Reliable Signal Isolation with PC817 Optocoupler Module
The PC817 1-Channel Optocoupler Module gives you safe, galvanic separation between control electronics and higher-voltage circuits. It uses an LED input and a phototransistor output to transfer signals while blocking direct electrical connection, protecting microcontrollers, sensors and other sensitive devices from spikes and interference.
How the PC817 Optocoupler Works
- Input side: an LED converts the input electrical signal into light.
- Isolation barrier: light travels across an optically coupled gap, maintaining electrical isolation.
- Output side: a phototransistor detects the light and recreates the signal for the receiving circuit.
Key Features
- 1-channel isolation module based on the PC817 optocoupler IC.
- Compatible with 5V and 12V input systems for flexible applications.
- High-speed switching suitable for data and control signals.
- Compact module design for easy mounting on breadboards and PCBs.
- Protects devices from electrical noise, ground loops and voltage spikes.
Typical Applications
- Arduino and microcontroller interfaces
- Home automation and IoT control circuits
- Robotics and motor-driver isolation
- Relay control and switching circuits
- Industrial control signals and PLC interfacing
Quick Hookup Guide
- Connect the input to your control signal through a suitable series resistor (calculate resistor based on your supply voltage and desired LED current).
- Connect the module output to the receiving device (ensure correct polarity and pull-up/pull-down as required by your circuit).
- Keep grounds isolated when full galvanic separation is required; follow your system grounding plan carefully.
- Always verify connections and consult the PC817 datasheet for absolute maximum ratings and timing characteristics.
Specifications and Compatibility
- Channel count: 1-channel optocoupler module
- Voltage compatibility: designed for 5V and 12V control signals
- Isolation voltage: up to 5000 Vrms (typical for PC817 devices)
- Interface: input LED – output phototransistor
- Mounting: compact board footprint for prototyping and integration
Benefits of Using the PC817 Optocoupler Module
- Improved safety: prevents dangerous voltages from reaching your control electronics.
- Enhanced signal integrity: reduces interference and ground loop issues.
- Versatility: works across hobbyist and light industrial projects.
- Cost-effective: affordable protection without complex circuitry.
Buy Online in Pakistan
Order the PC817 1-Channel Optocoupler Module today to protect and improve your electronics projects. Ideal for Arduino, robotics, home automation and industrial control. Shop online and get fast delivery across Pakistan.
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