Manufacturer Part Number
A1221LUA-T
Manufacturer
Allegro MicroSystems
Introduction
Compact, highly sensitive, and stable Hall-effect switch
Designed for automotive and industrial applications
Product Features and Performance
Wide operating voltage range of 3V to 24V
Wide operating temperature range of -40°C to 150°C
High-sensitivity magnetic actuation and release points
Stable operation with minimal jitter
Latching function for position/motion detection
Open-drain output with up to 25mA current capability
Product Advantages
Robust and reliable performance in harsh environments
Compact 3-pin SIP package for easy integration
Compatible with a wide range of applications
Optimized for automotive and industrial use
Key Technical Parameters
Voltage supply: 3V to 24V
Operating temperature: -40°C to 150°C
Magnetic actuation/release points: ±9mT
Supply current (max): 4mA
Output current (max): 25mA
Package: 3-SIP
Quality and Safety Features
RoHS3 compliant
Automotive-grade AEC-Q100 qualified
Compatibility
Suitable for a wide range of automotive and industrial applications
Can be used in position/motion detection, speed sensing, and more
Application Areas
Automotive systems (e.g., transmission, suspension, steering)
Industrial automation and control systems
White goods and home appliances
Robotics and machinery
Product Lifecycle
Current production model, no plans for discontinuation
Replacement and upgrade options available from Allegro MicroSystems
Key Reasons to Choose This Product
Reliable and stable performance in harsh environments
Compact and easy-to-integrate package
Wide operating voltage and temperature ranges
Automotive-grade quality and safety certification
Versatile and compatible with a wide range of applications