久操91 I 色妞精品av一区二区三区 I 一本色道久久综合亚洲精品按摩 I 未满十八18禁止免费网站 I 国产精品久久久久久在线观看 I 成人午夜视频在线播放 I 亚洲成人看片 I www.四虎在线 I 宅男噜噜噜66网站在线观看 I 巨乳在线播放 I 婷婷91 I 国产成人av网 I 日本又黄又硬又爽的大片 I 国产中文一区 I 伊人影院亚洲 I 国产成人精品午夜2022 I av边做边流奶水无码免费 I 欧美熟妇与小伙性欧美交 I 久久不见久久见www免费视频 I 亚洲国产中文曰韩丝袜 I 奇米视频888战线精品播放 I 欧美性猛交乱大交xxxxx I 久久综合色之久久综合 I 免费国产午夜高清在线视频 I 国产亚洲国际精品福利 I 国产黄色在线 I 欧美日韩国产图片区一区 I 亚洲国产成人精品女人久久久 I 成人无码h动漫在线网站免费 I 国产91美女视频

Recently, there have been many customer inquiriesElectrolytic capacitorHow are the positive and negative poles distinguished? Is there a graphic display? Now let me explain it to you; One of the biggest differences between other capacitors and Electrolytic capacitor is that Electrolytic capacitor have positive and negative poles, and attention should be paid to the distinction when using them, otherwise there will be an explosion risk if they are used incorrectly.

Different Electrolytic capacitor have different identification methods, and the following will explain them one by one

1. Niujiao Electrolytic capacitor
Niujiao Electrolytic capacitor is mainly used in the field of high-power industrial power supply. Its main characteristics are large capacity, high voltage and high ripple current; Nowadays, all manufacturers use the "negative electrode label", also known as the "-" negative electrode of the casing, as shown in the following figure.

2. Pad type Electrolytic capacitor
Solder Electrolytic capacitor is also a kind of plug-in capacitor. It is also characterized by large volume and capacity. There are two ways to distinguish the positive and negative poles. One is to use bushing "negative pole mark -", and the other is that some manufacturers will use "embossed mark" negative pole on the cover plate, as shown below

3. SMD Electrolytic capacitor

SMD aluminum Electrolytic capacitorIt is printed with voltage and capacity information on the top of the aluminum shell, with a small black semicircle as the negative electrode (as indicated by the arrow in the figure below)

4. Bolt type Electrolytic capacitor
Bolt Electrolytic capacitor is a large capacitor in Electrolytic capacitor. The way to distinguish the positive and negative poles is: first, the cover plate of the capacitor, that is, the front of the two bolts, is marked with "positive" and "-" negative; Secondly, there is also a clear "negative electrode mark" on the casing, as shown in the following figure