FN3258-55-34

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Power Line Filter Modules (PLFs) are electronic components that help to reduce electrical noise in circuit boards, such as radio frequency interference (RFI). The FN3258-55-34 is an example of a power line filter module. It is designed to reduce the amount of unwanted signals from affecting the working of a circuit board, thereby improving the performance and reliability of the board.

The FN3258-55-34 is a small component which utilizes a combination of inductors, capacitors and resistors to filter out unwanted electro-magnetic signals from a circuit board. It is typically sold as a single package and is designed to be wired to the circuit board in the same way as a normal filter. The component provides a filtering action up to 1MHz and can reduce the level of unwanted noise by up to 30dB. The filter has a maximum input/output voltage rating of 80V, allowing it to be used in a variety of applications.

The FN3258-55-34 is most typically used in automotive, industrial and telecom applications. It is often used in circuits where there is a high level of ambient RFI, thereby allowing the effective operation of the circuit board. In automotive applications, the filter can be used to reduce static and electrical noise from the engine, resulting in less interruption to the radio and other electronic systems. In industrial applications, the filter can be used to reduce interference from other machinery or electrical systems in the factory. In telecom applications, the filter is used to reduce noise from cell phones or other wireless devices. In all cases, the filter helps to ensure that the circuit board operates reliably and without interruption.

The working principle of the FN3258-55-34 is relatively simple. The component utilizes inductors and capacitors to provide the filtering action. Inductors are used to provide the low-pass filter action, while capacitors are used to provide the high-pass filter action. When a signal is applied to the filter, it passes through the inductors first, reducing the high-frequency components of the signal. Then the capacitors pass the reduced signal, allowing only the lower-frequency components to pass through. This provides a filter action which can reduce the level of unwanted noise.

In addition to providing a filtering action, the FN3258-55-34 also has in-built protection features. The component has a built-in thermal fuse which will blow if the power flow is too great. The component also has a built-in EMI suppression capacitor which can reduce the level of electro-magnetic interference generated by the circuit board. This helps to protect other electronic components from being damaged by this interference.

In conclusion, the FN3258-55-34 power line filter module is a valuable component for reducing unwanted electrical noise in circuit boards. The component is most typically used in automotive, industrial and telecom applications, and can reduce the level of unwanted noise by up to 30dB. The filter has a maximum input/output voltage rating of 80V, and is protected by a built-in thermal fuse and EMI suppression capacitor. By reducing the level of unwanted noise in a circuit board, the FN3258-55-34 helps to improve the performance and reliability of the board.

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