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1CH 5v Optocoupler Relay Board

1CH 5v Optocoupler Relay Board

Regular price Rs. 74
Regular price Rs. 89 Sale price Rs. 74
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  • Control High Current Loads: The 5V Single Channel Relay with Optocoupler allows you to control higher current loads, such as solenoids, motors, lights, and fans with ease.
  • Wide Compatibility: This relay board is compatible with microcontroller development boards, PC parallel ports, and Arduino Uno.
  • High-Quality Components: It features high-quality screw terminals for quick and easy connections and comes equipped with a free-wheeling diode to protect your microcontroller.
  • LED Status Indicators: LED indicators show the relay's ON/OFF status, making it easy to monitor your applications.
  • 12V Operating Voltage: This 1-Channel Relay works with a 12V power supply, offering a wide operating range.

1 Channel Optocoupler Relay Board

Looking to buy a 5V Single Channel Relay with Optocoupler to control high current loads effortlessly? Your search ends here. This versatile relay board allows you to manage solenoids, motors, lights, and fans with ease, making it an ideal choice for various projects. No matter if you're working with microcontroller development boards, PC parallel ports, or Arduino Uno, this relay board offers wide compatibility.

Its high-quality components, including dependable screw terminals, ensure quick and secure connections. Additionally, it comes equipped with a free-wheeling diode to safeguard your microcontroller from relay kickback, enhancing the safety of your projects. Stay in control with ease, thanks to the built-in LED status indicators. These LEDs provide a visual cue for whether the relay is ON or OFF, allowing you to monitor your applications effortlessly. This 5V Single Channel Relay operates at a 12V voltage, making it versatile and suitable for various scenarios.

If you're searching for a reliable solution to control high current loads, this 1-Channel Relay is your answer. Check the price and make your purchase today to power up your projects.


Single-channel 12 volt relay connections are

  • Connect VCC to the 12-volt power supply
  • The control signal is used to control the relay. If the signal will be HIGH (5V) the relay will be switched to NO(Normally Open) and if the signal is LOW (0V) the relay will be switched to Normally Connected (NC)
  • If the control signal is high the led will glow and Vice- versa.

This is a 12V 1-Channel Relay interface board that can be controlled directly by a wide range of microcontrollers such as Arduino, AVR, PIC, ARM, 8051, and so on.

Package Includes:

  • 1 x 1CH Optocoupler Relay Board


Number of Channels 
Operating Voltage  12V
Dimensions  3 x 2 x 1cms 
Weight  5 grams

Shipping & Returns

  • All orders confirmed before 3 pm IST are shipped on the
    same day, barring rare pickup delays on holidays or disturbances
  • Delivery time in Metro cities is 1-3 days, Others it is
    3-7 days. It varies based on location, reliant on courier services
  • Return window: 7 days from receipt unless stated
    otherwise. No refunds/replacements after
  • Returns only for non-working/damaged products are accepted
  • Initiate return requests to our customer service team via Support ticket or contact us at +91-8123057137
  • Refunds are processed within 3-4 working days post inspection and approval.

For more details, please check our Shipping and Return Policy

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1. Is an optocoupler required for a relay?

  • Yes, Relays usually are driven using optocouplers, which offer isolation between the analog and digital grounds to ensure that switching currents in the relay coils do not affect the noise margin of the digital circuit.

2. What is a 1 channel 5V relay board?

  • The 1 Channel 5V Relay board provides a single relay that can be controlled by any 5V digital output from your microcontroller. Screw terminals are used to access the relay, which can handle up to 2A of current. The status of the relay is indicated by a handy LED.

3. Where can I use the single-channel relay board?

  • The Single Channel Relay board is a convenient board that can be used to control high voltage, and a high current load such as motor, solenoid valves, lamps, and AC loads. It is designed to interface with microcontrollers such as Arduino, PIC and etc.