PC817 Optocoupler – 4-Pin Phototransistor Opto-Isolator

Description

The PC817 is a widely-used 4-pin optocoupler (also known as an optical isolator) that provides effective electrical isolation between input and output. It consists of an infrared LED and a phototransistor housed in a compact DIP-4 package, making it ideal for protecting sensitive microcontroller inputs from high-voltage spikes and noise.

Features:

✔ Electrical Isolation – Provides safe signal transfer between high and low voltage circuits
✔ High-Speed Switching – Fast response for digital signal isolation
✔ Compact DIP-4 Package – Easy to mount on breadboards and PCBs
✔ Wide Compatibility – Works with Arduino, Raspberry Pi, ESP32, and other control boards
✔ Reliable & Cost-Effective – Perfect for both DIY and industrial applications

Specifications:

• Input Type: Infrared LED

• Output Type: Phototransistor

• Isolation Voltage: 5000 Vrms

• Collector-Emitter Voltage (Vce): 35V max

• Forward Current (If): 50mA max

• CTR (Current Transfer Ratio): 50% – 600%

• Package: DIP-4

Applications:

✅ Microcontroller Signal Isolation
✅ Switching Power Supplies
✅ Relay and Triac Drivers
✅ Industrial Automation
✅ DIY Electronics Projects

Protect your circuits and ensure safe, noise-free operation with the PC817 Optocoupler, available now on Nipetech.com!