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BZT52C43
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FOSAN Zener Diodes, SOD-123. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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BZT52C43
FOSAN · Zener Diodes · SOD-123
BZT52C43 from FOSAN, in a SOD-123. 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 (marked − in the symbol on page 1); the zener voltage VZ for BZT52C43 is 40.0 V min to 46.0 V max at IZT=5mA, and total dissipation is 500 mW at Ta=25℃. |
| 2 | A | passive | Anode (marked + in the symbol on page 1); forward voltage VF is 0.9 V at IF=10mA, and junction and storage temperature is 150℃ and -65 to +150℃. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | FOSAN |
| Package | SOD-123 |
| Category | Diodes |
| Pins | 2 |
CAD (KiCad official)
- Symbol:
BZT52C43 - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
bzt52c43-etched.step/bzt52c43-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzt52c43.step/bzt52c43.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: FOSAN datasheet (4 pp, sha256
5ae7456598def8bb, retrieved 2026-10-09, 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).
# BZT52C43
**FOSAN** · Zener Diodes · SOD-123
BZT52C43 from FOSAN, in a SOD-123. 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 (marked − in the symbol on page 1); the zener voltage VZ for BZT52C43 is 40.0 V min to 46.0 V max at IZT=5mA, and total dissipation is 500 mW at Ta=25℃. |
| 2 | A | passive | Anode (marked + in the symbol on page 1); forward voltage VF is 0.9 V at IF=10mA, and junction and storage temperature is 150℃ and -65 to +150℃. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | FOSAN |
| Package | SOD-123 |
| Category | Diodes |
| Pins | 2 |
## CAD (KiCad official)
- Symbol: `BZT52C43`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files: `bzt52c43-etched.step` / `bzt52c43-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bzt52c43.step` / `bzt52c43.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [FOSAN datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757313997329059840) (4 pp, sha256 `5ae7456598def8bb`, retrieved 2026-10-09, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-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).
[Datasheet PDF](docs/bzt52c43-datasheet.pdf)