The ITR8307/S17/TR8 is a reflective object sensor manufactured by Everlight Electronics Co., Ltd. This sensor combines an infrared (IR) emitter and a phototransistor in a single package, making it ideal for detecting the presence or absence of objects in close proximity. Its compact design and ease of use make it suitable for a wide range of applications.

Applications

• Object detection
• Line following robots
• Proximity sensing
• Paper detection in printers
• Vending machines
• Gaming consoles
• Industrial automation

Features

• Compact surface mount package
• Infrared (IR) emitter and phototransistor integrated
• High sensitivity
• Fast response time
• Operating temperature range suitable for various environments
• RoHS compliant

Benefits

• Simplified circuit design
• Space saving
• Reliable object detection
• Precise distance measurement (within a limited range)
• Easy integration into existing systems

Additional Details

The ITR8307/S17/TR8 reflective sensor operates by emitting infrared light from the IR emitter. When an object is present in front of the sensor, the infrared light is reflected back towards the phototransistor. The phototransistor then conducts current, indicating the presence of the object. The sensitivity of the sensor can be adjusted by varying the current through the IR emitter. The output signal from the phototransistor can be interfaced with a microcontroller or other electronic circuits for further processing. For specific electrical characteristics, such as forward voltage, collector-emitter voltage, and response time, consult the Everlight Electronics datasheet. Care should be taken to avoid ambient light interference, which can affect the sensor's performance. Shielding or filtering techniques may be necessary in environments with high ambient light levels. The sensor's performance is also dependent on the reflectivity of the target object, with higher reflectivity resulting in a stronger signal.