高壓瓷片電容在使用過(guò)程中如果使用不當(dāng)或者是其他的外在因素的影響，都是會(huì)出現(xiàn)故障或者是損壞。高壓瓷片電容常見(jiàn)的漏電原因有哪些？

　　High voltage ceramic capacitor in the use process if improper use or other external factors, are likely to failure or damage. What are the common leakage causes of high voltage ceramic capacitor?

　　高壓瓷片電容在正常情況下應(yīng)是高絕緣的，絕緣值高達(dá)1．0E＋9歐姆，多種因素會(huì)導(dǎo)致瓷片電容的絕緣下降造成漏電現(xiàn)象。總結(jié)有以下兩點(diǎn)原因：

　　Under normal conditions, high voltage ceramic capacitor should be highly insulated with insulation value as high as 1.0e + 9ohm. Many factors may cause the insulation of ceramic capacitor to drop and cause leakage. There are two reasons for this

　　首先是表面臟污引起的表面絕緣下降，這類漏電電流不十分大，一般是微安級(jí)別，熱風(fēng)吹一吹絕緣值會(huì)上升。

　　First of all, the surface insulation is reduced due to the surface dirt. This leakage current is not very large, which is generally micro ampere level. The insulation value will rise when the hot air blows.

　　其次內(nèi)部裂紋，有焊接引起的裂紋和瓷片電容制造不良自帶裂紋。這類裂紋引起的漏電電流會(huì)不斷升高，嚴(yán)重時(shí)會(huì)引起局部爆炸起火。

　　Secondly, there are internal cracks, cracks caused by welding and cracks brought by poor manufacturing of ceramic capacitor. The leakage current caused by this kind of crack will increase continuously, and will cause local explosion and fire in serious cases.

　　電容一旦動(dòng)過(guò)烙鐵或升溫，都會(huì)恢復(fù)正常，許多工程師都往往錯(cuò)誤的分析為焊錫膏問(wèn)題，很多人第一次遇到也沒(méi)有分析正確，第二次才準(zhǔn)確分析，把樣品剖開顯微鏡觀察，確實(shí)是電容有問(wèn)題了。

　　Once the capacitor is moved by the soldering iron or heated, it will return to normal. Many engineers often mistakenly analyze the problem as solder paste. Many people do not analyze it correctly for the first time, and then analyze it accurately after the second time. When the sample is dissected and observed by microscope, it is indeed that there is something wrong with the capacitor.

　　對(duì)于高壓瓷片電容漏電從可靠性角度說(shuō)，是屬于典型的低應(yīng)力失效，多層陶瓷電容、繼電器、滌綸電容都有這些問(wèn)題。如果供電不干凈導(dǎo)致，比如直流電壓異常，即使電容的額定電壓是50V、25V的也會(huì)漏電，但是在1~10V之間的這種電容最為嚴(yán)重，它在這種直流電壓異常的情況下工作一定時(shí)間后，就會(huì)漏電，而且隨時(shí)間增長(zhǎng)越來(lái)越多，越來(lái)越嚴(yán)重。

　　From the reliability point of view, the leakage of high-voltage ceramic capacitor is a typical low stress failure. Multilayer ceramic capacitor, relay and polyester capacitor all have these problems. If the power supply is not clean, such as abnormal DC voltage, even if the rated voltage of the capacitor is 50V or 25V, it will leak, but the capacitor between 1 ~ 10V is the most serious. After working for a certain period of time under the condition of abnormal DC voltage, the leakage will be more and more serious with time.

　　如果想要避免這樣的情況出現(xiàn)，就要選擇正規(guī)廠家的知名品牌的電容。山東紅寶電子有限公司主要經(jīng)營(yíng)各種類型的電容元器件，包括：電解電容、高壓瓷片電容、薄膜電容、超級(jí)電容、貼片電容等等，是韓國(guó)三和電容的特約代理商。

　　If you want to avoid such a situation, you should choose the capacitor of well-known brand of regular manufacturer. Shandong Hongbao Electronic Co., Ltd. mainly deals in various types of capacitor components, including electrolytic capacitor, high voltage ceramic capacitor, thin film capacitor, super capacitor, chip capacitor and so on.