The main role of the detector diode is a high frequency signal in a low frequency signal detection. Their structure is point contact type, so a small junction capacitance, Qingdao glass diodes, higher operating frequencies. Generally germanium material. On principle, the Zhejiang glass diodes, remove the modulated signal from the input signal is the detector to the size of the rectified current (100mA) as the line usually less than 100mA of output current is called detection. Point-contact germanium material, operating frequency up to 400MHz, the forward voltage drop is small, small junction capacitance, high detection efficiency, good frequency characteristics, Shenzhen glass diodes for 2AP type. Similar touch-type detector used as a diode, except for the detection, but also can be used for clipping, clipping, modulators, mixers, switches and other circuits. FM detector also promising special features consistency and good two-diode combinations. Diodes are one of the most commonly used electronic components, its greatest feature is the one-way conductivity, that is, the current can only flow from one direction through the diode, the diode acts rectifier circuit, a detection circuit, voltage regulator circuit, various modulation circuit , are mainly constituted by a diode, the principle is very simple, it is because diodes and other components of the invention, glass diodes, and now we have the birth of a variety of electronic information world, since such a large role diode then we How to detect the elements of it, is actually very simple just use the multimeter to measure the resistance profile about reverse resistance of the diode if it means very little is bad, if a large reverse resistance of the diode which shows are good. For such basic elements we should firmly grasp the basic principle and the role of his circuit, so as to lay a good foundation for future learning electronics. Diodes mainly by PN junction and work. PN junction and indivisible point-contact and Schottky type, are also included within the scope of a general diode. Including these two models, including, according to the characteristics of PN structure made plane, the crystal diode classified as follows: point-contact point contact diode is on a single wafer of silicon germanium or a metal pin contact pressure, and then by the current Method formed. Thus, the PN junction capacitance is small, suitable for high frequency circuits. However, compared with the junction type, point-contact diode forward characteristics and backward characteristics are poor, therefore, can not be used for large current and rectification. Because the structure is simple, it is cheap. Jiangsu glass diodes, gold credit (certified), glass diodes provided by Qingdao integrity Technology Co., Ltd. Qingdao integrity Technology Co., Ltd. (www.qdjcx.com) is in Qingdao, Shandong diode 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 gold credit.