Melexis Technologies NV
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US1881EUA-AAA-000-SP
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US1881EUA-AAA-000-SP

Product Overview

The US1881EUA-AAA-000-SP belongs to the category of Hall Effect sensors and is widely used in various applications such as automotive, industrial, and consumer electronics. This sensor is known for its high sensitivity, low power consumption, and robust packaging, making it suitable for harsh environments. The package includes the sensor itself along with essential documentation and support materials. Its essence lies in providing accurate and reliable magnetic field sensing capabilities, packaged in a compact and durable form.

Specifications

  • Operating Voltage: 3.8V to 24V
  • Output Current: 25mA
  • Operating Temperature: -40°C to 150°C
  • Package Type: SOT-23W
  • Sensitivity: 2.5mV/Gauss

Detailed Pin Configuration

The US1881EUA-AAA-000-SP features a standard SOT-23W package with three pins: 1. VCC (Pin 1) - Power supply input 2. GND (Pin 2) - Ground connection 3. Output (Pin 3) - Digital output signal

Functional Features

  • High sensitivity to magnetic fields
  • Reverse polarity protection
  • Wide operating voltage range
  • Fast response time

Advantages and Disadvantages

Advantages

  • Low power consumption
  • Robust packaging for harsh environments
  • Accurate and reliable sensing
  • Reverse polarity protection

Disadvantages

  • Limited temperature range compared to some alternatives
  • May require additional shielding in high-noise environments

Working Principles

The US1881EUA-AAA-000-SP operates based on the Hall Effect, where a voltage difference is generated across a conductor when subjected to a magnetic field. This voltage is then amplified and converted into a digital output signal, providing an indication of the presence and strength of the magnetic field.

Detailed Application Field Plans

The US1881EUA-AAA-000-SP finds extensive use in automotive applications for gear position sensing, speed detection, and anti-lock braking systems. In industrial settings, it is utilized for proximity sensing, flow rate monitoring, and position detection. Additionally, in consumer electronics, this sensor is employed in brushless DC motor control, joystick positioning, and smart home devices.

Detailed and Complete Alternative Models

  • A3144EUA-T (Allegro MicroSystems)
  • OH090U (Littelfuse)
  • SS49E (Honeywell)

In conclusion, the US1881EUA-AAA-000-SP offers a reliable and versatile solution for magnetic field sensing across various industries, with its high sensitivity and robust design making it a preferred choice for demanding applications.

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技術ソリューションにおける US1881EUA-AAA-000-SP の適用に関連する 10 件の一般的な質問と回答をリストします。

  1. What is US1881EUA-AAA-000-SP?

    • US1881EUA-AAA-000-SP is a Hall-effect sensor commonly used for sensing the presence of magnetic fields in various technical solutions.

  2. What are the typical applications of US1881EUA-AAA-000-SP?

    • This sensor is commonly used in applications such as speed and RPM sensing, position sensing, and brushless DC motor commutation.

  3. What is the operating voltage range of US1881EUA-AAA-000-SP?

    • The operating voltage range for this sensor is typically between 4.5V to 24V.

  4. What is the output type of US1881EUA-AAA-000-SP?

    • The sensor provides a digital output, typically in the form of an open-drain output.

  5. What is the temperature range for operation of US1881EUA-AAA-000-SP?

    • The sensor is designed to operate within a temperature range of -40°C to 125°C.

  6. How does US1881EUA-AAA-000-SP respond to magnetic fields?

    • The sensor responds to changes in magnetic fields by providing a corresponding digital output signal.

  7. What are the key features of US1881EUA-AAA-000-SP?

    • Some key features include high sensitivity, built-in reverse polarity protection, and wide operating voltage range.

  8. Can US1881EUA-AAA-000-SP be used in automotive applications?

    • Yes, this sensor is commonly used in automotive applications such as gear tooth sensors and speed sensing.

  9. Is US1881EUA-AAA-000-SP suitable for harsh environments?

    • Yes, the sensor is designed to withstand harsh environmental conditions and is often used in industrial and automotive applications.

  10. Are there any special considerations for PCB layout when using US1881EUA-AAA-000-SP?

    • It's important to follow the manufacturer's guidelines for PCB layout to ensure proper performance and noise immunity of the sensor.