component
BZT52C3V3-W3
Public Made by Adomby adom
SY(顺烨) 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
BZT52C3V3-W3
SY(顺烨) · Zener Diodes · SOD-123
BZT52C3V3-W3 from SY(顺烨), 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 | SY(顺烨) |
| 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 (BZT52C3V3, marking W3) | VZT | 3.1 | 3.3 | 3.5 | V | at IZT = 5 mA; tested with pulses (20 ms) | 2 |
| Forward voltage | VF | 0.9 | V | @ IF=10mA | 1 | ||
| Power dissipation | Pd | 500 | mW | @ Ta=25°C | 1 | ||
| Junction temperature | Tj | 150 | °C | 1 | |||
| Storage temperature range | Tstg | -65 | 150 | °C | 1 | ||
| Typical thermal resistance, junction to ambient | RθJA | 305 | °C/W | P.C.B. mounted with 2.0" x 2.0" (5 x 5 cm) copper pad areas, footnote (1) | 1 |
CAD (KiCad official)
- Symbol:
BZT52C3V3-W3 - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
bzt52c3v3-w3-etched.step/bzt52c3v3-w3-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzt52c3v3-w3.step/bzt52c3v3-w3.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: SY(顺烨) datasheet (3 pp, sha256
64def51f91744e17, retrieved 2026-10-17, 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).
# BZT52C3V3-W3
**SY(顺烨)** · Zener Diodes · SOD-123
BZT52C3V3-W3 from SY(顺烨), 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 | SY(顺烨) |
| 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 (BZT52C3V3, marking W3) | VZT | 3.1 | 3.3 | 3.5 | V | at IZT = 5 mA; tested with pulses (20 ms) | 2 |
| Forward voltage | VF | | | 0.9 | V | @ IF=10mA | 1 |
| Power dissipation | Pd | | | 500 | mW | @ Ta=25°C | 1 |
| Junction temperature | Tj | | | 150 | °C | | 1 |
| Storage temperature range | Tstg | -65 | | 150 | °C | | 1 |
| Typical thermal resistance, junction to ambient | RθJA | | 305 | | °C/W | P.C.B. mounted with 2.0" x 2.0" (5 x 5 cm) copper pad areas, footnote (1) | 1 |
## CAD (KiCad official)
- Symbol: `BZT52C3V3-W3`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files: `bzt52c3v3-w3-etched.step` / `bzt52c3v3-w3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bzt52c3v3-w3.step` / `bzt52c3v3-w3.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [SY(顺烨) datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590906498631479296) (3 pp, sha256 `64def51f91744e17`, retrieved 2026-10-17, 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/bzt52c3v3-w3-datasheet.pdf)