FN9675-16-03

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Power Line Filter Modules are designed to provide lightning and surge protection, clean power to prevent interference as well as protect the operation of electrical and electronic equipment from dangerous overvoltages. The FN9675-16-03 is a two-phase filter module specifically designed for 125A applications. It is provided with three elements: a common-mode filter, a differential-mode filter, and a spark-gap for suppressor of transients.

The common-mode filter in the FN9675-16-03 is designed to provide isolation and suppression of common-mode noise. It features a double inductor core and a unique differential pair design with very good attenuation characteristics. The inductive element, which is the primary filtering element in the module, is able to effectively reduce common-mode noise up to 50dB at 200kHz. The capacitive element is used to provide additional attenuation at higher frequencies with the help of its unique design.

The differential-mode filter of the FN9675-16-03, on the other hand, provides a shield to protect against surge and transient overvoltages. The filter is usually wired with one line from the incoming power source through a common ground cable to a common ground at the module. In case of a surge, the electrodes in the filter will conduct the current away from the line and into the ground thus providing protection. The FN9675-16-03 also uses the same shield for differential mode line noise, suppressing both differential and common mode noise.

The spark-gap component of the FN9675-16-03 works similar to the differential-mode filter but is designed to provide much higher levels of protection. This is achieved by using a series of electrodes connected to the incoming line and to a common ground. When a voltage surge or transient occurs, the spark-gap will act as a short circuit, and the high-energy discharge will be conducted away from the filter and into the ground. The spark-gap’s electrodes are designed to open again after the surge dissipates.

In conclusion, the FN9675-16-03 is a two-phase power line filter module specifically designed for 125A applications. The module consists of a common-mode filter, a differential-mode filter, and a spark-gap for suppressor of transients. The components work together to provide lightning and surge protection as well as clean power to prevent interference and protect the operation of electrical and electronic equipment from dangerous overvoltages.

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