L14F1( Eq. ) NPN Phototransistor ST-1KL3B

SKU: VS00038

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The ST-1KL3B are high-sensitivity NPN silicon phototransistors mounted in durable, hermetically sealed TO-18 metal can which provide years of reliable performance, even under demanding conditions such as use outdoors.

 Technical Specification:

  • C-E voltage :40V
  • E-C voltage : 6V
  • Collector current :50mA
  • Collector Power Dissipation :150mW
  • Operating temperature: - 30 ~ +100°C
  • Storage temperature: - 50 ~ +150°C
  • Soldering temperature: 260°C


  • Narrow angular response
  • Durable
  • High reliability in demanding environments
  • Three leads (Collector, Emitter, Base) ST1KL3B

Pin Description:



  • Optical switches
  • Optical detectors
  • Infrared sensors
  • Encoders
  • Smoke detectors

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