Q
why is not so easy to make sure the quality with Russian type fast Thyristor?
A
Russian type fast Thyristor(capsule version) such as TB143-500 TB553-800 Etc  is a kind of fast Thyristor which widely used in big power transformer ,AC/DC motor control  , inverter ,welder etc , for this kind of thyristor , the  higher Vrrm (repetitive peak reverse voltage) , the longer turn off time will requirements 

Previous:what specification are the thread for stud type standard recovery diode such as 40HF(R) 70HF(R) 85HF

Next:can i get the parameters for the items interesting in now ? for instance chinese type KP thyristor