# 3EZ12D5

**LGE** · Zener Diodes · DO-15

3EZ12D5 from LGE, in a DO-15. 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 lead at the colour-band end of the DO-15 body; it goes positive relative to the anode in zener breakdown (3EZ12D5: VZ 12 V at IZT 63 mA, PD 3.0 W at TL = 75 °C). |
| 2 | A | passive | Anode, the lead at the end opposite the colour band; the forward voltage is at most 1.5 V at IF = 200 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | LGE |
| Package | DO-15 |
| Category | Diodes |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `3EZ12D5`
- Footprint: `Diode_THT:D_DO-15_P12.70mm_Horizontal`
- 3D model: DO-15 (KiCad packages3D, STEP)

## Provenance

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

- **Datasheet:** [LGE datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603112993887055872) (3 pp, sha256 `ab0d364575df7b21`, retrieved 2026-10-13, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-5-5` (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/3ez12d5-datasheet.pdf)