Infrared Reflective Sensor TCRT-5000



The TCRT-5000 sensor is just a combination of a photo diode and a photo transistor. The photo diode is powered through a current limiting resistor of value 220 R and the Transistor is also grounded through a 10 K resistor. The transistor does not have a base pin because the biasing of the transistor is controlled by the amount of IR light it receives.


  • Commonly used in proximity detection applications
  • Line follower or maze solver robots
  • Distinguish between reflective and non-reflective surface
  • Obstacle detection and avoidance


  • IR sensor with transistor output
  • Operating Voltage: 5 V
  • Diode forward Current: 60 mA
  • Output: Analog or digital data
  • Transistor collector current: 100 mA (maximum)
  • Operating temperature: -25°C to +85°C
  • Additional information
  • Gross weight: 14 g
  • Manufacturer part number: TCRT-5000


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