component
BZX55C12-TAP
Public Made by Adomby adom
Vishay Intertech Zener Diodes, DO-35. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownBZX55C12-TAP
Vishay Intertech · Zener Diodes · DO-35
BZX55C12-TAP from Vishay Intertech, in a DO-35. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Vishay Intertech |
| Package | DO-35 |
| Category | Diodes |
| Pins | 2 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Zener voltage (VZ at IZT1) | VZ | 11.4 | 12 | 12.7 | V | IZT1 = 5 mA, Tamb = 25 °C | 2 |
| Reverse leakage current at Tamb = 25 °C | IR | 0.1 | μA | VR = 1 V, Tamb = 25 °C | 2 | ||
| Reverse leakage current at Tamb = 150 °C | IR | 2 | μA | VR = 1 V, Tamb = 150 °C | 2 | ||
| Dynamic resistance at IZT1 | ZZ | 20 | Ω | IZT1 = 5 mA, f = 1 kHz | 2 | ||
| Dynamic resistance at IZT2 | ZZK | 90 | Ω | IZT2 = 9.1 mA, f = 1 kHz | 2 | ||
| Temperature coefficient of VZ | TKVZ | 0.03 | 0.11 | %/K | 2 | ||
| Forward voltage (max.) | VF | 1.5 | V | IF = 200 mA | 1 | ||
| Power dissipation | Ptot | 500 | mW | l = 4 mm, TL = 25 °C | 1 | ||
| Junction temperature | Tj | 175 | °C | 1 | |||
| Storage temperature range | Tstg | -65 | 175 | °C | 1 | ||
| Junction to ambient air thermal resistance | RthJA | 300 | K/W | l = 4 mm, TL = constant | 1 |
CAD (KiCad official)
- Symbol:
BZX55C12-TAP - Footprint:
Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal - 3D model: DO-35 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Vishay Intertech datasheet (7 pp, sha256
f8e071683c27dd29, retrieved 2026-10-21, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).