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QRE1113GR

ONQRE1113GR

onsemi
Reflective Optical Sensor 0.039" (1mm) 4-SMD, Gull Wing
Active62,057 in stock
Datasheet Digi-Key Compare Prices

Overview

The QRE1113GR is a miniature reflective optical sensor consisting of an infrared emitting diode and a phototransistor in a compact SMT package. It is designed for close-range detection with an optimal sensing distance of 0.039 inches (1mm) and features a phototransistor output that varies based on the amount of light reflected back to the sensor. This component is ideal for non-contact object detection and position sensing in space-constrained applications.

Why Choose This Part

The SMT gull-wing package offers a significant footprint reduction compared to through-hole variants, making it suitable for high-density PCBs. Its 20 microsecond response time allows for high-speed switching and pulse detection. The integrated daylight filter helps minimize interference from ambient light sources to improve signal reliability.

Applications

Line Following Robots
Used in arrays to detect high-contrast lines on the ground for autonomous navigation.
Rotary Encoder Disk Sensing
Detects the passage of black and white segments on a codewheel to measure motor rotation or speed.
Paper Edge Detection
Identifies the presence and alignment of paper in printers, scanners, and automated document feeders.
Close-Range Proximity
Triggers system actions when an object or surface is within its 1mm sensing range.

Key Specifications

Output Type Phototransistor
Mounting Type Surface Mount
Response Time 20us, 20us
Package / Case 4-SMD, Gull Wing
Sensing Method Reflective
Sensing Distance 0.039" (1mm)
Current - Collector (Ic) (Max) 20 mA
Current - DC Forward (If) (Max) 50 mA
Voltage - Collector Emitter Breakdown (Max) 30 V

Getting Started

To integrate this sensor, drive the IR LED with a constant current using a series resistor, typically targeting a forward current below the 50mA maximum. Connect the phototransistor collector to a pull-up resistor to create a voltage divider, allowing the signal to be read by a standard microcontroller ADC or digital input pin. Ensure the target surface is positioned approximately 1mm away from the sensor face for peak sensitivity.

QRE1113 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Package Stock
QRE1113GR (this part) SMD-4 62,057
QRE1113 DIP-4 26,319