PC817 4-Channel 3.6V-30V Optocoupler Isolation Board Voltage Converter Module

Product Highlights

• Voltage Isolation: Provides complete electrical isolation between input and output circuits, protecting your microcontrollers (like Arduino, ESP32, Raspberry Pi) from potentially damaging voltage spikes or ground loops.
• Wide Voltage Range: Operates with input voltages from 3.6V to 24V and output voltages from 3.6V to 30V, making it compatible with a variety of sensors, actuators, and power supplies.
• Four Channel: Features four independent channels, allowing you to isolate and convert four separate signals simultaneously. Use different voltages on each channel!
• Onboard LED Indicators: Each channel has an LED indicator that illuminates when the input signal is active, providing visual feedback for easy troubleshooting.
• Selectable Ground Connection: Each channel includes a jumper that allows you to connect or disconnect the input and output grounds, providing flexibility for different isolation requirements. Remove the jumper for full isolation.

Applications

• Interfacing 24V industrial sensors with 5V or 3.3V microcontrollers.
• Isolating noisy signals in sensitive circuits.
• Protecting microcontroller inputs from high-voltage sources.
• General-purpose voltage level conversion.

Description

Isolate and protect your sensitive circuits with this versatile 4-Channel PC817 Optocoupler Isolation Module! This module provides a reliable and efficient way to convert input signals from one voltage level to another while maintaining complete electrical isolation. Perfect for a wide range of applications, from industrial automation to hobbyist electronics projects.

Detailed Specifications

• Optocoupler: PC817
• Number of Channels: 4
• Input Voltage: 3.6V - 24V DC
• Output Voltage: 3.6V - 30V DC
• Maximum Output (Emitter) Current: 50mA *
• Maximum Frequency: 4KHz
• Rise and Fall Times: 18us
• Input Pins:
  • IN1, IN2, IN3, IN4: +3.6V to 24V Signal Input
  • G: Ground (Input)
• Output Pins:
  • V1, V2, V3, V4: Phototransistor Collector (Output)
  • G: Phototransistor Emitter (Ground Output)

Important Note:

The PC817 optocoupler has a limited output current of 50mA. If your output circuit requires more than 50mA, you will need to use a transistor or other suitable driver to provide the necessary current. Do not directly connect high-current devices like motors to the optocoupler output.

Package Includes: 

1X (1 Piece) 4-Channel PC817 Optocoupler Isolation Module
Online installation and operating user guide