# BZX584B12V

**Yangzhou Yangjie Elec Tech** · Zener Diodes · SOD-523(SC-79)

BZX584B12V from Yangzhou Yangjie Elec Tech, in a SOD-523(SC-79). 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-523(SC-79) |
| 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 | 11.76 | 12 | 12.24 | V | IZT = 5 mA | 2 |
| Zener dynamic impedance at IZT | Zzt |  |  | 25 | Ω | IZT = 5 mA | 2 |
| Zener knee dynamic impedance | Zzk |  |  | 141 | Ω | Izk = 1 mA | 2 |
| Reverse current | IR |  |  | 0.09 | μA | VR = 8 V | 2 |
| Power dissipation at Ta=25℃ | PD |  |  | 200 | mW | Ta = 25℃ | 1 |
| Storage temperature range | Tstg | -55 |  | 150 | °C |  | 1 |
| Maximum junction temperature | TJ | -55 |  | 150 | °C |  | 1 |
| Forward voltage | VF |  |  | 1 | V | @10mA | 1 |
| Thermal resistance junction to ambient air | RθJA |  |  | 625 | °C/W | Junction to Ambient Air* | 1 |

## CAD (KiCad official)

- Symbol: `BZX584B12V`
- Footprint: `Diode_SMD:D_SOD-523`
- 3D model: SOD-523(SC-79) (KiCad packages3D, STEP)
- 3D model files: `bzx584b12v-etched.step` / `bzx584b12v-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bzx584b12v.step` / `bzx584b12v.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Yangzhou Yangjie Elec Tech datasheet](docs/bzx584b12v-datasheet.pdf) (5 pp, sha256 `337d56c6b13bc12b`, retrieved 2026-10-13, 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/bzx584b12v-datasheet.pdf)