4205-001

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Electromagnetic/Radio Frequency Interference (EMI/RFI) filters are an important component of electronic systems requiring clean power for reliable operation. The 4205-001 is an example of a filter specifically designed for industrial and medical application fields with stringent requirements for electromagnetic and radio frequency compatibility. This paper will explain its working principle in detail.

The 4205-001 utilizes a combination of low-pass and high-pass filters in a single, integrated circuit package. The low-pass filter is connected between the input voltage source and the capacitors connected to the output. The high-pass filter is connected between the capacitors and the terminal of the load. Low-pass filters reject high frequency interference signals. High-pass filters reject low frequency interference signals. By combining the two types of filters, the 4205-001 is able to reject both types of interference signals.

The 4205-001 also includes a pair of capacitors and an inductor. The two capacitors are connected in series between the output of the low-pass filter and the input of the high-pass filter. A series maximum inductor (SM) is connected between the two capacitors. The SM provides a high-impedance path to any high-frequency signals, thereby reducing the ground-bounce. The 4205-001 also includes an inductor connected between the terminal of the load and ground. This inductor reduces the power supply noise on ground and thus contributes to increased system reliability.

The 4205-001 is designed to operate in a wide range of temperature and humidity range. Its wide range of operating temperatures, from 40°C to 85°C, allows for operation in extreme environmental conditions. The 4205-001 also employs a unique compensation network which adjusts the capacitance value over the operating temperature ranges for optimal performance. Additionally, the 4205-001 is designed for single voltage working, meaning that the operation of the filter remains consistent across a single set of input voltage levels.

In summary, the 4205-001 is an EMI/RFI filter specifically designed to meet the requirements of industrial and medical application fields. By combining the low-pass and high-pass filters, it is able to reject both low and high frequency interference signals. It is designed to operate in a wide range of temperatures and utilizes a unique compensation network to maintain optimal performance. Furthermore, the 4205-001 is designed for single voltage working, meaning that its performance remains consistent across a single set of input voltages.

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