HAL519UA-A

Series:	HAL®
Packaging:	Tape & Box (TB)
Part Status:	Obsolete
Function:	Unipolar Switch
Technology:	Hall Effect
Polarization:	North Pole
Sensing Range:	-2mT Trip, -7.2mT Release
Test Condition:	25°C
Voltage - Supply:	3.8 V ~ 24 V
Current - Supply (Max):	4.2mA
Current - Output (Max):	20mA
Output Type:	Open Drain
Features:	Temperature Compensated
Operating Temperature:	-40°C ~ 140°C (TA)
Package / Case:	TO-226-3, TO-92-3 (TO-226AA) (Formed Leads)
Supplier Device Package:	TO-92UA-1

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Introduction

The HAL519UA-A is a Magnetic Switches (Solid State) type Magnetic Sensor that is used for applications such as automotive, fluid handling, industrial, electronic, and industrial equipment. Its working principle is fairly simple and straightforward, and as such makes it a very popular and widely used type of Magnetic Sensor.

Application Field

The HAL519UA-A can be used for many different types of applications, ranging from automotive, fluid handling, industrial, electronic, and industrial equipment. Its core applications are for detecting the presence of a metal, such as steel, iron, etc., by sending a signal when the presence of a metal object is detected. This can be especially useful for applications such as automotive oil pan or fuel filters, fluid pressure and temperature control, industrial conveyor belts, power switches, and a variety of other applications. It can also detect magnetic field changes, which can be useful for applications such as magnetic door latches or sensors.

Working Principle

The setup of the HAL519UA-A can vary depending on the application, but its core working principle remains the same: it uses a combination of two permanent magnets whose north and south poles are arranged according to the Hall effect. When a magnetic material is detected within the sensors range, the adjacent poles of the magnets are dynamically disturbed, resulting in a voltage output proportional to the strength of the magnetic field.These magnets are arranged parallel to each other, while the Hall Effect device is mounted between the two. The Hall Effect device is basically a semiconductor that contains a set of electrodes and a number of metallic contacts. As a current passes through the semiconductor, the voltage output is modified by the design of the magnets and the Hall Effect device. The voltage is then used to either detect the presence of a magnetic material or to measure the strength of the magnetic field.

Advantages

The HAL519UA-A Magnetic Sensor switch is a reliable and cost-effective solution for applications that require magnetic sensing. Unlike other sensor types, such as Hall effect, there is no physical contact between the magnets and the sensor, meaning that the device is resistant to mechanical damage and wear and tear. Additionally, the two permanent magnets are encapsulated within the housing of the device, making it highly resistant to environmental conditions such as corrosion. Furthermore, the LED display in the device display provides visual feedback about the status of the sensor, further increasing the ease of use.

Conclusion

The HAL519UA-A Magnetic Sensor is a reliable and cost-effective solution for applications that require the detection of a metal or the measurement of strength of a magnetic field. With its two encapsulated permanent magnets and LED display, the device is also highly resistant to the environment and provides visual feedback. All in all, the HAL519UA-A is a great option for those looking for a safe, efficient, and cost-effective solution for their Magnetic Sensor needs.

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