PC817 Optocoupler (Opto-Isolator IC)SKU 13010-1

Transistors & IC

PC817 Optocoupler (Opto-Isolator IC)

₹29

01 — About

What it does

The PC817 Optocoupler provides electrical isolation between circuits using an infrared LED and phototransistor. It transfers signals across an isolation barrier while preventing high-voltage interference from damaging sensitive electronics.

Key features

  • Optical isolation between input and output
  • 5000V isolation rating
  • Infrared LED + phototransistor
  • DIP-4 package
  • Low cost isolation solution
  • No electrical connection between sides
  • Wide operating temperature range

Good to know

  • LED side needs current-limiting resistor like standard LED
  • Phototransistor side needs pull-up resistor
  • Switching speed limited (~4-18μs) – not for high-speed data
  • CTR varies with temperature and LED current
  • Can be used as solid-state relay for low-current switching

02 — Datasheet

Specifications

08
Type
Optocoupler
Isolation Voltage
5000Vrms
CTR
50-600%
Output Type
Phototransistor
Package
DIP-4
Forward Current
50mA max
VCEO
35V
IC
50mA max output