Optocoupler JC817 (Photocoupler)

An optocoupler (opto-isolator) is useful in isolating two separate circuits while still allowing the input-side circuit to control the output-side circuit.

Optocouplers are often used to allow a microcontroller control motors, servos, LEDs, or other circuits or modules that use a different voltage than the logic level voltage on the microcontroller. Another common use is as an electrical noise barrier to isolate sensitive control circuits such as the I/O pins on a microcontroller from loads or circuits that have or can create electronic noise or spikes such as relay coils and motors.

Specifications

• Voltage Isolation: 5000 V RMS
  
• Input Forward Current: 50 mA
  
• Input Forward Voltage: 1.2 ~ 1.4 V
  
• Output Collector Current: 50 mA
  
• Output Emitter-Collector Voltage: 6 V
  
• Output Collector-Emitter Voltage: 70 V
  
• Cut-Off Frequency: 80 kHz
  
• Output Power Dissipation: 150 mW
  
• Operating Temperature: -55°C to +100°C
  
• Package: DIP-4
  
• Dimensions (excluding pins):
  
  • Length: 6.63 mm (0.26")
    
  • Width: 4.65 mm (0.19")
    
  • Height: 3.5 mm (0.14")

Resources

• JC817 Datasheet

Pinout