MIL-PRF-19500-587 Semiconductor Device, Diode, Silicon, Rectifier, Types 1N6661, 1N6662, 1N6663, 1N6661Us, 1N6662Us, And 1N6663Us, Jan, Jantx, Jantxv, And JansThis specification covers the performance requirements for silicon diodes. Four levels of product assurance are provided for each device type as specified in MIL-PRF-19500.