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Schottky diodes are based on barriers formed by metal and semiconductor contacts, referred to as Schottky Barrier Diodes, which are low-power, high-current, ultra-high-speed semiconductor devices with positive The voltage is reduced by 0.4V, the switching speed is very fast, and the reverse recovery time is very short (2-10 ns nanoseconds). The disadvantage is that the reverse leakage current is large, the withstand voltage is low, generally lower than 150V, and is mostly used in low voltage applications.
Classification Schottky diodes are divided into two types: plug-in (DO-41) and patch (SOD, SOT). Schottky diodes in the DO-41 package are typically used as high frequency, high current rectifier diodes, freewheeling diodes or protection diodes. It is available in both single-tube and pair-tube (dual-diode) packages.
Schottky has three types of pin-out methods for the tube to have a common cathode (the cathode of the two tubes is connected), a common anode (the anode of the two tubes is connected), and a series (the anode of one diode is connected to the cathode of the other diode).