日韩毛片毛片久久精品 I 九九热精品国产 I 日本中文字幕在线视频 I 欧美一区精品 I 干片网在线观看 I 欧美巨大xxxx做受中文字幕 I 51国产偷自视频区视频小蝌蚪 I 1024手机在线观看 I 高清乱码一区二区三区 I 亚洲精品无码成人片 I 日日天天 I 天堂在线中文视频 I 97超碰人人看 I bt天堂新版中文在线地址 I 久久激情欧美 I 国内精品久久久久影视老司机 I 久久久久久久极品内射 I av私库在线 I 国产精品对白久久久久粗 I 亚洲精品无码专区在线在线播放 I 国产成人一区二区精品视频 I 亚洲精品www久久久久久软件 I 高中国产开嫩苞实拍视频在线观看 I 97视频黄 I 精品人妻潮喷久久久又裸又黄 I 欧美 日韩版国产在线播放 I 亚洲中文字幕日本无线码 I 亚洲a∨日韩av高清在线观看 I 无套内射在线无码播放 I 色放在线免费播放

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