MIL-PRF-19500-108 Semiconductor Device, Thyristors \(Controlled Rectifiers\), Silicon, Types 2N682, 2N683, 2N685 Through 2N692, 2N692A, 2N5206, Jan And JantxThis specification covers the performance requirements for PNPN silicon power, reverse-blocking triode thyristors. Two levels of product assurance are provided for each device type as specified in MIL-PRF-19500.