4302-004LF

Feed Through Capacitors

The 4302-004LF feed through capacitors are traditionally used in radio frequency (RF) ID applications such as active RFID as a DC-decoupling element for the antenna. The 4302-004LF is capable of working as a frequency-compensated feedthrough capacitor.

Application Field

The generic application field for 4302-004LF is in communications equipment, aerospace, transportation and medical electronics. This capacitor can become part of radio frequency (RF) applications such as active RFID, RF cellular communication and RF/EMF radiation emitters. It is also used in electronic systems where extreme accuracy and exceptional repeatability of precise values is required, as in sensitive power circuits.

The 4302-004LF feed through capacitor offers good efficiency, low internal heat dissipation and a wide frequency range of 250MHz to 5GHz. It also offers an improved tolerance output that makes it ideal for applications that require high stability and accuracy. In addition, it has improved high-frequency linearity than other Alternating Current (AC) coupling capacitors.

Working Principle

The 4302-004LF feed through capacitor works by bending a metal sheet in a zig zag fashion that allows an electric current to flow in a given direction in a single loop. In doing so, the capacitor produces an electric field which is strong enough to let an AC signal through with low losses. Its high efficiency allows the capacitor to filter only the high frequencies while passing through the lower frequencies.

This setup helps in limiting the amount of interference from stray currents and radio frequencies. The currents and frequencies are absorbed primarily by the feed through capacitor while still allowing the desired signal to pass through. The metal plate is then surrounded by an insulating material, which helps reduce any radiated signals.

When the 4302-004LF feed through capacitor is connected in a circuit, it helps to filter out the higher frequencies while still allowing the lower frequencies to pass through. This arrangement is especially beneficial in shielding sensitive electronic components from interference. It helps prevent distortion and crosstalk, thus providing a clean signal.

The 4302-004LF feed through capacitor is an essential component for providing reliable signal transfer in a wide range of electronic products. It is used in active RFID, RF cellular communication, and RF/EMF radiation emitters, which are all important applications. Its efficient performance, low internal heat dissipation, and wide frequency range make it an ideal choice for radio frequency applications.