Subminiature voltage stabilizing capacitor

Abstract

The invention relates to a subminiature voltage stabilizing capacitor which comprises a casing, a liner, insulation filler and a voltage stabilizing capacitor. The liner is arranged on the inner side of the casing. The voltage stabilizing capacitor is arranged inside the liner. The insulation filler is arranged in the casing, and fills the gap between the liner and the voltage stabilizing capacitor. The voltage stabilizing capacitor includes a current limiting resistor, a roll core, electrode end plates, two lead-out wires, and a voltage stabilizing dielectric layer. The voltage stabilizing dielectric layer consists of a special polypropylene dielectric layer and a metal electrode layer. The special polypropylene dielectric layer is of a single-sided single-margined zinc-aluminum metalized thickened polypropylene mesh structure. The metal electrode layer is a zinc-aluminum electrode layer. The voltage stabilizing dielectric layer is arranged between the electrode end plates. The subminiature voltage stabilizing capacitor has the advantages of better DV / DT, non-inductive overall structure, low equivalent series inductance, low ESR, low ERL, low loss factor, and good self-healing effect. Moreover, the arc distance is designed in accordance with the voltage level, spike voltage can be well absorbed, and the safety of the circuit is protected.

Description

technical field [0001] The invention relates to an electronic component, in particular to an ultra-small stabilizing capacitor. Background technique [0002] With the miniaturization, light weight and high efficiency of electronic equipment and the expansion of application range, corresponding capacitors are required to achieve miniaturization, large capacity, high frequency and low impedance, high temperature resistance, long life and more suitable for high-density assembly requirements. Especially the voltage stabilizing capacitor, as the main component of filtering the peak high pulse voltage in the protection circuit, its stability and service life are its most important performance indicators. [0003] Some of the existing voltage stabilizing capacitors used to protect circuits cannot take into account the above two points. At the same time, their size is large, which does not adapt to the trend of miniaturization of modern electronic components. Therefore, a new volta...

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Problems solved by technology

[0003] Some of the existing voltage stabilizing capacitors used to protect the circuit cannot take into account the above two points. At the same time, their size is large, which does not adapt to the trend of miniaturization of modern electronic components. Therefore, a new voltage stabilizing capacitor is needed to solve the above problems.

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