IP4252CZ8-4,118

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EMI/RFI filters, also known as Electro magnetic interference/Radio frequency interference filters, are electronic components widely used to improve the noise immunity of electronic systems. The main purpose of the filter is to suppress unwanted EMI/RFI signals from interfering with the normal operation of the system. In this article, we will discuss the application field and working principle of IP4252CZ8-4,118.

The IP4252CZ8-4,118 is a type of EMI/RFI filter recommended by Nippon Electric Co., Ltd. It is composed of dedicated common mode filters and differential mode filters with capacitance and inductance. The inductance component consists of high-frequency multi-lane inductors and the capacitance component is composed of low-frequency multi-lane capacitors. It is suitable for power system, communication system, instrumentation system and general industrial control system, and it is also used in automotive, electronic products and consumer products.

The working principle of IP4252CZ8-4,118 is to reduce the electrical noise of the interference source. The filter reduces the electromagnetic energy passing through the circuit by providing a large impedance to the interference source. The impedance is generated by combined inductors and capacitors network.

When an external electromagnetic source induces current through the EMI/RFI filter, the filter will absorb the energy and transfer it to the ground, thus reducing the interference. The inductor component, which consists of high frequency multi-lane inductors, works mainly in frequency range of 0.1 MHz to 1 GHz, while the capacitance component produces energy absorption in frequencies of 4 MHz to 40 MHz. This combination reduces the interference from both the high and low frequencies.

At the same time, the filter can separate the normal operation voltage from the interference voltage, thus ensuring the normal operation of the circuit. The separation is achieved by the differential mode filter, which is composed of low frequency capacitors and inductors. The capacitors and inductors will act together to form impedance of the signals, so that the normal operation voltage can pass through the filter with relatively small impedance difference, while the interference will be blocked by the filter.

In summary, the IP4252CZ8-4,118 is a dedicated electro-magnetic interference/radio frequency interference filter that is designed to reduce the electrical noise of an interference source. The filter is composed of high-frequency multi-lane inductors and low-frequency multi-lane capacitors, which are used to reduce the interference from both high and low frequencies. The filter also has a differential mode filter, which separates the normal operation voltage from the interference voltage. This ensures the normal operation of the circuit. Thus, the IP4252CZ8-4,118 is an important component in improving noise immunity of the electronic system.

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