# BZT52C68S

**DOWO** · Zener Diodes · SOD-323

BZT52C68S 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 | 64 | 68 | 72 | V | Izt = 2 mA | 2 |
| Maximum Zener impedance | Zzt |  |  | 250 | Ω | @Izt 2 mA | 2 |
| Maximum Zener impedance at knee | Zzk |  |  | 1000 | Ω | @Izk 1.0 mA | 2 |
| Maximum reverse current | IR |  |  | 0.2 | µA | VR = 52.0 V | 2 |
| Typical temperature coefficient |  | 10 |  | 12 | mV/℃ | IZTC = 5 mA | 2 |
| Power dissipation | Pd |  |  | 200 | mW | Device on ceramic PCB 7.6mm x 9.4mm x 0.87mm, pad area 25mm² | 1 |
| Forward voltage | Vf |  |  | 0.9 | V | IF = 10 mA | 1 |
| Storage temperature range | Ts | -65 |  | 150 | ℃ |  | 1 |

## CAD (KiCad official)

- Symbol: `BZT52C68S`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `bzt52c68s-etched.step` / `bzt52c68s-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bzt52c68s.step` / `bzt52c68s.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [DOWO datasheet](docs/bzt52c68s-datasheet.pdf) (5 pp, sha256 `37d186696a47bb9f`, retrieved 2026-10-28, 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/bzt52c68s-datasheet.pdf)