MIL-PRF-19500-397 Semiconductor Device, Transistor, Pnp, Silicon, Types 2N3743, 2N3743U4, 2N4930, 2N4930U4, 2N4931, And 2N4931U4, Jan, Jantx, Jantxv, Jans, Janhc, And JankcThis specification covers the performance requirements for PNP, silicon, high-voltage transistor. Four levels of product assurance are provided for each device type as specified in MIL-PRF-19500. Two levels of product assurance for die are provided for each unencapsulated device type as specified in MIL-PRF-19500.