QRD1114 Reflective Object Sensor (QRD1114 Optical Sensor)
The QRD1114 Reflective Object Sensor is a compact infrared optical sensor designed for non contact object detection and surface sensing. It integrates an infrared emitting diode and an NPN phototransistor mounted side by side in a single package, enabling detection of reflected IR light from nearby objects. This sensor provides fast response, stable output, and reliable performance in close range sensing applications.
The QRD1114 sensor is widely used in India for embedded systems, line following robots, object detection modules, and industrial electronics. It is valued for its compact size, accurate proximity sensing, and ability to detect differences between reflective surfaces such as black and white materials.
Key Features
- Reflective IR Sensing: Detects objects using reflected infrared light
- Integrated Emitter and Detector: IR LED and phototransistor in one package
- Non Contact Detection: Reliable surface sensing without physical contact
- Fast Response Time: Suitable for high speed detection
- Compact Design: Ideal for space constrained applications
- Suitable for Embedded Systems and Industrial Electronics
Specifications
- Sensor Type: Reflective optical sensor
- Sensing Method: Infrared reflection
- Output Type: Phototransistor analog output
- Sensing Distance: Approx 1.27mm
- Wavelength: Around 940nm
- Operating Voltage: Typically used with 5V circuits
- Forward Current: Up to 50mA
- Collector Emitter Voltage: Up to 30V
- Response Time: Approx 10us to 50us
- Operating Temperature: -40 to 85 degree C
- Package Type: 4 pin radial through hole
- Applications: Line follower robots object detection position sensing industrial electronics embedded systems
Pinout Configuration Sensor Layout
- Collector pin of phototransistor
- Emitter pin of phototransistor
- Anode pin of IR emitter
- Cathode pin of IR emitter
