SBSPP1000221MCT Filters

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Electromagnetic compatibility (EMC) and radio frequency interference (RFI) are areas of technology that involve the interaction of electric and magnetic fields with a variety of electrical and electronic systems. In order to ensure that any given device or system has the desired level of electromagnetic shielding and interference filtering, it is important to understand the specific application field and working principle of the EMI/RFI filter technology. The SBSPP1000221MCT is a popular filter solution used in EMI/RFI applications and understanding this product can prove beneficial for those looking to protect their device or system from unwanted interference.

The SBSPP1000221MCT is an EMI/RFI filter designed for use in sensitive applications including medical, avionics, and industrial instrumentation. It is a bi-directional filter, meaning it has two input and two output ports and will reduce interference that passes from one port to the other. The filter is constructed from a combination of inductors and capacitors in a “L-C” (inductance-capacitance) network, with the inductors providing the majority of the interference filtering capability. Using a combination of capacities and inductors help to reduce the attenuation slope of the filter, allowing for better high frequency attenuation.

The EMI/RFI filter has a wide range of operating frequencies. The SBSPP1000221MCT is designed for use with a frequency range from 18MHz to 2.2GHz. It uses a low pass filter configuration with a maximum input power rated at 20dBm and a maximum insertion loss of 1.5dB. The insertion loss is the measure of how much of the signal is lost when it passes through the filter and the higher the value, the less signal will be able to pass through the filter. The filter is capable of handling up to 500V peak-to-peak and up to 10A for single port operation.

The filter’s design is a combination of different filter stages in a multi-path topology. Each stage consists of inductors and capacitors in series, parallel, and/or combined configurations. The use of multiple paths also helps to provide better attenuation by providing paths of varying impedances with paths that are more suitable for higher frequency components. The filter also has a wide range of applications such as power, data, and signal, making it suitable for use in many applications.

The SBSPP1000221MCT is a popular filter solution for EMI/RFI applications due to its wide range of operating frequencies, its ability to manage high peak-to-peak voltages and current, and its low insertion loss. Its multi-path filter topology provides improved attenuation while its combination of inductors and capacitors allows for proper high frequency filtering. Understanding the specific application field and working principle of this EMI/RFI filter is important for those looking to properly protect their device or system from electromagnetic interference and radio frequency interference.

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