27 V Zener, ±2% — the tight-regulation variant in the 1N6010 family
The 1N6010C is a 27 V Zener diode from Microchip Technology, specified with a ±2% tolerance on the nominal voltage — the tightest standard bin in the 1N6010 series. That ±540 mV window means the regulation point is predictable across the full 500 mW dissipation envelope, which matters when the Zener sets a reference rail or clamps a supply line. Rated for continuous power up to 500 mW at the case temperature, with a maximum impedance of 70 Ohms at the Zener test current. Reverse leakage is held to 100 nA maximum at 21 V reverse bias — a clean off-state for a 27 V part, so it does not load the rail until the breakdown knee is reached.
DO-35 axial — board-fit and thermal path
The DO-35 glass body handles the -65°C to 175°C junction temperature range — wide enough for military-temperature applications where a plastic SMD would drift or crack.