80 V, 3 A Schottky with military pedigree
The 1N6864 is a Schottky rectifier diode qualified to MIL-PRF-19500/620, rated for 80 V reverse voltage and 3 A average rectified current in a through-hole B, Axial package. The fast recovery characteristic (<500 ns, >200 mA Io) means the diode sweeps out stored charge quickly when the polarity reverses, reducing switching losses in a 50/60 Hz rectifier or a low-frequency flyback circuit. This is not an ultrafast diode for a 100 kHz switcher, but it is faster than a standard 1N400x series rectifier and suits applications where recovery time matters more than the 50/60 Hz baseline.
MIL-PRF-19500/620 — what the qualification means
MIL-PRF-19500/620 is the military specification for Schottky barrier diodes in the JAN (Joint Army-Navy) qualification system. It mandates screening and lot acceptance tests — temperature cycling, hermeticity, high-temperature reverse bias, and burn-in — that commercial Schottky diodes do not undergo. The B, Axial package is a welded hermetic glass body, not a molded epoxy DO-41 or DO-201AD, so it passes the fine-leak and gross-leak hermeticity tests required by the spec. The junction temperature range of -65°C to +125°C covers the full military temperature band, including cold-soak starts at -55°C and continuous operation at +125°C case temperature. The reverse leakage is specified at 150 µA max at 80 V — this is higher than a commercial Schottky at the same voltage, but the MIL spec prioritizes reliability over leakage, and the hermetic package prevents moisture ingress that would shift leakage over time.
The bulk packaging means the diodes ship loose in a tube or bag, not on tape-and-reel — factor this into the receiving inspection process if your line expects reeled parts for automated insertion.