PC817 Photocoupler Datasheet

PC817 Photocoupler

PC817 Introduction

PC817 photocoupler is an electronic component used for isolation amplification and signal transmission in various applications. It is a type of optocoupler that consists of an infrared light-emitting diode (LED) and a phototransistor or photodiode, enclosed in a single compact package. The LED emits light, which is then detected by the phototransistor or photodiode, causing a change in the output signal. This component is widely used in circuits that require electrical isolation, such as in power supplies, motor control, and audio equipment. The PC817 photocoupler is designed to withstand high temperatures and has a long lifespan, making it a reliable choice for many applications.

PC817 Pinout

PC817 Pinout

PC817 Features

  • High isolation voltage between input and output
  • Compact dual-in-line package
  • Low input current and a high transfer ratio
  • Available in various package types
  • Compatible with TTL, CMOS, and other digital logic families
  • Meets various safety standards, including UL, RoHS, CSA, and VDE.

PC817 Parameters

Current Transfer Ratio50% (minimum)
High Isolation Voltage5000V (RMS)
Forward Current (ICEO)50mA
Peak Forward Current (ICE max)1A
Reverse Voltage6V
Power Dissipation70mW
Collector-Emitter Voltage35V
Emitter-Collector Voltage6V
Collector Current50mA
Collector Power Dissipation150mW
Total Power Dissipation200mW
Operating Temperature-30°C to +100°C
Collector-Emitter Saturation Voltage0.1V (typical)
Cutoff Frequency80kHz
Current Transfer Ratio Range50% to 600%
PackageDIP-4, SOP-4, and SSOP-4

PC817 Applications

  • Computer terminals
  • System appliances, measuring instruments
  • Registers, copiers, automatic vending machines
  • Electric home appliances, such as fan heaters
  • Thyristor system equipment
  • measuring instrument
  • photocopier
  • Automatic ticketing equipment
  • Signal transmission between circuits of different potentials and impedances

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