The PC817-1 is a single-channel phototransistor optocoupler manufactured by Sharp Microelectronics. This optocoupler is designed to provide electrical isolation between two circuits while allowing signal transfer. It consists of an LED and a phototransistor, allowing for safe and reliable data transmission across different voltage levels.
Applications
- Microcontroller input isolation
- Power supply feedback isolation
- Noise isolation in data communication
- Signal transmission in industrial control systems
- Interface between different voltage domains
Features
- Electrical Isolation: Provides high voltage isolation between input and output circuits.
- Single Channel: Contains one optocoupler channel.
- Phototransistor Output: Uses a phototransistor as the output device.
- Compact Package: Small package size for space-saving designs.
- RoHS Compliant: Environmentally friendly and compliant with RoHS standards.
- High Current Transfer Ratio (CTR): Efficient signal transfer between input and output.
Benefits
- Enhanced Safety: Provides electrical isolation, protecting sensitive circuits from high voltage damage.
- Noise Immunity: Isolates noise and interference from the input circuit, improving signal quality.
- Improved System Reliability: Prevents ground loops and minimizes the risk of electrical damage.
- Versatile Application: Suitable for a wide range of isolation applications in various electronic circuits.
- Simplified Design: Easy to integrate into existing circuits with minimal design changes.
Additional Details
The PC817-1 optocoupler is constructed using a gallium arsenide (GaAs) infrared emitting diode and a silicon NPN phototransistor. It is available in a standard DIP package. The optocoupler is supplied in tube or tape and reel packaging for automated assembly.
Technical Specifications:
- Isolation Voltage: 5000 Vrms
- Current Transfer Ratio (CTR): 50% to 600%
- Forward Current (IF): 50 mA
- Collector-Emitter Voltage (VCEO): 80 V
- Operating Temperature Range: -30°C to +100°C
