A rectifier diode AC power to DC power to the semiconductor device possible. It usually contains a PN junction, there are two positive and negative terminals. The most important characteristic of the diode is conductive in one direction. In the circuit, the current can only flow into the diode from the positive electrode, a negative electrode outflows. PN junction diode rectifier is the use of one-way electrical properties, the alternating current into direct current ripple. Flow rectifier diode current is large, the majority of the material surface contact diode package. Rectifier diodes shape shown in Figure 1, Further, the rectifier diode in addition to several parameters described above, there are the maximum rectified current, the rectifier diode for a long time is the maximum allowed by the operating current value. It is the main parameter alloy prices diode rectifier diode, rectifier diode is an option to use the main basis. Diode is a unidirectional conducting a two-terminal device, an electronic diode and crystal diode points, because the hot filament electron diode losses alloy diode manufacturers, the efficiency is lower than the crystal diode, it is now rarely seen alloy diode the more common and popular multi-crystal diode. Diode-way electrical properties alloy diode characteristics, in almost all electronic circuits to be used in semiconductor diode, it plays an important role in many of the circuit, it is the birth of one of the earliest semiconductor device applications also very extensive. DIAC will detect multimeter DC voltage corresponding block. The test voltage is provided by megger. When testing, shake megger, measured in the same way ten thousand VBR value. Finally, the VBO and VBR are compared, the absolute value difference between the two is smaller, measured diac symmetry as possible. Alloy diode manufacturers _ gold credit (certified) _ alloy diode is provided by Integrity Technology Co., Ltd. Qingdao. 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.