MIL-PRF-19500-177 Semiconductor Device, Transistor, Pnp, Silicon Low-Power Types 2N1131, 2N1131L, 2N1132, 2N1132L, Jan, Jantx And JantxvThis specification covers the performance requirements for PNP silicon low-power transistors. Two levels of product assurance are provided for each device type as specified in MIL-PRF-19500.