component
BZT52C18-6AF
Public Made by Adomby adom
FOSAN Zener Diodes, SOD-123. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
main
BZT52C18-6AF
FOSAN · Zener Diodes · SOD-123
BZT52C18-6AF 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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | FOSAN |
| Package | SOD-123 |
| 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 | 16.8 | 19.1 | V | 2 | ||
| Differential resistance (IZT=5mA) | rdif | 50 | 200 | Ω | @IZT=5mA | 2 | |
| Differential resistance (IZK=1mA) | rdif | 10 | 40 | Ω | @IZK=1mA | 2 | |
| Temperature coefficient | SZ | 10.4 | 12.4 | 14 | mV/K | @IZT=5mA | 2 |
| Reverse current | IR | 0.05 | uA | @VR=12.6 V | 2 | ||
| Power dissipation | PD | 500 | mW | Ta=25℃ | 1 | ||
| Thermal resistance junction-ambient | RΘJA | 250 | ℃/W | 1 | |||
| Forward voltage | VF | 0.9 | V | @ IF=10mA | 1 | ||
| Junction and storage temperature | TJ,Tstg | -65 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
BZT52C18-6AF - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
bzt52c18-6af-etched.step/bzt52c18-6af-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzt52c18-6af.step/bzt52c18-6af.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: FOSAN datasheet (4 pp, sha256
17323541e5f89cd5, retrieved 2026-10-21, tier: lcsc) - 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).
# BZT52C18-6AF
**FOSAN** · Zener Diodes · SOD-123
BZT52C18-6AF 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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | FOSAN |
| Package | SOD-123 |
| 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 | 16.8 | | 19.1 | V | | 2 |
| Differential resistance (IZT=5mA) | rdif | | 50 | 200 | Ω | @IZT=5mA | 2 |
| Differential resistance (IZK=1mA) | rdif | | 10 | 40 | Ω | @IZK=1mA | 2 |
| Temperature coefficient | SZ | 10.4 | 12.4 | 14 | mV/K | @IZT=5mA | 2 |
| Reverse current | IR | | | 0.05 | uA | @VR=12.6 V | 2 |
| Power dissipation | PD | | | 500 | mW | Ta=25℃ | 1 |
| Thermal resistance junction-ambient | RΘJA | | | 250 | ℃/W | | 1 |
| Forward voltage | VF | | | 0.9 | V | @ IF=10mA | 1 |
| Junction and storage temperature | TJ,Tstg | -65 | | 150 | ℃ | | 1 |
## CAD (KiCad official)
- Symbol: `BZT52C18-6AF`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files: `bzt52c18-6af-etched.step` / `bzt52c18-6af-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bzt52c18-6af.step` / `bzt52c18-6af.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [FOSAN datasheet](docs/bzt52c18-6af-datasheet.pdf) (4 pp, sha256 `17323541e5f89cd5`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band convention` (convention), consensus `off` (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/bzt52c18-6af-datasheet.pdf)