H21A1 Slotted Optical Interrupter Sensor – High-Precision IR Object Detection The H21A1 Slotted Optical Interrupter Sensor is a reliable and compact sensor designed to detect the presence or absence of an object by using infrared technology. This optical interrupter sensor integrates an infrared emitter and phototransistor within a single housing, making it ideal for space-constrained projects. It emits infrared light, and any interruption or reflection of this light is detected to determine object presence or movement. Engineered for efficient and precise performance, the H21A1 is widely used in automation, encoder systems, and reflective sensing applications. Its analog output allows for real-time monitoring, and its low power usage makes it suitable for battery-operated devices. With robust technical specifications and versatility, the H21A1 optical interrupter is a perfect fit for your electronic and automation projects. Features of H21A1 Optical Interrupter Sensor Compact Design: Integrated emitter and detector for space-efficient setups Infrared Emitter & Phototransistor: Offers accurate sensing using IR technology Analog Output: Delivers smooth and continuous signal for real-time monitoring Low Power Consumption: Suitable for energy-efficient and portable projects High Sensitivity: Ideal for close-range object and motion detection Versatile Applications: Use in robotics, automation, and encoder systems Technical Specification of H21A1 Optical Interrupter Sensor Configuration: Photo interrupter Peak Wavelength: 40 nm Gap Width: 3 mm Power Dissipation: 150 mW Maximum Collector Emitter Voltage: 30 V Maximum Emitter Collector Voltage: 5 V Maximum Collector Current: 20 mA Input Voltage: 1.2 Maximum Forward Current: 50 mA Maximum Rise Time: 8 us Maximum Fall Time: 50 us Applications H21A1 Optical Interrupter Sensor Object Detection: Ideal for detecting objects passing through the sensor’s slot in automated systems and robotics. Reflective Opto-Sensing: Used in barcode reading, label detection, and reflective surface detection using IR technology. Encoder Systems: Used in rotary and linear encoders to detect position and direction by sensing light interruptions Package Includes 1 x H21A1 Slotted Optical Interrupter Sensor Categories: Distance Sensors, Sensors
