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OPB891T51
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OPB891T51 Encyclopedia Entry

Product Overview

The OPB891T51 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 consists of the sensor itself along with any necessary mounting hardware, and it is essential for applications requiring precise object detection. The packaging typically includes a specified quantity of sensors per package.

Specifications

  • Operating Voltage: 5V
  • Output Type: Phototransistor
  • Sensing Method: Reflective
  • Operating Distance: 0.2mm to 2.5mm
  • Response Time: 15μs
  • Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The OPB891T51 features a standard 4-pin configuration: 1. VCC (Power Supply) 2. GND (Ground) 3. Output 4. N/C (Not Connected)

Functional Features

  • High sensitivity to detect objects within the specified range
  • Compact design for easy integration into various applications
  • Reliable performance in diverse environmental conditions

Advantages and Disadvantages

Advantages

  • High sensitivity enables accurate object detection
  • Compact size allows for versatile installation options
  • Reliable performance ensures consistent operation

Disadvantages

  • Limited operating distance compared to some alternative models
  • Susceptible to ambient light interference in certain environments

Working Principles

The OPB891T51 operates based on the principle of reflective sensing. When an object enters the sensor's detection range, it reflects the emitted light back to the phototransistor, causing a change in its output state. This change is then interpreted as the presence of the object.

Detailed Application Field Plans

The OPB891T51 is well-suited for a wide range of applications, including but not limited to: - Automated vending machines - Printers and copiers for paper jam detection - Robotics for object detection and sorting - Industrial automation for part presence verification

Detailed and Complete Alternative Models

Some alternative models to consider include: - OPB9000: Offers longer operating distances but with lower sensitivity - TCST2103: Provides higher resistance to ambient light interference but with a slightly larger form factor - EE-SX670: Features faster response times but may require additional circuitry for integration

In conclusion, the OPB891T51 optical sensor offers high sensitivity and reliable performance in a compact package, making it suitable for various object detection applications across different industries.

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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af OPB891T51 i tekniske løsninger

  1. What is OPB891T51?

    • OPB891T51 is a reflective object sensor that consists of an infrared LED and a phototransistor.

  2. What are the typical applications of OPB891T51?

    • OPB891T51 is commonly used in applications such as paper detection in printers, edge sensing in robotics, and object detection in industrial automation.

  3. What is the operating voltage range for OPB891T51?

    • The operating voltage range for OPB891T51 is typically between 4.5V to 5.5V.

  4. How does OPB891T51 detect objects?

    • OPB891T51 detects objects by emitting infrared light from the LED and then measuring the amount of light reflected back to the phototransistor.

  5. What is the typical response time of OPB891T51?

    • The typical response time of OPB891T51 is around 15 microseconds.

  6. Can OPB891T51 be used in outdoor environments?

    • OPB891T51 is not recommended for outdoor use as it is designed for indoor applications and may be affected by ambient light and weather conditions.

  7. What is the recommended operating temperature range for OPB891T51?

    • The recommended operating temperature range for OPB891T51 is typically between -40°C to 85°C.

  8. Does OPB891T51 require any external components for operation?

    • OPB891T51 may require external resistors and capacitors for proper operation, depending on the specific application requirements.

  9. Is OPB891T51 sensitive to ambient light?

    • OPB891T51 is designed to minimize the effects of ambient light, but excessive ambient light can still affect its performance.

  10. Can OPB891T51 be used for precise distance measurement?

    • OPB891T51 is not suitable for precise distance measurement as it is primarily designed for detecting the presence or absence of objects within a certain range.