22 V regulation with tight ±2% tolerance
The 1N6008C is a 22 V Zener diode from Microchip Technology, specified with a ±2% tolerance on the nominal voltage — this tighter band suits reference or clamp circuits where a standard ±5% part leaves too little margin. Rated for 500 mW continuous power dissipation in a DO-35 axial package, the part handles steady-state shunt regulation or transient clamping up to its thermal limit when the lead temperature is held within the -65 to +175 °C operating range.
Leakage and impedance at the operating point
Reverse leakage is held to 100 nA maximum at 17 V reverse voltage — 5 V below the Zener knee — which keeps the diode from loading a high-impedance bias network in standby or micropower circuits. Maximum Zener impedance (Zzt) is 55 Ohms at the nominal 22 V test current; this value sets the incremental voltage change per mA of load current and matters when the diode must hold a reference voltage across a varying shunt current. Forward voltage is 1.1 V maximum at 200 mA forward current — a guardrail for the conduction drop if the diode sees accidental forward bias in a dual-polarity clamp.