A1221LUA-T

Series:	Automotive, AEC-Q100
Packaging:	Bulk
Part Status:	Active
Function:	Latch
Technology:	Hall Effect
Polarization:	South Pole
Sensing Range:	9mT Trip, -9mT Release
Test Condition:	-40°C ~ 150°C
Voltage - Supply:	3 V ~ 24 V
Current - Supply (Max):	4mA
Current - Output (Max):	25mA
Output Type:	Open Drain
Features:	--
Operating Temperature:	-40°C ~ 150°C (TA)
Package / Case:	3-SSIP
Supplier Device Package:	3-SIP

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Introduction

The A1221LUA-T is a magnetic sensor switch (solid state) designed to detect the presence of a magnetic field. It utilizes Hall Effect technology to detect the presence of a magnetic field and trigger an alarm or actuating device. The A1221LUA-T has an internal LDO regulator and built-in pull-up resistors that allows for a low quiescent current when operated in a low power mode. This magnetic sensor switch can detect a magnetic field from a remote location up to 32 feet away.

Application Field

The A1221LUA-T has a wide range of applications, including:

• Industrial safety systems
• Security systems
• Automotive safety systems
• Computers and communication systems
• Medical applications
• Robotics systems
• Consumer products

The A1221LUA-T is particularly suitable for industrial safety systems as it can detect the presence of a magnetic field even when the ambient noise level is high. It can also be used in security systems, such as for detecting the presence of an intruder in an area, or for determining if an item is present in a protected area. The A1221LUA-T can also be used in automotive safety systems, such as for detecting the presence of a hidden magnetic field in a vehicle.

Working Principle

The A1221LUA-T works by sensing the presence of a magnetic field. It utilizes Hall Effect technology to detect the presence of a magnetic field, which is then used to trigger an alarm or actuating device. When the sensor is placed near a magnetic field, its internal Hall sensor generates an electrical signal, which is then amplified and sent to the alarm or actuating device. Hall Effect technology is widely used in the automotive industry and has proven to be reliable and accurate in detecting magnetic fields. The A1221LUA-T is designed for superior reliability and accuracy, and its internal components are temperature compensated to ensure that the sensor is able to accurately and consistently detect the presence of a magnetic field. The A1221LUA-T has an impressive 32-foot detection range, making it suitable for applications where a magnetic field needs to be detected from a remote location. It also has a low quiescent current - typically less than 10 microamps - which is ideal for applications where power consumption needs to be minimized.

Conclusion

The A1221LUA-T is a versatile magnetic sensor switch designed to detect the presence of a magnetic field from a remote location up to 32 feet away. It is suitable for a wide range of applications, including industrial safety systems, security systems, automotive safety systems, computers and communication systems, medical applications, robotics systems, and consumer products. It utilizes Hall Effect technology to accurately detect the presence of a magnetic field, and its internal components are temperature compensated for improved reliability and accuracy. The A1221LUA-T is an excellent choice for detecting the presence of a magnetic field in a variety of applications.

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