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4N25 OptoCoupler Optoisolator Phototransistor DIP IC in Pakistan

₨32 ₨25

  • IR LED Forward Voltage for turning ON: 1.25V-1.5V (Typically 1.3V, 1.5V being absolute  maximum forward voltage)
  • IR LED Forward Current during ON: 10mA – 60mA (Typically 10mA, 60mA being absolute maximum forward current)
  • IR LED Reverse Voltage Maximum: 5V
  • IR LED Reverse Current Maximum: 100uA
  • Maximum voltage across COLLECTOR and EMITTER of TRANSISTOR: 70V
  • Maximum current allowed trough TRANSISTOR COLLECTOR: 100mA
  • Typical Rise Time: 2us
  • Typical Fall Time: 2us


4N25 OPTOCOUPLER IC has two components integrated in it. One is INFRARED DIODE and another of INFRARED PHOTOTRANSISTOR. The IR DIODE is connected between terminals 1 and 2, the PHOTOTRANSISTOR is connected at terminals 4, 5 and 6.The internal setup of two components can be seen below. The IR radiation emitted by IR LED will not be visible outside the chip. The whole issue of radiation will be working under background.


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