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PC817 Optocoupler

The PC817 is a 4-pin optocoupler featuring an infrared LED and a phototransistor, providing electrical isolation between input and output circuits. It is ideal for signal isolation, noise reduction, and voltage level shifting in various electronic applications.

PC817 Optocoupler
₹274.74Buy Now

Specifications

Package Type: DIP-4 (Dual In-line Package) Input Diode Forward Voltage: 1.2V (Typical) at 20mA Collector-Emitter Voltage (Vceo): 80V (Max) Emitter-Collector Voltage (Veco): 6V (Max) Collector Current (Ic): 50mA (Max) Current Transfer Ratio (CTR): 200% to 400% Isolation Voltage: 5000Vrms Response Time: 4µs (Typical) Operating Temperature: -30°C to +100°C Pin Configuration: 4 Pins (Anode, Cathode, Emitter, Collector)

Details

The PC817 Optocoupler is a high-density photocoupler that integrates an infrared emitting diode (IRED) optically coupled to a silicon phototransistor. This component ensures safe electrical isolation, protecting sensitive microcontrollers and logic circuits from high-voltage spikes and noise in industrial environments. Key features include a high isolation voltage of up to 5000Vrms, a current transfer ratio (CTR) of 200-400%, and a compact DIP-4 package for easy PCB mounting. Common applications include switching power supplies (SMPS), motor control circuits, PLC interfaces, and communication line isolation. Buyers should choose the PC817 for its reliability, wide operating temperature range, and cost-effectiveness. It is a standard component for hobbyists and professionals alike, ensuring signal integrity and safety in demanding electronic designs.

Tags

OptocouplerPC817IsolationDIP-4PhototransistorSignal IsolationSMPSMicrocontroller

Alternatives

  • MCT2E Optocoupler
  • TLP621 Optocoupler
  • 4N35 Optocoupler
  • EL817 Optocoupler
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