54-370-032

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Feed Through Capacitors

Feed through capacitors, also known as thru hole capacitors, are used to cope with the problem of high frequency energy that passes through electronic equipment and interferes with its operation or performance. Commonly seen in professional audio/video equipment, broadcast, and telecommunications, the 54-370-032 is a popular feed through capacitor.

Application Field

Feed through capacitors offer an effective countermeasure for high frequency interferences that can arise in radio frequency and microwave range. The design of the 54-370-032 features excellent RF-signal and EMI/RFI suppression. Due to its price and technical characteristics, the 54-370-032 is widely used for environment control systems, laboratory, medical and telecom applications.

Working Principle

The 54-370-032 is a feed through capacitor that employs high frequency noise filtering capacitors. The capacitor is inserted into the circuit and functions to short out the high frequency noise, which is then discharged via a ground plane. The working principle of this type of feed through capacitor involves a number of stages:

• The capacitor’s dielectric is constructed from either ceramic or plastic.
• It acts as a barrier and isolates a part of the electric circuit from the other.
• The energy passing through the capacitor is then discharged through the ground plane.
• An additional RFI filter is used to short the current path from the capacitor.

The aforementioned loop of power and ground lines are then connected to a series of ground planes and the high frequency noise is thus insulated from the equipment. The end result is that the noise passes through the filter without interfering with the intended operation, resulting in enhanced performance.

Other Features

The 54-370-032 feed through capacitor features a robust construction, an operating temperature range between -55°C and +95°C, and an excellent temperature coefficient (TCR) of +450ppm/°C. In addition, the product also offers excellent high frequency characteristics. It employs a multilayer arrangement, with an I/O impedance of 50±10 ohms and a capacitance range ranging between 0.033 to 0.1μF. Its maximum surge voltage is rated at 1,000V and it features both UL and CSA certification.

Conclusion

The 54-370-032 feed through capacitor is a highly reliable and sophisticated device which offers a number of advantages over traditional feed through capacitors. Its superior performance, excellent EMI/RFI suppression, robust construction, and wide range of applications render it a popular choice among professionals.

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