5V 8-Channel Infrared Remote Control Relay Module

5V 8-Channel Infrared Remote Control Relay Module offers a convenient and isolated solution for remotely switching high-power AC and DC loads using a standard infrared (IR) remote. This robust module integrates an 8-channel relay board with a built-in IR receiver and decoding circuitry, allowing you to control eight separate channels independently using the included remote control or any compatible NEC-encoded remote. The relays utilize optocoupler isolation, which protects the low-voltage control circuitry from high-voltage load transients. Therefore, you can safely interface this module with microcontrollers, Arduino, or other 5V logic systems without complex wiring or custom decoding libraries. Furthermore, this plug-and-play functionality makes the module an ideal choice for quick prototyping and reliable deployment in home automation and industrial control projects.

Key Features:

• 8 Independent Channels: Features eight electromechanical relays, enabling separate control of up to eight different high-power devices or circuits.
• Infrared Control: Includes an integrated IR receiver and decoder compatible with the common NEC encoding protocol, offering wireless remote control capability out of the box.
• High Load Capacity: Each relay channel handles currents up to 10 A at 250 V_AC or 30 V_DC, suitable for switching lights, motors, and appliances.
• Optocoupler Isolation: Utilizes optoisolators to electrically separate the 5V control logic from the relay coil drive circuitry, ensuring protection against electrical noise and spikes.
• Status Indicators: Provides clear LED indicators for power (VCC) and for the active status of each of the eight relays, simplifying debugging.

Technical Specifications:

• Control Voltage (V_CC): 5 V_DC (Nominal)
• Quiescent Current: ≈ 5 mA
• Max Current (All Relays ON): ≈ 160 mA
• Max Load Voltage (AC): 250 V_AC
• Max Load Voltage (DC): 30 V_DC
• Max Load Current per Channel: 10 A
• Relay Type: Single Pole, Double Throw (SPDT) via terminal block (NC/COM/NO)
• IR Protocol: NEC (Typically 12-bit address, 8-bit command)

Mechanical Specifications:

• Relay Type: High-quality electromechanical power relays.
• Wiring Connection: Screw terminal blocks for secure, high-current load connections.
• Mounting: Includes mounting holes for fixed installation in enclosures or panels.
• Component Material: FR-4 PCB with robust tracks for power handling.

Dimensions:

• Board Length: ≈ 140 mm
• Board Width: ≈ 55 mm
• Height (Incl. Relays): ≈ 18 mm
• Mounting Hole Diameter: ≈ 3.0 mm

Pinout and Wiring:

• VCC: Connect to 5 V_DC power supply.
• GND: Connect to the power supply ground.
• IN Pins (Optional): Some versions include optional trigger pins (IN1-IN8) for manual or microcontroller control alongside IR input.
• Load Connections: Each relay features a 3-pin screw terminal block: NC (Normally Closed), COM (Common), and NO (Normally Open).
• Wiring Note: Always connect the load to the COM and either NO (for standard operation) or NC (for reverse logic operation) terminals, depending on your circuit needs.

Datasheet Reference:

• Download Typical 5V Relay (JQC-3F) Datasheet Reference

Commonly Used in:

• Home Automation Systems: Remote control of ceiling lights, fans, and wall sockets without physical wiring modifications.
• DIY Robotics and Projects: Switching high-current motors, solenoids, or high-intensity LEDs from a distance.
• Educational Electronics: Provides students and hobbyists with a safe way to interface low-voltage systems with AC power.

Applications:

• Lighting Control: On/off switching of multiple light circuits via remote control.
• Appliance Control: Remotely powering on/off small kitchen appliances or entertainment devices.
• Security and Access: Driving electronic door locks or gate openers. In addition, you can use it for controlling sprinkler systems.

Equivalent Models:

• Wi-Fi/Bluetooth Relay Modules: Functionally similar remote control options, however, they utilize different wireless protocols (e.g., ESP8266-based modules).
• 4-Channel IR Relay Modules: Smaller versions offering half the switching capacity, but using the same basic IR control principle.
• Relay Boards without IR: Standard 8-channel relay boards (e.g., SainSmart) that require direct connection to a microcontroller for manual control signals.

Package Includes:

• 1 x 5V 8-Channel Infrared Remote Control Relay Module
• 1 x IR Remote Control (Mini type, battery usually not included)