ST1284-03A8RL

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EMI/RFI Filters (LC, RC Networks) have been used in various applications for decades. ST1284-03A8RL is one of the latest filters designed to suppress electro magnetic interference (EMI) and radio-frequency interference (RFI) caused by electromagnetic and radio-frequency devices.

The ST1284-03A8RL is primarily designed for use in the field of medical applications such as medical imaging and medical instrumentation. This filter features 3 independent LC (Inductors + Capacitors) filters and 8 types of RC networks which can be configured according to the desired EMI/RFI levels.

The working principle of the ST1284-03A8RL filter can be divided into two parts: the filter itself and the connecting circuits. The filter section consists of two separate LC networks connected with a common line. The two LC networks are called low pass and high pass, and they are designed to block signals of specific frequencies. The low pass blocks signals from 0Hz to 20kHz, while the high pass blocks signals from 20kHz to 5GHz.

The connecting circuits in ST1284-03A8RL are designed to route the interference signal through a different path than the original signal. The circuit consists of a circuit breaker, a control transformer, an equalizer, and an isolation transformer. The circuit breaker allows the interference signal to be shorted to ground while the control transformer ensures that the original signal is unaffected. The equalizer is designed to adjust the level of the signal from the source so that it matches the signal from the output. Lastly, the isolation transformer is designed to prevent any interference from being propagated back into the source circuit.

In general, ST1284-03A8RL filter can provide excellent performance in most medical applications, as it is capable of eliminating EMI/RFI signals effectively. It is an effective solution in terms of cost and performance, and its wide selection of RC networks makes it suitable for various medical devices. Since the filter is designed to withstand high-temperature operation, it is reliable and safe for use in medical applications.

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