{"product_id":"four-channel-12v-uln2003-based-relay-board-module","title":"Four CHANNEL 12V ULN2003 BASED RELAY BOARD MODULE","description":"\u003cmeta name=\"description\" content=\"Buy Four CHANNEL 12V ULN2003 BASED RELAY BOARD MODULE online in India at best price from The Tech Depot, Bengaluru. Authentic product, 7-day warranty on manufacturing defects, fast delivery across India.\"\u003e\n\u003ch1\u003eFour CHANNEL 12V ULN2003 BASED RELAY BOARD MODULE\u003c\/h1\u003e\n\n\u003cp\u003e\u003cstrong\u003eQuality electronics from The Tech Depot, Bengaluru. Fast shipping, 7-day warranty on manufacturing defects, expert support.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eFeature\u003c\/td\u003e\n\u003ctd\u003eDetails\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectronics Component\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChannels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 Independent Relay Channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDriver IC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eULN2003 Darlington Transistor Array\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelay Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSPDT (Single Pole Double Throw)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Current Per Channel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e500mA (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoil Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eContact Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10A @ 250V AC \/ 10A @ 30V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Logic\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eActive LOW (LED indicator)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIsolation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOptocoupler isolated inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOriginal\/Authentic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7-day warranty on manufacturing defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupport\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEmail \u0026amp; WhatsApp 24\/7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eWhy Choose This?\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003e100% Authentic\u003c\/strong\u003e - Sourced from trusted suppliers with verification\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFast Delivery\u003c\/strong\u003e - 1-5 day shipping, 7-8 day delivery from Bengaluru warehouse\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Support\u003c\/strong\u003e - 24\/7 technical assistance included\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReliable Performance\u003c\/strong\u003e - Industrial-grade ULN2003 driver IC\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSafe Operation\u003c\/strong\u003e - LED indicators for each channel status\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCost-Effective\u003c\/strong\u003e - Perfect for budget-conscious projects\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4 Independent Channels\u003c\/strong\u003e - Control 4 separate loads simultaneously\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eULN2003 Driver IC\u003c\/strong\u003e - High-current Darlington transistor array for reliable switching\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Trigger Voltage\u003c\/strong\u003e - Compatible with 3.3V and 5V microcontroller outputs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED Status Indicators\u003c\/strong\u003e - Visual feedback for each relay state\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Design\u003c\/strong\u003e - Space-saving module for embedded applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Switching Speed\u003c\/strong\u003e - Suitable for rapid on\/off cycling\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Diodes\u003c\/strong\u003e - Built-in flyback diodes prevent voltage spikes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications \u0026amp; Project Ideas\u003c\/h2\u003e\n\n\u003ch3\u003eDIY Electronics\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHome automation projects\u003c\/li\u003e\n\u003cli\u003eSmart lighting systems\u003c\/li\u003e\n\u003cli\u003eHobby robotics and RC projects\u003c\/li\u003e\n\u003cli\u003eWeather station automation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProfessional Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial equipment control\u003c\/li\u003e\n\u003cli\u003eHVAC system automation\u003c\/li\u003e\n\u003cli\u003ePump and motor control\u003c\/li\u003e\n\u003cli\u003eSecurity system integration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eLearning \u0026amp; Education\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMicrocontroller interfacing projects\u003c\/li\u003e\n\u003cli\u003eArduino and Raspberry Pi projects\u003c\/li\u003e\n\u003cli\u003eElectronics and automation courses\u003c\/li\u003e\n\u003cli\u003eIoT prototype development\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecific Use Cases\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSwitching high-power DC motors\u003c\/li\u003e\n\u003cli\u003eControlling solenoid valves\u003c\/li\u003e\n\u003cli\u003eRelay-based alarm systems\u003c\/li\u003e\n\u003cli\u003eTemperature control systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\n\u003cp\u003eFour Channel 12V Relay Board Module \n\u003c\/p\u003e\u003cp\u003eUser Manual \u0026amp; Pinout Diagram\u003c\/p\u003e\n Quick Start Guide \n Technical Documentation \n\u003cp\u003eSupport Contact Information\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Details\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003ePin Configuration:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIN1-IN4: Input pins (active LOW)\u003c\/li\u003e\n\u003cli\u003eGND: Ground\u003c\/li\u003e\n\u003cli\u003eVCC: 12V power supply\u003c\/li\u003e\n\u003cli\u003eCOM, NO, NC: Relay contacts (4 sets)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eOperating Conditions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTemperature Range: 0 degreesC to 60 degreesC\u003c\/li\u003e\n\u003cli\u003eStorage Temperature: -20 degreesC to 85 degreesC\u003c\/li\u003e\n\u003cli\u003eHumidity: 10% to 90% (non-condensing)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eIs this 100% authentic?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes, all products are sourced from authorized distributors with complete authentication verification and quality assurance checks.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eWhat warranty is included?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003e7-day warranty on manufacturing defects covering all manufacturing defects and failures under normal operating conditions.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eHow fast is the shipping?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003e1-5 day shipping, 7-8 day delivery to most locations in India from our Bengaluru warehouse. Express options available.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eDo you provide technical support?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes! Full 24\/7 technical support via email and WhatsApp. Our engineers can help with circuit design, troubleshooting, and integration.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eWhat is the return policy?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003e7-day returns on manufacturing defects only with full refund or replacement. applicable on manufacturing defects only on manufacturing defects.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eCan I get bulk discounts?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes! Wholesale pricing available on orders of 10+ units. Contact us for custom quotes.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eIs this compatible with Arduino\/Raspberry Pi?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes, fully compatible with Arduino, Raspberry Pi, and other microcontroller platforms. Works with 3.3V and 5V logic levels.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eWhat power supply do I need?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eA regulated 12V DC power supply (1A minimum recommended for all 4 channels). Ensure proper current capacity for your load.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eCustomer Support\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eEmail:\u003c\/strong\u003e support@thetechdepot.in\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp:\u003c\/strong\u003e Available 24\/7\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLocation:\u003c\/strong\u003e Bengaluru, India\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWe're here to help!\u003c\/strong\u003e Contact us with any questions about specifications, compatibility, or project implementation.\u003c\/p\u003e\n\u003ch2\u003eBuy Four CHANNEL 12V ULN2003 BASED RELAY BOARD MODULE Online in India\u003c\/h2\u003e\n\u003cp\u003ePurchase the \u003cstrong\u003eFour CHANNEL 12V ULN2003 BASED RELAY BOARD MODULE\u003c\/strong\u003e online at \u003ca href=\"https:\/\/thetechdepot.in\"\u003eThe Tech Depot\u003c\/a\u003e - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on \u003cstrong\u003eFour CHANNEL 12V ULN2003 BASED RELAY BOARD MODULE\u003c\/strong\u003e with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.\u003c\/p\u003e\n\u003cp\u003eLooking to buy \u003cstrong\u003eFour CHANNEL 12V ULN2003 BASED RELAY BOARD MODULE\u003c\/strong\u003e at the best price in India? The Tech Depot offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.\u003c\/p\u003e","brand":"The Tech Depot","offers":[{"title":"Default Title","offer_id":48745337225473,"sku":"TTD-16231","price":262.88,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/1577\/3185\/files\/0e6671bdb8d59627d5ee7a9949325da4.png?v=1778084638","url":"https:\/\/techdepot.in\/products\/four-channel-12v-uln2003-based-relay-board-module","provider":"Tech Depot India","version":"1.0","type":"link"}