A1123LLHLT-T - Allegro MicroSystems

Manufacturer Part Number

A1123LLHLT-T

Manufacturer

Allegro MicroSystems

Introduction

Magnetic sensor switch for automotive and industrial applications

Provides a digital output based on the presence of a magnetic field

Product Features and Performance

Wide operating voltage range of 3V to 24V

Wide operating temperature range of -40°C to 85°C

Robust Hall-effect technology

Unipolar switch function

South pole sensitive

Sensing range of 35.5mT trip, 15mT release

Open drain output with maximum current of 25mA

Low current consumption of up to 4mA

Product Advantages

Versatile and reliable magnetic sensing solution

Wide voltage and temperature operating range

Compact surface mount package

Suitable for automotive and industrial applications

Key Technical Parameters

Voltage: 3V to 24V

Operating temperature: -40°C to 85°C

Sensing range: 35.5mT trip, 15mT release

Output type: Open drain

Supply current: Up to 4mA

Output current: Up to 25mA

Quality and Safety Features

ROHS3 compliant

AEC-Q100 qualified for automotive applications

Compatibility

Suitable for a wide range of applications requiring magnetic sensing and switching

Application Areas

Automotive systems (e.g., engine control, transmission, brakes)

Industrial automation and control

Machinery and equipment monitoring

Household appliances

Product Lifecycle

This product is an active and widely used part in the Allegro MicroSystems product portfolio

Replacement or upgrade options may be available, depending on the specific application requirements

Key Reasons to Choose This Product

Robust and reliable Hall-effect technology

Wide operating voltage and temperature range

Compact and easy-to-integrate surface mount package

Versatile unipolar switch function

Low current consumption

Automotive and industrial grade quality and safety features