The ITR8402 is a reflective object sensor from Everlight Electronics Co Ltd. It integrates an infrared emitting diode and a phototransistor in a single package. This sensor detects the presence or absence of an object by measuring the amount of infrared light reflected back to the phototransistor.

Applications:

• Object detection
• Line following robots
• Edge detection
• Position sensing
• Vending machines
• Printers
• Copiers
• Automated dispensing systems

Features:

• Reflective Object Sensor: Detects objects based on infrared reflection.
• Integrated IR LED and Phototransistor: Simplifies circuit design and reduces component count.
• Compact Package: Allows for use in space-constrained applications.
• High Sensitivity: Provides reliable detection of objects with varying reflectivity.
• Fast Response Time: Enables accurate detection of moving objects.

Benefits:

• Simple Object Detection: Provides a straightforward solution for object detection applications.
• Compact Design: Integrated components and small package size enable compact designs.
• Reliable Performance: High sensitivity and fast response time ensure reliable object detection.

Additional Details:

The ITR8402 operates by emitting infrared light from the LED. When an object is present within the sensor's range, some of the light is reflected back to the phototransistor. The amount of reflected light is proportional to the object's reflectivity and distance. The phototransistor converts the light into a current, which can be measured by an external circuit. The sensor is typically used in applications where non-contact object detection is required. The small size and integrated components make it easy to integrate into various systems. The package type is a through-hole package.