--- product_id: 376529701 title: "3v Relay Board for Raspberry Pi Arduino Relay Module 1 Channel Opto-Isolate High Level Trigger for IOT ESP8266 Microcontrollers Development Board" brand: "azko" price: "FREE" currency: COP in_stock: false url: https://www.desertcart.co/products/376529701-3v-relay-board-for-raspberry-pi-arduino-relay-module-1 store_origin: CO region: Colombia --- # Fast response <20ms 10A load capacity 100,000 cycles lifespan 3v Relay Board for Raspberry Pi Arduino Relay Module 1 Channel Opto-Isolate High Level Trigger for IOT ESP8266 Microcontrollers Development Board **Brand:** azko **Price:** FREE **Availability:** ❌ Out of Stock ## Summary > 🔧 Unleash Your Creativity with Precision Control! ## Quick Answers - **What is this?** 3v Relay Board for Raspberry Pi Arduino Relay Module 1 Channel Opto-Isolate High Level Trigger for IOT ESP8266 Microcontrollers Development Board by azko - **How much does it cost?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co](https://www.desertcart.co/products/376529701-3v-relay-board-for-raspberry-pi-arduino-relay-module-1) ## Best For - azko enthusiasts ## Why This Product - Trusted azko brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Quick Setup:** Get started in no time with a response time of less than 20ms. - • **Robust Performance:** Handles up to 10A for both AC and DC loads, ensuring reliability. - • **Opto-Isolation Power:** Experience enhanced anti-interference with photocoupler isolation. - • **Seamless Integration:** Compatible with a variety of microcontrollers including Arduino and Raspberry Pi. - • **Flexible Power Options:** Easily switch between shared or separate power supplies with jumper caps. ## Overview The 3v Relay Board is a versatile 1-channel relay module designed for seamless integration with various microcontrollers, offering robust performance with a load capacity of 10A and a lifespan of up to 100,000 cycles. Its opto-isolation feature ensures high anti-interference capability, making it ideal for IoT applications. ## Description Specification: Channel: 1 channel Material: Circuit board Control signal: TTL Work voltage: DC 3V/3.3V Main chip: EL817, SRD-DC03V-SL-C Compatible Load:10A 250VAC, 10A 30VDC Response time :Less than 20 milliseconds Single Socket Length: 7.5:mm Relay Size: 70mm X17mm X20mm (LxWxH) Power interface: 1. VCC: positive pole of power supply (3v/3.3v) 2. GND: connect to the negative pole of the power supply 3, IN: high level control relay suction Load interface: 1. NO: normally open interface of the relay. The relay is suspended before suction and shorted with COM after suction 2. COM: common interface of relay 3. NC: normally closed interface of relay, short connection between relay and COM before suction and suspension after suction Note: If you're switching high voltages, be very careful handling this device. The terminal block screws, in particular, are at full controlled voltages. Turn off all power off before making changes. 100% Satisfaction Guarantee: 12-Month Warranty; No satisfied, Free reason for return; Quality problem, please contact us, we will resend your FREE Replacements or make you FULL Refund. Package include: 2pcs x1 Channel 3v Relay Board ## Features - 【1 Channel Relay Module】- This Relay Board provides a single relay that can be controlled by any 3V/3.3V digital input from your microcontroller IO. - 【Main Specification】- The 3v Relay 1 Channel power switch module compatible with 10A 250VAC and 10A 30VDC load.4pcs * 2.5 mm Fixed Bolt Hole. - 【Adopted Optocoupler Isolation】- 3V/3.3V power relay module supports photocoupler isolation control and dual power supply input ensure high anti-interference ability. Fast response time less than 20ms and long life time up to 100,000 times snap action with diode freewheel protection. - 【Jumper Caps】You can select whether the relay and the signal use the same power supply or not by removing the jumper caps on the pins. And It is better to share the same power supply, because that is more convenient for using. - 【Wide Application】- These 3v relay board works well with Arduino/ ARM /PIC /AVR /MCU/Raspberry/CNC machine/ PS4/3.3V /NodeMCU/IOT/ ESP8266 module etc. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09G65YFZ6 | | Best Sellers Rank | #6,421 in Single Board Computers (Computers & Accessories) | | Brand Name | AZKO | | Coil Voltage | 3 volts | | Connector Type | Screw, Through Hole | | Contact Current Rating | 10 A | | Contact Material | Silver | | Contact Type | Normally Closed, Normally Open | | Current Rating | 10 A | | Customer Reviews | 4.4 4.4 out of 5 stars (55) | | Maximum Switching Current | 10 A | | Maximum Switching Voltage | 3.3 volts | | Minimum Switching Voltage | 3 volts | | Mounting Type | Screw Mount | | Number of Items | 2 | | Number of Packs | 2 | | Operation Mode | Automatic | | UPC | 734914033969 | | Wattage | 3.3 watts | ## Product Details - **Connector Type:** Screw, Through Hole - **Contact Material:** Silver - **Contact Type:** Normally Closed, Normally Open - **Current Rating:** 10 A - **Mounting Type:** Screw Mount ## Images ![3v Relay Board for Raspberry Pi Arduino Relay Module 1 Channel Opto-Isolate High Level Trigger for IOT ESP8266 Microcontrollers Development Board - Image 1](https://m.media-amazon.com/images/I/51xyObVc2tL.jpg) ![3v Relay Board for Raspberry Pi Arduino Relay Module 1 Channel Opto-Isolate High Level Trigger for IOT ESP8266 Microcontrollers Development Board - Image 2](https://m.media-amazon.com/images/I/515placj2qL.jpg) ![3v Relay Board for Raspberry Pi Arduino Relay Module 1 Channel Opto-Isolate High Level Trigger for IOT ESP8266 Microcontrollers Development Board - Image 3](https://m.media-amazon.com/images/I/51Q8RCih66L.jpg) ![3v Relay Board for Raspberry Pi Arduino Relay Module 1 Channel Opto-Isolate High Level Trigger for IOT ESP8266 Microcontrollers Development Board - Image 4](https://m.media-amazon.com/images/I/51liOyrkuuL.jpg) ![3v Relay Board for Raspberry Pi Arduino Relay Module 1 Channel Opto-Isolate High Level Trigger for IOT ESP8266 Microcontrollers Development Board - Image 5](https://m.media-amazon.com/images/I/5165shlYJfL.jpg) ## Frequently Bought Together - 3v Relay Board for Raspberry Pi Arduino Relay Module 1 Channel Opto-Isolate High Level Trigger for IOT ESP8266 Microcontrollers Development Board - ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects - 2pcs DHT11 Temperature Humidity Sensor Module Digital Temperature Humidity Sensor 3.3V-5V with Wires for Arduino Raspberry Pi 2 3 (2pcs DHT11) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co/products/376529701-3v-relay-board-for-raspberry-pi-arduino-relay-module-1](https://www.desertcart.co/products/376529701-3v-relay-board-for-raspberry-pi-arduino-relay-module-1) --- *Product available on Desertcart Colombia* *Store origin: CO* *Last updated: 2026-10-21*