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A1121LUA-T - Allegro Microsystems

Description: Chopper-Stabilized Precision Hall-Effect Switch

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PCB Footprints
A1121LUA-T - Allegro Microsystems PCB footprint - Other - Other - Package UA, 3-Pin SIP, Matrix Style
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3D Models
A1121LUA-T - Allegro Microsystems  - 3D model - Other - Package UA, 3-Pin SIP, Matrix Style
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A1121LUA-T Details

  • Manufacturer Part Number:

    A1121LUA-T

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SIP

  • Pin Count:

    3

  • Manufacturer:

    Allegro MicroSystems LLC

  • YTEOL:

    6

  • Additional Feature:

    AEC-Q100; SHORT CIRCUIT PROTECTION

  • Body Breadth:

    1.52 mm

  • Body Height:

    4.12 mm

  • Body Length or Diameter:

    4.09 mm

  • Housing:

    PLASTIC

  • Hysteresis:

    2.5 mT

  • Input Mode:

    UNIPOLAR

  • JESD-609 Code:

    e3

  • Magnetic Field Range-Max:

    13.5 mT

  • Magnetic Field Range-Min:

    4 mT

  • Mounting Feature:

    THROUGH HOLE MOUNT

  • Number of Terminals:

    3

  • Operating Current-Max:

    4 mA

  • Operating Temperature-Max:

    150 °C

  • Operating Temperature-Min:

    -40 °C

  • Output:

    OPEN-DRAIN

  • Output Circuit Type:

    TRANSISTOR

  • Output Current-Max:

    60 mA

  • Output Range:

    30-60mA

  • Output Type:

    CURRENT OUTPUT

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Equivalence Code:

    SIP3,.02,50

  • Package Shape/Style:

    RECTANGULAR

  • Packing Method:

    BULK

  • Screening Level:

    AEC-Q100

  • Sensors/Transducers Type:

    MAGNETIC FIELD SENSOR,HALL EFFECT

  • Supply Voltage-Max:

    24 V

  • Supply Voltage-Min:

    3 V

  • Surface Mount:

    NO

  • Technology:

    BICMOS

  • Terminal Finish:

    Tin (Sn)

  • Termination Type:

    SOLDER

A1121LUA-T Frequently Asked Questions (FAQs)

  • A good PCB layout for the A1121LUA-T involves keeping the device as close to the magnetic field sensor as possible, using a ground plane to reduce noise, and minimizing the length of the traces connecting the device to the sensor.
  • To ensure accurate magnetic field measurements, it's essential to calibrate the device, use a high-quality magnetic field sensor, and minimize external interference sources such as electromagnetic radiation and thermal noise.
  • The A1121LUA-T has an operating temperature range of -40°C to 150°C, but it's recommended to operate the device within a temperature range of -20°C to 85°C for optimal performance and reliability.
  • Yes, the A1121LUA-T is designed to operate in high-vibration environments, but it's essential to ensure the device is properly mounted and secured to prevent mechanical stress and damage.
  • To troubleshoot issues with the A1121LUA-T, start by checking the power supply voltage, ensuring proper connections, and verifying the magnetic field sensor is functioning correctly. If issues persist, consult the datasheet and application notes or contact Allegro MicroSystems LLC support.

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A1121LUA-T Overview

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