/td\u003e\n\u003ctd\u003eThermal shutdown, current limiting, SOA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e5 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eL78xx Family — Common Voltage Options\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003eOutput Voltage\u003c\/th\u003e\n\u003cth\u003eCommon Use\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL7805CV\u003c\/td\u003e\n\u003ctd\u003e+5V\u003c\/td\u003e\n\u003ctd\u003eLogic, Arduino, MCU power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL7809CV\u003c\/td\u003e\n\u003ctd\u003e+9V\u003c\/td\u003e\n\u003ctd\u003eOp-amp, sensor supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL7812CV\u003c\/td\u003e\n\u003ctd\u003e+12V\u003c\/td\u003e\n\u003ctd\u003eRelay, motor, audio, CCTV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL7815CV\u003c\/td\u003e\n\u003ctd\u003e+15V\u003c\/td\u003e\n\u003ctd\u003eOp-amp rail, audio power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose L7812CV?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFixed +12V Output\u003c\/strong\u003e — No external resistors; stable 12V rail for relays, motors, and audio circuits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.5A Output Current\u003c\/strong\u003e — Powers relay coils, small DC motors, LED strips, and op-amp arrays\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in Protection\u003c\/strong\u003e — Thermal shutdown and current limiting prevent damage under fault conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTO-220 Package\u003c\/strong\u003e — Easy heatsink mounting; standard footprint for PCB and point-to-point wiring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Replacement\u003c\/strong\u003e — Pin-compatible with LM7812, KA7812, MC7812, UA7812\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRelay coil driver supply (5V logic + 12V relay coil)\u003c\/li\u003e\n\u003cli\u003eDC motor speed controller power supply\u003c\/li\u003e\n\u003cli\u003eCCTV camera and IP camera 12V supply\u003c\/li\u003e\n\u003cli\u003eAudio amplifier and preamplifier power rail\u003c\/li\u003e\n\u003cli\u003e±12V dual supply (paired with L7912CV)\u003c\/li\u003e\n\u003cli\u003eLED strip 12V regulated supply\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Application Circuit\u003c\/h3\u003e\u003cp\u003eInput: 15V–25V DC (from transformer + bridge rectifier). Add 0.33μF ceramic capacitor at input and 0.1μF at output for stability. Use a heatsink above 500mA continuous load. Output: stable +12V ±4% over line and load variations.\u003c\/p\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: Can L7812CV regulate from a 13.8V car battery?\u003c\/strong\u003e\u003cbr\u003eA: No — minimum input is 14.5V (2.5V dropout above 12V output). A 13.8V car battery is below the minimum input voltage.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is L7812CV the same as LM7812?\u003c\/strong\u003e\u003cbr\u003eA: Yes — LM7812 is the generic designation; L7812CV is STMicroelectronics’ part number. Electrically identical and pin-compatible.\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e5× L7812CV TO-220 +12V Positive Voltage Regulator\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991489138923,"sku":"\u003cnone\u003e","price":7.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/l7812cv-to220-voltage-regulator.webp?v=1761535788","url":"https:\/\/keszoox.com\/products\/l7812cv-12v-positive-voltage-regulator-ic-to-220-5pcs","provider":"Keszoox","version":"1.0","type":"link"}