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
Input Power Dissipation PD 80 mW
Reverse Voltage VR 5 V
Forward Current IF 50 mA
Pulse Forward current * 1 IFP 1 A
Output Collector Power Dissipation Pc 100 mW
Collector Current Ic 20 mA
C-E Voltage VCEO 30 V
E-C Voltage VECO 5 V
Operating Temperature Topr -25~+65
Storage Temperature Tstg -25~+85
Soldering Temperature *2 Tsol 240

Electro-optical Characteristics (Ta=25℃)

Item Symbol Conditions Min Typ Max Unit
Input Forward Voltage VF IF=20mA 1.2 1.6 V
Reverse Current IR VR=5V 10 µA
Capacitance Ct f=1MHZ 25 pF
Peak Wavelength λP 940 nm
Output Collector Dark Current ICEO VCE=10V 1 100 nA
Light Current IL VCE=5V,IF=20mA 1 2.5 mA
C-E Saturation Voltage VCE(sat) IF=20mA,Ic=0.5mA 0.2 0.4 V
Switching Speeds Rise Time tr Vcc=10V, Ic=5mA, RL=100Ω 5 µsec
Fall Time tf 5 µsec

Mechanic Dimensions


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

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