MIL-PRF-19500-424 Semiconductor Device, Diode, Silicon, Fast Recovery, Power Rectifier, 1N5186, 1N5187, 1N5188, And 1N5190, Jan, Jantx, And JantxvThis specification covers the detail requirements for silicon, fast recovery rectifier diodes. Three levels of product assurance are provided for each device type as specified in MIL-S-19500.