Shenzhen Wudi Microelectronics Co., Ltd

The lead wire of the P-type region is called the positive or anode, and the lead wire of the N-type region is called the negative or cathode. There are two kinds of common diodes, silicon tube or germanium tube, their positive guide voltage (PN junction voltage) difference is large, germanium tube is 0.2 ~ 0.3V, silicon tube is 0.6 ~ 0.7V.