Photo Transistor


Photo Transistor


SKU: SEN-045 - Mfg Part Number: QRD1113


A phototransistor is effectively a transistor that responds to light. This specific phototransistor has a built in infrared LED and works really well as a reflectance sensor. It is ideal for detecting the difference between black and white surfaces or general object detection up to 10mm.

To use this phototransistor a simple current limiting resistor rated at 330 ohms is required on the infrared LED side with a 10K ohm resistor as a pull up on the transistor side.


  • Sensing Distance: 1.27mm / 0.05″
  • Voltage (Max): 30V
  • Sensing Method: Reflective
  • Current (Max): 50mA


In stock (can be backordered)

SKU: SEN-045. Categories: , . Tags: , , , .
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Additional information

Weight 1 g


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