Arduino Tutorial: 2-Channel Optocoupler Relay Module
Experiment: 2-Channel Relay Module with Optocoupler Protection for Arduino Expansion Boards PC817 The optocoupler is extensively utilized in computer terminals, thyristor control devices, measuring instruments, copiers, automatic ticketing systems, and household appliances like fans and heaters for transmitting signals between circuits. It provides complete isolation between the input and the load, enhancing safety, minimizing circuit interference, and simplifying circuit design. Main Parameters: Optocoupler Current Transfer Ratio: 50% (minimum) High Isolation Voltage: 5000V (rms) Compliance with UL standards Limiting Parameters: Reverse Current (ICEO): 50mA Peak Forward Current (ICE max): 1A Reverse Voltage: 6V Power Consumption: 70mW Collector-Emitter Voltage: 35V Emitter-Collector Voltage: 6V Collector Current: 50mA Collector Power Dissipation: 150mW Total Power Dissipation: 200mW Operating Temperature: -30°C to +100°C Collector-Emitter Saturation Voltage: 0.1V (typical) Cutoff Frequency: 80kHz Current Transfer Ratio: 50%-600% Package: DIP-4
2-Channel Optocoupler Relay Module
Main Parameters: Optocoupler Current Transfer Ratio: 50% (minimum) High Isolation Voltage: 5000V (rms) Compliance with UL standards Limiting Parameters: Reverse Current (ICEO): 50mA Peak Forward Current (ICE max): 1A Reverse Voltage: 6V Power Consumption: 70mW Collector-Emitter Voltage: 35V Emitter-Collector Voltage: 6V Collector Current: 50mA Collector Power Dissipation: 150mW Total Power Dissipation: 200mW Operating Temperature: -30°C to +100°C Collector-Emitter Saturation Voltage: 0.1V (typical)
80kHz Current Transfer Ratio: 50%-600% Package: DIP-4
Module Electrical Schematic
Electrical Parameters:
Supply Voltage: 5VDC
Current: Greater than 100mA
Load: 250V 10A AC or 30V 10A DC
Wiring Instructions: VCC: System power supply positive GND: System power supply negative IN1—IN2: Relay control ports (Please do not reverse the connection to avoid damaging the module)
Experiment Open Source Graphic Programming
Tag：Optocoupler Relay Module;PC817;Electronic components
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