SFABC5000472MX1

• Feed Through Capacitors

SFABC5000472MX1 Application Field and Working Principle
The SFABC5000472MX1 is a ceramic feed through capacitor designed to minimize EMI/RFI emissions in the frequency range of 100 MHz - 1 GHz. It is bidirectional and is designed to reduce the signal loss on high-speed communication lines such as Ethernet and USB. This component is typically used in applications that require low EMI/RFI shielding, such as automotive electronics and computer electronics. The SFABC5000472MX1 is designed to provide a uniform impedance across the frequency range, allowing for maximum performance and reduced signal losses.

The SFABC5000472MX1 is composed of a ceramic core with tin-plated termination layers. The core is composed of a high-purity polycrystalline alumina, covered with a dielectric layer composed of a high-temperature firing. This layer provides a uniform dielectric constant across the band, minimizing out-of-band losses and offering an impedance match across the intended frequency range. The termination layers are made of tin plated copper, designed to minimize the chance of short circuiting. The core and termination layers are designed to minimize EMI/RFI emissions.

The working principle of the SFABC5000472MX1 is the same as other feed through capacitors. These components are designed to reduce EMI/RFI emissions by allowing the module to act as a noise filter. The feed through capacitor’s job is to absorb, store, and release an electric force to block unwanted EMI/RFI noise. This component works by breaking the current on the communication line and allowing the signals to bypass the noise filter. The capacitive reactance of the component increases with frequency, helping to reduce the amount of energy transferred to and from the input and output lines.

In summary, SFABC5000472MX1 is a ceramic feed through capacitor designed to minimize EMI/RFI emissions in the frequency range of 100 MHz - 1 GHz. It is typically used in applications that require low EMI/RFI shielding, such as automotive electronics and computer electronics. The SFABC5000472MX1 is composed of a ceramic core with tin-plated termination layers and works by allowing the module to act as a noise filter, absorbing, storing, and releasing an electric force to block unwanted EMI/RFI noise.