TT Electronics/Optek Technology
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OPB742
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OPB742 Encyclopedia Entry

Product Overview

The OPB742 belongs to the category of optical sensors and is commonly used for detecting the presence or absence of an object. Its characteristics include high sensitivity, compact size, and reliable performance. The package typically includes the sensor itself along with any necessary mounting hardware and connectors. The essence of the OPB742 lies in its ability to accurately detect objects within its range. It is usually available in standard packaging with a specific quantity per package.

Specifications

  • Operating Voltage: 4.5V to 5.5V
  • Output Type: Phototransistor
  • Sensing Distance: Up to 0.125 inches (3.18mm)
  • Operating Temperature Range: -40°C to 85°C
  • Package Type: Through Hole
  • Package Quantity: 1 unit

Detailed Pin Configuration

The OPB742 typically features a 4-pin configuration: 1. VCC (Power Supply) 2. GND (Ground) 3. Output 4. N/C (Not Connected)

Functional Features

The OPB742 offers a non-contact sensing solution, making it suitable for applications where physical contact is not desired. It provides a digital output signal based on the presence or absence of an object within its sensing range.

Advantages and Disadvantages

Advantages

  • High sensitivity
  • Compact size
  • Reliable performance
  • Non-contact sensing

Disadvantages

  • Limited sensing distance
  • Susceptible to ambient light interference

Working Principles

The OPB742 operates on the principle of infrared light reflection. When an object enters the sensor's detection range, it reflects the emitted infrared light back to the phototransistor, causing a change in its output state.

Detailed Application Field Plans

The OPB742 finds extensive use in various applications such as: - Object detection in automated assembly lines - Paper detection in printers and copiers - Proximity sensing in consumer electronics - Robotics for obstacle detection

Detailed and Complete Alternative Models

Some alternative models to the OPB742 include: - TCRT5000: Similar infrared reflective sensor with adjustable detection distance - GP2Y0A21YK0F: Infrared proximity sensor with longer sensing range - QRE1113: Reflective object sensor with analog output

In conclusion, the OPB742 serves as a reliable optical sensor with high sensitivity and compact design, making it suitable for diverse non-contact sensing applications.

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10 pirs û bersivên hevpar ên têkildarî sepana OPB742 di çareseriyên teknîkî de navnîş bikin

  1. What is OPB742?

    • OPB742 is a reflective object sensor that consists of an infrared LED and a phototransistor.

  2. How does OPB742 work?

    • The infrared LED emits light, which is then reflected off an object and detected by the phototransistor, allowing the sensor to determine the presence or absence of the object.

  3. What are the typical applications of OPB742?

    • OPB742 is commonly used in applications such as object detection, position sensing, and automation systems.

  4. What is the operating voltage range for OPB742?

    • The operating voltage range for OPB742 is typically between 4.5V and 5.5V.

  5. What is the sensing distance of OPB742?

    • The sensing distance of OPB742 can vary based on the specific application and environmental conditions, but it is typically in the range of a few millimeters to a few centimeters.

  6. Can OPB742 be used in harsh environments?

    • OPB742 is not designed for harsh environments and may require additional protection or housing if used in dusty, wet, or extreme temperature conditions.

  7. What is the output type of OPB742?

    • OPB742 typically provides a digital output, which changes state based on the presence or absence of the detected object.

  8. Is OPB742 sensitive to ambient light?

    • OPB742 is designed to minimize the effects of ambient light interference, but excessive ambient light can still affect its performance.

  9. Can OPB742 be used for speed sensing applications?

    • OPB742 can be used for speed sensing in certain applications where the movement of an object can be detected by the sensor.

  10. What are some best practices for integrating OPB742 into a technical solution?

    • Best practices include calibrating the sensor for the specific application, minimizing ambient light interference, and ensuring proper alignment between the sensor and the target object.