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判断晶闸管好坏常用的一种方法是,用万用表R×10(Ω)的电阻挡测量阳极、阴极、门极之间的电阻值。阳极与阴极间的电阻不管黑笔接在阳极还是接在阴极,其电阻值都较大,一般为几百千欧姆。而门极与阴极之间的电阻要小得多,约几十～几百欧姆,以此来鉴别晶闸管的管脚和初步判断管子的好坏。但是用万用表R×10(Ω)电阻挡测试门极与
Thyristor is good or bad to determine a common method is to use a multimeter R × 10 (Ω) of the electrical resistance measured between the anode, cathode, the resistance between the gate. No matter whether the black pen is connected to the anode or the cathode, the resistance between the anode and the cathode is relatively large, generally several hundred kilo-ohms. The resistance between the gate and the cathode is much smaller, about dozens to several hundred ohms, in order to identify the thyristor pin and the initial judge good or bad tubes. But with a multimeter R × 10 (Ω) resistance test gate and