{"product_id":"1ch-5v-optocoupler-relay-board","title":"1CH 5v Optocoupler Relay Board","description":"\u003cmeta name=\"description\" content=\"Buy 1CH 5v Optocoupler Relay Board 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\u003e1CH 5V Optocoupler Relay Board\u003c\/h1\u003e\n\u003cp\u003eControl high-voltage appliances safely from your microcontroller with this 1-Channel 5V Optocoupler Relay Board. The built-in optocoupler provides complete electrical isolation between your low-voltage control circuit (Arduino, Raspberry Pi, ESP32) and the high-voltage load side, protecting your sensitive electronics from voltage spikes and back-EMF. Ideal for home automation, IoT switching, and industrial control projects. Available at The Tech Depot, Bengaluru with fast shipping and full technical support.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e1 Channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Voltage\u003c\/td\u003e\n\u003ctd\u003e5V DC (TTL Logic Compatible)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrigger Type\u003c\/td\u003e\n\u003ctd\u003eActive Low (Low-level trigger)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eOptocoupler isolated (input-output electrical separation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Type\u003c\/td\u003e\n\u003ctd\u003eSPDT (Single Pole Double Throw) - NO, NC, COM terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Rated Load\u003c\/td\u003e\n\u003ctd\u003e10A @ 250V AC \/ 10A @ 30V DC (maximum)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoil Voltage\u003c\/td\u003e\n\u003ctd\u003e5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal Current\u003c\/td\u003e\n\u003ctd\u003e~15-20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitching Time\u003c\/td\u003e\n\u003ctd\u003e~10 ms (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Mechanical Life\u003c\/td\u003e\n\u003ctd\u003e~100,000 operations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndicator LEDs\u003c\/td\u003e\n\u003ctd\u003ePower LED + Relay Status LED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBoard Dimensions\u003c\/td\u003e\n\u003ctd\u003e~50 x 26 x 18.5 mm (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eScrew holes for secure panel\/chassis mounting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector - Input\u003c\/td\u003e\n\u003ctd\u003e3-pin header (VCC, GND, IN)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector - Output\u003c\/td\u003e\n\u003ctd\u003eScrew terminal block (NO, COM, NC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Platforms\u003c\/td\u003e\n\u003ctd\u003eArduino, Raspberry Pi, ESP8266, ESP32, STM32, PIC, 8051, NodeMCU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-25 degreesC to +70 degreesC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eRelay \u0026amp; Switching Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eOriginal\/Authentic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e7-day warranty on manufacturing defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupport\u003c\/td\u003e\n\u003ctd\u003eEmail \u0026amp; WhatsApp 24\/7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptocoupler Isolation:\u003c\/strong\u003e Completely separates the microcontroller side from the relay coil and high-voltage load, preventing ground loops, noise, and dangerous voltage feedback\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive Low Trigger:\u003c\/strong\u003e Relay activates when the input signal is pulled LOW, compatible with most microcontroller GPIO pins and open-collector outputs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Current Switching:\u003c\/strong\u003e Handles loads up to 10A at 250V AC or 30V DC - enough for lights, fans, motors, pumps, solenoid valves, and heaters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSPDT Relay Output:\u003c\/strong\u003e Three-terminal screw block (NO, NC, COM) allows both normally-open and normally-closed configurations for flexible circuit design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Status LEDs:\u003c\/strong\u003e Onboard power indicator and relay activation LED provide instant visual confirmation of board status and switching state\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScrew Terminal Output:\u003c\/strong\u003e Secure, vibration-resistant connections for high-voltage wiring - no soldering needed on the load side\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Pin Header Input:\u003c\/strong\u003e 3-pin header (VCC, GND, IN) for quick breadboard prototyping or direct jumper wire connection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Single-Channel Design:\u003c\/strong\u003e Small footprint perfect for projects requiring just one switching channel without wasting board space\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Holes:\u003c\/strong\u003e Pre-drilled holes for secure screw mounting inside enclosures, control panels, or DIN rail setups\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Platform Compatibility:\u003c\/strong\u003e Works seamlessly with Arduino Uno\/Mega\/Nano, Raspberry Pi, ESP8266, ESP32, NodeMCU, STM32, and virtually any 5V logic microcontroller\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose This?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e100% authentic from trusted suppliers - quality-tested relay and optocoupler components\u003c\/li\u003e\n\u003cli\u003e1-5 day shipping, 7-8 day delivery from Bengaluru warehouse across India\u003c\/li\u003e\n\u003cli\u003eExpert technical support included for wiring, code, and integration help\u003c\/li\u003e\n\u003cli\u003eOptocoupler isolation adds a critical safety layer absent in basic relay modules\u003c\/li\u003e\n\u003cli\u003eBattle-tested design used in thousands of home automation and IoT projects worldwide\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow It Works\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Side:\u003c\/strong\u003e Connect VCC to 5V, GND to ground, and IN to a digital GPIO pin on your microcontroller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptocoupler Stage:\u003c\/strong\u003e When IN goes LOW, current flows through the optocoupler LED, which triggers the phototransistor on the isolated side - no electrical connection crosses the barrier\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelay Activation:\u003c\/strong\u003e The phototransistor output drives a transistor that energizes the relay coil, mechanically\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhen will I receive my order?\u003c\/summary\u003e\n\u003cp\u003eProducts ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs technical support available?\u003c\/summary\u003e\n\u003cp\u003eYes, 24\/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is your return policy?\u003c\/summary\u003e\n\u003cp\u003e7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre bulk discounts available?\u003c\/summary\u003e\n\u003cp\u003eYes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003ch2\u003eBuy 1CH 5v Optocoupler Relay Board Online in India\u003c\/h2\u003e\n\u003cp\u003ePurchase the \u003cstrong\u003e1CH 5v Optocoupler Relay Board\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\u003e1CH 5v Optocoupler Relay Board\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\u003e1CH 5v Optocoupler Relay Board\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":48746575003905,"sku":"TTD-18049","price":166.85,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/1577\/3185\/files\/081031cfdc2d3a4920b6ea0c4c2e31d3.jpg?v=1778107904","url":"https:\/\/techdepot.in\/products\/1ch-5v-optocoupler-relay-board","provider":"Tech Depot India","version":"1.0","type":"link"}