The TCDT1023 is a transmissive optical sensor from Vishay Semiconductors, comprising an infrared emitting diode and an NPN silicon phototransistor, positioned facing each other. An object passing between them interrupts the IR beam, triggering a change in the phototransistor's output. This is suited for non-contact object detection and motion sensing.

Applications

• Object Detection: Detects the presence or absence of an object.
• Position Sensing: Used for position detection.
• Motion Control: Used in motion control feedback loops.
• Robotics: Employed in robotics for obstacle avoidance and part counting.
• Printers: Paper detection and jam sensing.
• Coin Acceptors: Object detection within coin or token acceptors.

Features

• Transmissive Sensor: Emitting diode and detector are directly opposed.
• Compact Package: Small size for integration into constrained spaces.
• High Sensitivity: Capable of detecting small or opaque objects.
• Fast Response Time: Quick reaction to interruptions of the IR beam.
• Operating Temperature Range: Designed to operate reliably across a broad temperature range.
• Through-Hole Mounting: Designed for through-hole PCB mounting.

Benefits

• Non-Contact Detection: Prevents wear and tear on the sensed object.
• Reliable Performance: Provides consistent output under varying environmental conditions.
• Easy to Use: Simple to interface with standard electronic circuits.
• Versatile: Suitable for use in many different detection applications.
• Cost-Effective: Economical solution for optical sensing needs.

Additional Details

The TCDT1023 requires a supply voltage typically around 5V. Key specifications include the forward current for the IR diode, the collector current for the phototransistor, and the operating temperature range. It is important to consult the datasheet for the recommended operating conditions and maximum ratings to ensure reliable performance and prevent damage to the component. The distance between the emitter and detector is a critical factor for sensitivity. External components, such as resistors, are generally required to limit current and provide appropriate voltage levels for the sensor.