24 V regulation at 500 mW — DO-35 axial
The Microchip Technology 1N6009A is a 24 V Zener diode rated for 500 mW continuous power dissipation in a DO-35 axial-lead package. The ±10% tolerance on the nominal voltage means the actual breakdown sits between 21.6 V and 26.4 V — wide enough for general-purpose clamping or shunt regulation but not precision reference work. With a junction temperature range of -65°C to 175°C, the part handles the thermal extremes of industrial or military-grade environments. The 78 Ohm maximum Zzt impedance at the test current means the regulation voltage shifts roughly 0.78 V per mA of load change — a figure to budget in the rail budget.