PC817 2 Channel Optocoupler Isolation Board

The PC817 2 Channel Optocoupler Isolation Board is a reliable and essential electronic module designed to provide electrical isolation between control circuits and high-voltage or noisy environments. This board uses PC817 optocoupler ICs, which are widely recognized for their stability, safety, and effectiveness in isolating digital signals.

Electrical isolation is crucial in modern electronics to protect sensitive microcontrollers such as Arduino, ESP8266, ESP32, STM32, and PLC systems from voltage spikes, ground loops, and electromagnetic interference. The PC817 isolation board ensures that control signals are transmitted safely without direct electrical contact between input and output circuits.

With two independent isolation channels, this board is ideal for projects requiring multiple signal protections while maintaining compact size and easy wiring.

Key Features of PC817 Isolation Board

• Dual channel optocoupler isolation

• Based on reliable PC817 IC

• Supports wide input voltage range

• Protects microcontrollers from high voltage

• Reduces electrical noise and interference

• Compact and durable PCB design

• LED status indication

• Easy screw terminal or pin connection

• Suitable for industrial and DIY use

• Long operational lifespan

Technical Specifications

Optocoupler IC: PC817
Number of Channels: 2
Input Voltage Range: 3.3V to 24V
Output Type: Transistor (Open Collector)
Isolation Voltage: High isolation capability
Input Type: Logic signal
Output Load Type: Relay, PLC input, MCU pin
PCB Material: FR4
Operating Temperature: Industrial standard range
Mounting Type: Through-hole / PCB module

Working Principle of PC817 Optocoupler

The PC817 optocoupler works by using an internal infrared LED and a phototransistor. When a signal is applied to the input side, the LED lights up. The emitted light activates the phototransistor on the output side.

Since the signal is transferred using light instead of direct electrical connection, there is complete isolation between the input and output circuits. This protects sensitive electronics from voltage spikes, ground differences, and electrical noise.

Importance of Signal Isolation

Signal isolation is critical in many electronics applications, including:

• Preventing microcontroller damage

• Avoiding ground loop issues

• Reducing EMI and noise

• Improving system stability

• Ensuring user safety

The PC817 isolation board provides a simple and cost-effective solution for achieving these goals.

Applications of PC817 2 Channel Isolation Board

This module is widely used in:

• Arduino and microcontroller projects

• PLC input isolation

• Relay driver isolation

• Industrial automation systems

• Motor control circuits

• Inverter signal protection

• Sensor signal conditioning

• CNC controller interfaces

• Power supply feedback isolation

• Educational electronics labs

Compatibility with Microcontrollers

The PC817 isolation board is compatible with:

• Arduino UNO, Mega, Nano

• ESP8266 and ESP32 boards

• STM32 development boards

• Raspberry Pi GPIO interfaces

• PLC control systems

It supports both 3.3V and 5V logic, making it flexible for modern embedded platforms.

Dual Channel Advantage

With two isolated channels, this board allows:

• Independent signal isolation

• Control of multiple devices

• Reduced wiring complexity

• Efficient use of PCB space

This is especially useful in automation systems where multiple signals need protection.

Noise Reduction and Stability

In environments with motors, relays, or high-power switching devices, electrical noise can disrupt logic signals. The PC817 optocoupler effectively blocks noise transmission, ensuring stable and reliable signal communication.

Installation and Usage Guidelines

• Ensure correct input polarity

• Use appropriate input resistor if required

• Do not exceed rated input voltage

• Verify output logic before connection

• Keep high-voltage lines isolated

Proper installation ensures long-term safe operation.

Educational and DIY Benefits

The PC817 isolation board is ideal for:

• Learning optocoupler fundamentals

• Understanding electrical isolation

• Building safe electronics projects

• Training in industrial control systems

It is widely used in universities and technical institutes.

Advantages of PC817 Isolation Board

• Simple and reliable design

• Strong electrical isolation

• Low cost and high efficiency

• Wide voltage compatibility

• Easy integration into circuits

Limitations

The PC817 is designed for signal isolation and is not suitable for high-speed data communication. For very high-frequency signals, specialized optocouplers are recommended.

Why Choose PC817 2 Channel Optocoupler Board

• Industry-standard optocoupler

• Proven reliability

• Excellent protection for MCUs

• Ideal for automation and control

• Great value for money

Why Buy from Electroxbd

• Original and tested modules

• Reliable electronics components

• Fast delivery across Bangladesh

• Competitive pricing

• Technical support available

• Trusted Source for Reliable Electronic Parts

Buy PC817 2 Channel Optocoupler Isolation Board in Bangladesh

Order the PC817 2 Channel Optocoupler Isolation Board today from Electroxbd to protect your microcontrollers and ensure safe, noise-free signal transmission.

Office Address:
H#1/1, In Opposite of RH Chhatrabash, Madrasa More, Debisingpara, Boalia, Rajshahi, Bangladesh

Contact: 01600334238
Website: www.electroxbd.com

Electroxbd – Trusted Source for Reliable Electronic Parts.

Common Questions:

Q: What is the price of PC817 2 Channel Optocoupler Isolation Board in Bangladesh?

A: The latest price of PC817 2 Channel Optocoupler Isolation Board in Bangladesh is 180 BDT.

Q: Where to buy PC817 2 Channel Optocoupler Isolation Board in Bangladesh?

A: You can buy the PC817 2 Channel Optocoupler Isolation Board at the best price from ElectroXBD in Bangladesh.