# MM1W18L

**GOODWORK** · Zener Diodes · SOD-123FL

MM1W18L from GOODWORK, in a SOD-123FL. 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 (zener bar side of the diode symbol); zener reverse voltage for MM1W18L is 16.8 V min / 18 V nom / 19.2 V max at IZT = 14 mA. |
| 2 | A | passive | Anode; the diode is rated for 1 W power dissipation at TL=75°C and a forward voltage of 1.2 V at IF = 200 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | GOODWORK |
| Package | SOD-123FL |
| Category | Diodes |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `MM1W18L`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123FL (KiCad packages3D, STEP)
- 3D model files: `mm1w18l-etched.step` / `mm1w18l-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mm1w18l.step` / `mm1w18l.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [GOODWORK datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757963291799244800) (5 pp, sha256 `6801a7a04115ca09`, 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/mm1w18l-datasheet.pdf)