This is a PCB board designed to build a single channel relay module with optocoupler input.
Specifications:
- Size-56x29mm
- Input signal type -Active high
- All components are Through hole type
- OPTO COUPLER -EL817 OR PC817 4 PIN
- Use 1K resistor for 5 voltage relay application (2.2k for 12V)
- Capacitor 1 -1uF or 100NF ceramic capacitor with 5mm pitch
- Capacitor 2 -100uF 25V electrolytic capacitor with 2.54mm pitch
- LED size -3mm
- Transistor BC547 or BC546 or BC548
- Terminal block connector -xy126 or zb126 or xy128 or zb128 with 5mm pitch
- Relay- normal sugar cube
Specifications
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