MIL-PRF-19500-472 Semiconductor Device, Transistor, Npn, Silicon, Power Darlington, Types 2N6350, 2N6351, 2N6352, And 2N6353, Jan, Jantx, Jantxv, Janhc, And JankcThis specification covers the performance requirements for NPN silicon power Darlington, transistors. Three levels of product assurance are provided for each encapsulated device type as specified in MIL-PRF-19500. One level of product assurance are provided for each unencapsulated device type as specified in MIL-PRF-19500.