The PC817 Optocoupler links two circuits with light instead of wires, keeping your low-voltage microcontroller safely isolated from mains or noisy high-voltage sides. Essential for safe interfacing.
Key Features
- Optical isolation between circuits
- Protects your MCU side
- Standard 4-pin DIP
- Fast, reliable
- Common in relay/mains projects
Specifications
| Type | phototransistor optocoupler |
| Package | DIP-4 |
| Isolation | 5 kV |
Popular Project Ideas
- Isolate mains from Arduino
- Zero-cross / triac control
- Signal isolation
- Safe interfacing
Buy it from Arduino Corner — Pakistan’s dedicated Arduino, robotics & electronics store in Rawalpindi. Genuine parts at the best prices, tested before dispatch, COD across Pakistan.
