EXC-CET103U Filters

EMI/RFI filters are essential components in many electronic applications. The EXC-CET103U, a type of EMI/RFI filter, is typically used to reduce the emission of electromagnetic energy and to protect sensitive electronic components from electromagnetic interference (EMI) and radio frequency interference (RFI).

The EXC-CET103U is a kind of radial leaded three terminal network, mainly composed of two inductors, two capacitors, a resistor, as well as two ferrite beads or toroids and an absorptive capacitor for impulsive noise suppression.

The EXC-CET103U filter utilizes inductance to reduce high frequency noise, which goes through the LC network formed by two inductors and two capacitors, together with the resistor for impedance matching. The ferrite beads/toroids are added for higher EMI/RFI suppression ability. The absorptive capacitor is used to absorb any impulsive noise that may be induced in the network and further decrease the EMI/RFI output.

The EXC-CET103U is primarily designed for applications such as analog/digital audio systems, digital logic systems, e-meters, and cellular towers. In these types of applications, the EXC-CET103U can provide an effective way for controlling EMI/RFI, by greatly limiting the amount of RF energy reaching sensitive components.

The EXC-CET103U is also useful for automotive applications. It helps reduce noise in automotive electronics such as alternators, HVAC systems, and powertrain systems. Additionally, it can be used in combination with other components such as transformers, circuit breakers, and power cords, to reduce the amount of EMI/RFI generated by the vehicle.

To sum up, the EXC-CET103U is a type of EMI/RFI filter which is mainly used for analog/digital audio systems, digital logic systems, e-meters, cellular towers, automotive applications and various other electronic applications. It is capable of providing excellent EMI/RFI suppression by utilizing inductance, capacitance, and resistor elements, in combination with other components such as ferrite beads or toroids and absorptive capacitors, to reduce the amount of RF energy that reaches sensitive components.