component
BZX55C12PF-M
Public Made by Adomby adom
ST Semtech Zener Diodes, DO-35. Pinout cross-checked by two models against the datasheet, 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
markdownBZX55C12PF-M
ST Semtech · Zener Diodes · DO-35
BZX55C12PF-M from ST Semtech, 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 lead on the black cathode band end of the DO-35 glass case, which goes positive in Zener (reverse) operation at VZnom 12 V (11.4 to 12.7 V at 5 mA). |
| 2 | A | passive | Anode, the lead at the end opposite the cathode band of the DO-35 glass case, with a forward voltage of max 1 V at IF = 100 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ST Semtech |
| Package | DO-35 |
| Category | Diodes |
| Pins | 2 |
CAD (KiCad official)
- Symbol:
BZX55C12PF-M - 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: ST Semtech datasheet (3 pp, sha256
ee653f040d509fde, retrieved 2026-10-13, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-5-5(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).