MIL-PRF-19500-455 Semiconductor Device, Transistor, Npn, Silicon, Power Switching, Types 2N5664, 2N5665, 2N5666, 2N5666S, 2N5666U3, 2N5667, And 2N5667S, Jan, Jantx, Jantxv, Jantxvr, Jantxvf, Jans, Jansm, Jansd, Jansp, Jansl, Jansr, Jansf, Jansg, Jansh, Janhc, And Jankc, Jankcm, Jankcd, Jankcp, Jankcl, Jankcr, Jankcf, Jankcg, And JankchThis specification covers the performance requirements for NPN, silicon, power transistors for use in high-speed power-switching applications. Four levels of product assurance are provided for each encapsulated device type as specified in MIL-PRF-19500. Two levels of product assurance are provided for each un-encapsulated device type as specified in MIL-PRF-19500. Provisions for radiation hardness assurance \(RHA\) to eight radiation levels is provided for JANS product assurance level. Radiation hardness assurance \(RHA\) level designators; "M", "D", "P", "L", "R", "F", "G", and "H" are appended to the device prefix to identify devices which have passed RHA requirements.