TCK-118

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Common mode chokes are devices that are designed to suppress noise, to reduce common mode currents or to pass signals. The TCK-118 is an example of a common mode choke. It is a type of electromagnetic choke (EMC) with very low impedance and is ideal for use with low-speed switching power supplies, EMI filter systems and personal data processing systems.

The TCK-118 is designed to be used in an application where common mode signals need to be suppressed. The choke offers a high impedance at common mode noise frequency, reducing the occurrence of common mode current between two interconnecting lines. This reduces the amount of EMI radiation from the lines, making the system more reliable and providing improved EMC performance. It also helps to minimize ground bounce and electrical interference in the system, while improving signal-to-noise ratios.

The TCK-118 has a very low impedance at working frequencies, which makes it suitable for applications such as power line conditioning, EMI suppression, electrostatic discharge protection, and voltage and current ripple reduction. It features a high differential-mode impedance that helps to reduce the effect of high frequency noise, while its excellent isolation ensures that no common-mode noise is propagated.

The working principle of the TCK-118 is based on the fact that the voltage of the core is proportional to the magnitude of the current that is flowing through it. As the choke is an inductive device, the core\'s magnetic field will build up as current flows through it, this in turn increases the impedance in the line, suppressing common mode signals. The choke\'s ability to reduce EMI is further enhanced by its high insulation resistance and high self-resonant frequency.

The TCK-118 is available in various sizes, ranging from 0202” (2mm by 2mm) to 0405” (4mm by 5mm). It has an isolation voltage of 500V and is insulated with a UL94V-0, Class-2 rated material. This ensures that the choke complies with many international safety standards such as UL, CSA, and VDE. It is also UL thermally certified, and can withstand temperatures as high as +125°C.

In short, the TCK-118 is a type of common mode choke that is designed to reduce EMI and improve EMC performance. It features an excellent common-mode impedance that helps to reduce the propagation of high frequency noise, while its low impedance at the working frequencies and high insulation resistance ensures that no common mode noise is propagated. The TCK-118 is also available in a variety of sizes and can be used in many different applications.

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