component
BZT52C51S
Public Made by Adomby adom
DOWO Zener Diodes, SOD-323. 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
markdownBZT52C51S
DOWO · Zener Diodes · SOD-323
BZT52C51S from DOWO, in a SOD-323. 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 | DOWO |
| Package | SOD-323 |
| 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 | 48 | 51 | 54 | V | @Izt=2mA | 2 |
| Maximum Zener Impedance | Zzt | 100 | Ω | @Izt=2mA | 2 | ||
| Maximum Zener Impedance (knee) | Zzk | 750 | Ω | @Izk=1.0mA | 2 | ||
| Maximum Reverse Current | IR | 0.1 | uA | VR=38.0V | 2 | ||
| Temperature Coefficient of Zener Voltage | IZTC | 10 | 12 | mV/℃ | Test current 5 mA | 2 | |
| Power Dissipation | Pd | 200 | mW | TA = 25℃ | 1 | ||
| Forward Voltage | Vf | 0.9 | V | IF=10mA | 1 | ||
| Storage temperature range | Ts | -65 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
BZT52C51S - Footprint:
Diode_SMD:D_SOD-323 - 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files:
bzt52c51s-etched.step/bzt52c51s-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzt52c51s.step/bzt52c51s.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: DOWO datasheet (5 pp, sha256
37d186696a47bb9f, retrieved 2026-10-22, 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).