A1220LLHLT-T - Digital Switch Latch Open Drain Hall Effect Magnetic Sensors SOT-23-3

Allegro MicroSystems

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SKU:
005-A1220LLHLT-T
MPN:
A1220LLHLT-T
Digital latch Hall effect magnetic sensor with open drain output in 3-pin SOT-23W package
Quantity
Unit Price (ex. GST)
1 - 9
₹ 60.27
10 - 99
₹ 54.24
100 or above
₹ 48.22
Compact digital latch Hall effect magnetic sensor with open drain output in 3-pin SOT-23W package for contactless switching, position sensing, and embedded-system applications. View full description
  • 100% Original Products
  • GST Invoice
  • Earn 3% Cashback
₹71.12 inc. GST
₹60.27 ex. GST

Technical Specifications

Brand:
Allegro MicroSystems
Package/Case:
SOT-23-3
Mount:
Surface Mount
Number Of Pins:
3
Bandwidth:
800 kHz
Current Rating:
4 mA
Max Operating Temperature:
150 C
Max Output Current:
60 mA
Max Supply Current:
4 mA
Max Supply Voltage:
24 V
Min Operating Temperature:
-40 C
Min Supply Voltage:
3 V
Operating Supply Current:
4 mA
Output Current:
25 mA
Output Type:
Digital
Height:
1 mm
Length:
2.98 mm

Warranty Information

All the products supplied by Evelta are genuine and original. We offer 14 days replacement warranty in case of manufacturing defects. For more details, please visit our cancellation and returns page.

Description

Resources:
Datasheet

Open Drain Hall Effect Magnetic Switch Sensor For Position Detection And Contactless Switching Applications

The Digital Switch Latch Open Drain Hall Effect Magnetic Sensor in a 3-pin SOT-23W package is a compact magnetic-field detection device designed for reliable contactless switching and position sensing applications. Using Hall effect sensing technology, this sensor detects magnetic field polarity and provides a stable digital output suitable for embedded systems, industrial automation, consumer electronics, and motion-control applications. Its latch-type switching operation ensures dependable state retention until the opposite magnetic polarity is applied.

With an open-drain digital output and ultra-compact SOT-23W package, this Hall effect magnetic sensor is well-suited for PCB space-constrained applications requiring low-power magnetic detection. The device supports non-contact sensing for improved reliability and reduced mechanical wear compared to traditional switches. It is commonly used in brushless DC motors, door-position detection, rotational sensing, speed detection, smart appliances, and industrial magnetic switching systems.

Key Features

  • Hall Effect Magnetic Sensing: Detects magnetic field changes using contactless Hall effect technology.
  • Latch Switch Operation: Maintains output state until opposite magnetic polarity is detected.
  • Open Drain Output: Compatible with various logic voltage systems and microcontroller interfaces.
  • Compact SOT-23W Package: Small footprint suitable for high-density PCB designs.
  • Digital Switching Output: Provides a stable digital ON OFF signal response.
  • Low Power Consumption: Suitable for battery-powered and portable electronic devices.
  • Reliable Contactless Detection: Reduces mechanical wear and improves operational lifetime.
  • Fast Magnetic Response: Supports accurate position and motion sensing applications.
  • Wide Application Compatibility: Suitable for industrial, automotive, and embedded-system applications.

Applications

  • Magnetic position sensing
  • Door open close detection
  • Brushless DC motor control
  • Rotation detection systems
  • Speed sensing applications
  • Smart-home devices
  • Industrial automation
  • Consumer electronics
  • Contactless switching systems
  • Embedded-system development

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