Rectifier diode (rectifier diode) for alternating current into direct current semiconductor devices. The most important characteristic of the diode is conductive in one direction. Rectifier diodes prices, current only flows into the anode of the diode in the circuit, the negative electrode effluent. It usually contains a PN junction, there are two positive and negative terminals. The structure shown in FIG. Carriers in the P region is a hole, the carrier N region is an electronic, in the P region and the N intervals of a certain barrier. N plus the P-region area is positive relative to the voltage of the rectifier diode, barrier lowering, resulting in storage position on both sides of the carrier near the barrier, through the high current, low voltage drop (typically 0.7V), called forward conduction state. Conversely, if applied voltage, so that barrier increases, can withstand high reverse voltage, reverse current flow through a small (known as reverse leakage current), known as a reverse blocking state. Rectifier diode has obvious way conductivity. Rectifier diodes are available, such as germanium or silicon semiconductor material. High breakdown voltage silicon rectifier diode rectifier diode device, the reverse leakage current rectifier diode supply, good high temperature performance. High voltage power rectifier diodes are usually high-purity single-crystal silicon (doping more easily reverse breakdown). This device is a large junction area, through a large current (up to thousands of security), but the operating frequency is not high, usually in the tens of kilohertz or less. Rectifier diode is mainly used for a variety of low-frequency half-wave rectifier circuit, and if necessary to achieve the full-wave rectifier bridge rectifier connected into use. Rectifier diodes, rectifier diodes choice should primarily consider its maximum rectified current, maximum reverse current, cut-off frequency and reverse recovery time and other parameters. Ordinary series power supply rectifier diode used in the circuit, the cutoff frequency of the reverse recovery time is less demanding, just select the maximum rectified current and maximum operating current in accordance with the requirements of the reverse circuit can meet the requirements of the rectifier diode. For example, 1N series, 2CZ series, RLR series rectifier diodes _ Qingdao gold credit (certified) _ rectifier diode Ltd. Qingdao integrity provided by the Technology Industry. Integrity Technology Co., Ltd. Qingdao (www.qdjcx.com) is Qingdao, diodes leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Ethical Leadership in gold with the staff warmly welcome all inquiries negotiations to create a better future for gold credit.