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Photo interrupter (OS25B10)

The OS25B10 is a high performance standard type photo interrupter, which combines high output GaAlAs infrared light emitting diode and high sensitive phototransistor.


  • 10mm space for interruption

  • Easy to mount on PCB

  • High-speed response

  • Widely applicable

Application Ideas

  • Tape-end sensors

  • Timing sensors

  • Edge sensors

  • copiers


Maximum Ratings (Ta=25℃)

Item Symbol Rating Unit
InputPower DissipationPD80mW
Reverse VoltageVR5V
Forward CurrentIF50mA
Pulse Forward current * 1IFP1A
OutputCollector Power DissipationPc100mW
Collector CurrentIc20mA
C-E VoltageVCEO30V
E-C VoltageVECO5V
Operating TemperatureTopr -25~+65
Storage TemperatureTstg -25~+85
Soldering Temperature *2Tsol240

Electro-optical Characteristics (Ta=25℃)

Item Symbol Conditions Min Typ Max Unit
InputForward VoltageVFIF=20mA1.21.6V
Reverse CurrentIRVR=5V10µA
Peak WavelengthλP940nm
OutputCollector Dark CurrentICEOVCE=10V1100nA
Light CurrentILVCE=5V,IF=20mA12.5mA
C-E Saturation VoltageVCE(sat)IF=20mA,Ic=0.5mA0.20.4V
Switching SpeedsRise TimetrVcc=10V, Ic=5mA, RL=100Ω5µsec
Fall Timetf5µsec

Mechanic Dimensions


The resources need to be downloaded, like Eagle file, Demo code, project or other datasheet.

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