# BZT52C3V3S

**Yangzhou Yangjie Elec Tech** · Zener Diodes · SOD-323(SC-90)

BZT52C3V3S from Yangzhou Yangjie Elec Tech, in a SOD-323(SC-90). 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 | Yangzhou Yangjie Elec Tech |
| Package | SOD-323(SC-90) |
| 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 at IZT = 5 mA | Vz | 3.1 | 3.3 | 3.5 | V | IZT = 5 mA; Ta=25℃ | 2 |
| Maximum Zener impedance Zzt | Zzt |  |  | 95 | Ω | IZT = 5 mA | 2 |
| Maximum knee impedance Zzk | Zzk |  |  | 600 | Ω | Izk = 1.0 mA | 2 |
| Maximum reverse current IR | IR |  |  | 5 | µA | VR = 1.0 V | 2 |
| Maximum forward voltage | VF |  |  | 0.9 | V | IF=10mAdc | 1 |
| Power Dissipation | PD |  |  | 200 | mW |  | 1 |
| Storage Temperature Range | Tstg | -55 |  | 150 | °C |  | 1 |
| Maximum Junction Temperature | TJ | -55 |  | 150 | °C |  | 1 |
| Thermal Resistance Junction to Ambient Air | RθJA |  | 650 |  | °C/W |  | 1 |
| Typical Temperature Coefficient |  |  | -3.5 |  | mV/°C |  | 2 |

## CAD (KiCad official)

- Symbol: `BZT52C3V3S`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323(SC-90) (KiCad packages3D, STEP)
- 3D model files: `bzt52c3v3s-etched.step` / `bzt52c3v3s-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bzt52c3v3s.step` / `bzt52c3v3s.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Yangzhou Yangjie Elec Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588915491868192768) (5 pp, sha256 `539a49f715cc3de1`, retrieved 2026-10-14, 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/bzt52c3v3s-datasheet.pdf)