SC-02-20G

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Common Mode Chokes are electrical components designed to decrease noise, electromagnetic emissions, and susceptibility, and offer improved signal integrity in data transmission systems. The SC-02-20G is an application of this technology, and is a five-element high-performance Common Mode Choke having high impedance at the desired frequencies.

The SC-02-20G\'s components are composed of five inductors of the same kind of inductance, and are wound around the same ferrite core. These inductors are designed to be connected in two differential series, and the component works by forming two independent inductances, one for the differential pairs and one for the common-mode noise. This is known as the differential-mode impedance and the common-mode impedance, respectively.

The common-mode impedance of the SC-02-20G can reach as high as several thousand ohms at a frequency of 10 MHz, which is sufficient to block in-band signals on the common-mode path. The differential-mode impedance, however, is typically lower than one hundred ohms, which is important for allowing signals along the differential-mode paths. This differential-mode impedance is the SC-02-20G\'s most important attribute, as it allows signals to be transmitted with less distortion and improved performance.

The working principle of the SC-02-20G is simple. It provides shielding from common-mode noise by creating an impedance mismatch between differential and common-mode paths, and is especially effective at reducing common-mode noise in high-frequency systems. This is due to the fact that the SC-02-20G\'s inductors are designed to provide high impedance at the desired frequencies, and the differential-mode impedance is designed to be low enough to allow signals to be transmitted without distortion.

The SC-02-20G\'s application fields are vast. It is commonly used in high-performance systems such as Ethernet, USB 3.0, Fibre-Channel, and RS-232. Additionally, it is used in applications with high frequency digital data transmission and in systems requiring low noise levels. The SC-02-20G is also a popular choice for filtering out noise caused by power supply or motor noise.

The SC-02-20G is an effective and reliable component to reduce noise and electromagnetic emissions, as well as improve signal integrity in data transmission systems. Its differential-mode and common-mode impedance design allows signals to be transmitted without distortion, and its high common-mode inductance makes it ideal for high-frequency systems. By utilizing the SC-02-20G, engineers and designers can create more reliable and efficient systems.

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