AD621-02E

Series:	AD
Packaging:	Tube
Part Status:	Active
Function:	Omnipolar Switch
Technology:	Hall Effect
Polarization:	Either
Sensing Range:	±2.5mT Trip, ±1.1mT Release
Test Condition:	-40°C ~ 125°C
Voltage - Supply:	4.5 V ~ 30 V
Current - Supply (Max):	4.5mA
Current - Output (Max):	20mA
Output Type:	Open Collector
Features:	--
Operating Temperature:	-40°C ~ 125°C (TA)
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC

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AD621-02E is a type of solid state switch for magnetic sensing, and it is widely used in various fields due to its reliable performance and stable operation. It is reliable, easy to install, and low cost, making it a very popular choice for many applications.

The AD621-02E utilizes an electromagnet field to detect changes in magnetic signals, making it ideal for sensing the location of moving objects such as in automated industrial systems or safety precaution systems for factories. It also acts as a sensor to detect the presence of magnetic fields in order to detect the presence of other magnetic sources or an intruder.

The AD621-02E has three main parts: the housing, the actuator, and the internal magnetic field. The housing provides the mechanical structure for the device and acts as a barrier that keeps out dirt and debris. The actuator is the internal component that moves when a change in the magnetic field is detected. It relays the magnetic signal to the control circuit, allowing the AD621-02E to react to the changes in the environment. The internal magnetic field is the source of power for the actuator, which operates with a voltage range of 0 to 10 volts.

The main working principle of the AD621-02E is based on the principle of magnetic induction. When a magnetic field passes through the AD621-02E, it induces a current in the actuator. This current then is sensed by the control circuit and it triggers the actuator to move in the direction of the magnetic field thus opening or closing the switch.

The AD621-02E is widely used in various applications such as controlling motor speed, sensing presence of hazardous materials, and detecting the orientation of objects. In motor speed control applications, the AD621-02E acts as a switch that turns a motor on or off according to the position of the motor by responding to changes in the magnetic field. This allows for precise and efficient control of the speed of the motor.

In hazardous material sensing applications, the AD621-02E is used to detect the presence of hazardous material such as explosives or hazardous gases in a given area. The switch is able to sense changes in the magnet field in the environment and can detect the presence of the hazardous material.

In object orientation sensing applications, the AD621-02E can detect the orientation of an object. The object is placed within a fixed magnetic field and when it moves, the changing magnetic field is detected by the AD621-02E, which then changes its state accordingly.

In summary, the AD621-02E is a reliable, cost-effective solid state magnetic switch that is widely used in various fields. Its magnetic induction principle allows it to detect changes in the magnetic field thus enabling it to react accordingly. It is used in motor speed control, hazardous material sensing, and object orientation sensing applications, making it a very useful tool for many industries.

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