TCRT5000 Reflective Infrared Sensor (Optical Object Detector)

The TCRT5000 Reflective Infrared Sensor is an optical sensing component that combines an infrared emitting diode and a phototransistor in a single package. The emitter projects infrared light toward a nearby surface, while the phototransistor detects the reflected light. Changes in the detected light intensity can be used to identify object presence, distinguish surface reflectivity and detect movement.

This sensor is commonly used in robotics, line following systems, position detection and embedded electronics projects. Detection performance depends on the distance, surface colour, reflectivity and surrounding light conditions.

Key Features -

• Integrated infrared emitter and phototransistor

• Reflective optical sensing without physical contact

• Infrared emitter wavelength of approximately 950nm

• Suitable for short range object and surface detection

• Analog phototransistor response for external signal processing

• Compact leaded package for PCB mounting

• Useful for line following and position sensing applications

Specifications -

• Sensor Type: Reflective infrared optical sensor

• Model: TCRT5000

• Sensing Method: Infrared reflection

• Emitter Wavelength: Approximately 950nm

• Peak Operating Distance: Approximately 2.5mm under specified test conditions

• Detection Range: Depends on surface reflectivity and installation

• Output Type: Phototransistor

• Package Type: Leaded reflective sensor

• Mounting Type: Through hole

• Operating Temperature: Negative 25 C to positive 85 C, subject to datasheet confirmation

• Electrical ratings: Verify emitter current, collector current and voltage limits using the manufacturer datasheet

Applications -

• Line following robots

• Black and white surface detection

• Object and proximity detection

• Position sensing and optical encoders

• Paper presence detection

• Counting and movement detection

• Industrial automation

• Arduino and microcontroller projects