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: 4.6