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Phototransistor Optocouplers
○R
PC817
General Description
The PC817 contains a light emitting diode optically coupled to a phototransistor.It is a packaged in a 4-pin DIP package.Input-output isolation voltage is 5000Vrms,Response time,tr,is typically 4μs and minimum CTR is 50% at input current of 5mA.
Characteristics
● Current transfer ratio(CTR:MIN.