IP4251CZ8-4-TTL,13 Filters

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EMI/RFI Filters, or Electromagnetic/Radio Frequency Interference Filters, are used in electronic circuits to reduce the amount of electromagnetic interference and radio frequency interference inside the circuit. Such interference can cause malfunction or noise in the system, and the use of filters is usually necessary for efficient and stable operation.

IP4251CZ8-4-TTL,13 Application Field and Working Principle

The IP4251CZ8-4-TTL,13 EMI/RFI Filter is a four-lead single-stage filter for use in Telecommunication Equipment (TEE) applications. It is an analog filter with low pass and high pass sections, featuring a ground return path running through a third terminal. The common mode filter attenuates electromagnetic interference and radio frequency interference by acting as a high impedance barrier between the power supply and the circuit, thus limiting the noise that enters the power supply side.

When enabled, the filter reduces EMI/RFI by increasing the impedance of the path between the power line and the ground. The filter acts as a small capacitor between the power line and the ground, and when the power line voltage changes, the current is diverted to the ground, which in turn acts as a low pass filter. The capacitive reactance of the filter creates an impedance that decreases with the frequency of the noise, filtering out the high frequency interference and allowing only the lower frequency signals to pass through.

The common-mode filter also works in the opposite direction, blocking noise from entering the circuit from the power line. When two signals with different frequencies pass through the filter, the higher frequency signal is blocked while the lower frequency signal continues to pass through. This helps protect the circuitry from high frequency interference and radio frequency interference.

The IP4251CZ8-4-TTL,13 is designed for use in Telecommunication Equipment (TEE) applications, and is suitable for automotive, political and medical electronics. This EMI/RFI filter is compatible with both digital and analog applications, and is capable of operating at temperatures ranging from -40 to +105°C. It has an ultra-low insertion loss of 0.22dB and a maximum operating frequency of 2.1GHz. It also has a high ESD protection of 5.5kV.

The IP4251CZ8-4-TTL,13 EMI/RFI Filter provides superior protection for digital as well as analog electronics, and is suitable for use in a wide variety of applications. It has a low insertion loss, a wide operating temperature range, and a high ESD protection level. It is a reliable and cost-effective solution for protecting circuits from electromagnetic interference and radio frequency interference, ensuring that the circuit will remain stable and reliable for long-term operation.

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