EMI4173MTTAG

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Common Mode Chokes are widely used in noise suppression and in ensuring mutual coupling between circuits. The EMI4173MTTAG is one such device that uses ferrite technology to achieve noise suppression and provides electrical isolation between wired circuits. Essentially, the device is a type of electromagnetic transformer, consisting of of two coils, relatively wound with each other, which use electromagnetic techniques to separate individual circuits.

Background of the EMI4173MTTAG

The EMI4173MTTAG was developed by Techni-Tech as part of its family of Common Mode Chokes. It is designed to be used in a wide range of applications, including automotive, industrial, home security systems, and refrigeration equipment. This Advanced Transformer Device (ATD) device is designed to effectively isolate two independent circuits and reduce between voltage levels. It is rated for a voltage up to 250 Volts, and its dielectric breakdown voltage is greater than 1kV. The device also features low loss and low temperature coefficient, making it a great option for circuit limiting and noise reduction applications.

Components and Working Principle

The EMI4173MTTAG consists of a steel core, two copper wires for winding the coils, and two windings with ferrite for noise suppression. The steel core acts as a low-reluctance return path for the magnetic flux. The two windings, which are usually referred to as the "primary" and "secondary" windings, are connected in series such that when a signal is applied to one winding, it induces an opposing signal to the other winding. Due to the inductive coupling between the two windings, a magnetically coupled flux is created, resulting in electrical isolation between the two circuits.

The two windings are also designed to reduce noise by blocking high frequency signals. This is known as "common mode rejection," and it can be achieved in two different ways, depending on the type of the EMI4173MTTAG Common Mode Choke. The first way is to use ferrite to create a high common mode impedance, which is known as "active mode" rejection. The other way is to use the inductance of the windings, which is known as "passive mode" rejection. In either case, the common mode rejection is capable of suppressing noise up to 30dB in the frequency range of 10KHz to 100MHz.

EMI4173MTTAG Application Fields

The EMI4173MTTAG can be used in a variety of applications, including automotive, industrial, home security systems, and refrigeration equipment, among others. In automotive applications, the device can be used in ECU’s, CAN/LIN busses, and audio systems, among other applications. It can also be used in home security systems, as well as in industrial, medical, and refrigeration equipment. In all of these applications, the device can be used as an EMI filter, to suppress high frequency noise, and to establish electrical isolation between two independent circuits.

Conclusion

The EMI4173MTTAG is an advanced transformer device designed for use in a variety of applications, from automotive and industrial to home security systems and refrigeration. It is capable of providing effective noise suppression and electrical isolation between wired circuits, while at the same time providing low loss and a low temperature coefficient. This makes it a great choice for circuit limiting and noise reduction applications.

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