The 1N6030A is a 180 V Zener diode in the DO-35 axial-lead package, rated for 500 mW continuous power dissipation. The ±10% tolerance on the nominal Zener voltage means the actual Vz sits between 162 V and 198 V — a guardband you need when the downstream circuit expects a precise clamp or reference. The 2.35 kOhm maximum impedance (Zzt) at the test current tells you the dynamic resistance: at higher bias the regulation stiffens, but at low current the voltage shift from load variation can be significant. The -65°C to 175°C operating range covers military and industrial temperature extremes — this is a part that stays specified from a cold-soaked avionics bay to a hot engine compartment. Reverse leakage is specified at 100 nA maximum at 114 V reverse bias (63% of Vz), so at the nominal Zener voltage the leakage is well below that figure; the forward drop is 1.1 V maximum at 200 mA, typical for a silicon junction of this die size.
1N6030A
Microchip 1N6030A Zener Diode, 180 V, 500 mW, DO-35
MPN1N6030A
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Microchip Technology 1N6030A Zener diode, 180 V nominal, ±10% tolerance, 500 mW, DO-204AH (DO-35) axial-lead, through-hole, Bulk.
$2.4900Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Mounting | Through Hole |
| Voltage - zener (Nom) | 180 V |
| Voltage - forward (Vf) (Max) @ if | 1.1 V @ 200 mA |
| Current - reverse leakage @ vr | 100 nA @ 114 V |
| Power - max | 500 mW |
| Operating temperature | -65°C~175°C |
| Package | Bulk |
| Tolerance | ±10% |
| Case | DO-204AH, DO-35, Axial |
| Impedance (Max) | 2.35 kOhms |