TTC-4078

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Common mode chokes are electrical components used to reduce or suppress the common-mode noise in electrical circuits. TTC-4078 is a common mode choke designed to provide protection and efficient common-mode noise reduction in differential digital circuits. This product offers a wide common-mode range and low differential-mode insertion loss. In this article, we will discuss the application field and working principle of the TTC-4078 common mode choke.

Application Field

The TTC-4078 common mode choke is designed to provide common-mode noise reduction for differential signals in a wide variety of applications, including Automotive Audio, Industrial Ethernet, AV/Home Theater, Automotive Diagnostics, Video, and Gaming. This component can also be used to protect low-voltage power supplies. The TTC-4078 has proven to be a reliable noise filter for several different types of digital circuits.

Working Principle

A common mode choke, also known as a CM choke, is an electrical component that works by blocking or suppressing common-mode noise in electrical circuits. Common-mode noise is created when a noise source is coupled to two or more transmission lines in a circuit. This noise can cause interference and degrade the performance of the circuit. The purpose of a common mode choke is to limit this coupled noise from entering the transmission lines and to reduce the effects of electromagnetic interference (EMI).

The TTC-4078 common mode choke consists of two or more inductors connected in series or in parallel. The inductors limit the common-mode current and suppress noise. The inductance of each inductor is selected for a certain application and depends on the frequency of the noise source and the type of transmission lines used in the circuit. The device also includes over-voltage protection and capacitive bypass between the inductor and ground.

The TTC-4078 also features an inductive open-loop design, which helps to reduce the power consumption of the device. This design is also used to reduce the ringing of differential signals in high-speed digital applications. The TTC-4078 has a wide common-mode range and low differential-mode insertion loss, making it ideal for a variety of applications.

In summary, the TTC-4078 common mode choke is an effective solution for reducing or suppressing common-mode noise in electrical circuits. Its wide common-mode range and low differential insertion loss make it suitable for a variety of applications. The device also features an inductive open-loop design, which helps to reduce power consumption and ringing of the differential signals.

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