AD021-02E

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Magnetic sensors have many applications in a wide variety of industries. Switches are used to detect the presence or absence of a magnetic field or to monitor the direction of a field. AD021-02E is one of the most popular varieties of magnetic sensor switches that is used in low frequency switch applications.

AD021-02E is a solid-state reed switch which is a perfect choice for low frequency switching applications. It is based on the principle of a two-contact reed switch operated by a magnetic field. The reed switch contacts are completely sealed and contactless to ensure greater reliability and longer life. AD021-02E is rated for low power (0.5A at 15V) and low voltage (10V) operation. The maximum on/off switching speed is 2 Hertz.

In terms of application field, the AD021-02E is suitable for detection and switching of magnetically applied fields in a variety of applications such as motor systems, door locks, temperature sensors, automotive switches, home security systems, power meters, relays and proximity switches. This is because its reed switch is responded to low frequency fields and can detect low frequency magnetic fields. This allows it to be used in a range of applications such as detecting door opening/closing, turnstile motion and other manual operations where a magnet will operate a switch.

The AD021-02E is a robust device that is easy to use and install. Its reed switch is designed to operate in wet conditions and resist corrosion. The casing of the switch is made from ABS plastic which is designed to resist wear and tear from environmental conditions. The switch has a sealing cover that ensures greater reliability and prevents environmental intrusion.

The working principle of the AD021-02E magnetic sensor switch is based on the method of Faraday cage, which is also known as the electrical shielding method. Faraday\'s principle states that a magnetic field is created by a magnetic force and the force is reduced as it passes through a conducting material. In the case of the AD021-02E, the current generated by the magnetic field is reduced as it passes through the switch’s contactless reed contacts. When the current drops to a certain level, the switch is triggered to open or close. This method of magnetically triggered switching is known as "solid-state" switching and is less susceptible to environmental conditions than traditional mechanical switches.

The AD021-02E is an ideal magnetic switch for low frequency applications. It is robust, reliable and easy to install. Its ability to detect low frequency magnetic fields makes it suitable for a range of applications, such as door opening/closing, turnstile motion and other manual operations.

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