Jiangsu POWERSi microelectronics Co., Ltd. is a high-quality supplier of semiconductor discrete device rectifiers in China, as well as a manufacturer and service provider integrating with R & D, seal testing, sales and technical support. The main products are standard (ordinary) rectifier series, all kinds of GPP (glass passivation) fast recovery rectifier and FRED rectifier series, Schottky and low VF Schottky rectifier series. Our products are widely used in industrial variable frequency power supply, frequency converter, welding machines, UPS, EPS, switching power supply, communication power supply, security, all kinds of lead-acid and lithium battery chargers, LED green lighting, home appliances and many other fields.
Don't underestimate a diode. Although the principle of the diode is very simple, its role in the circuit is very large, and the use of the diode in the circuit is also very wide. The diode belongs to a PN junction, the most basic characteristic is unidirectional conductivity, forward conduction, reverse cut-off. The following picture shows some common diodes. A single diode has only two useful pins. A diode packaged with more than three pins may have multiple diodes integrated inside or some pins may be left floating.