# MM3Z3V3BW

**JSMSEMI** · Zener Diodes · SOD-323

MM3Z3V3BW from JSMSEMI, 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 | Cathode | passive | Cathode of the zener diode; for MM3Z3V3BW the zener voltage is 3.23 V min, 3.3 V nom, 3.37 V max at IZT = 5 mA, with total power dissipation max 300 mW. |
| 2 | Anode | passive | Anode of the zener diode; operating and storage temperature range is -55 to +150 °C. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | JSMSEMI |
| Package | SOD-323 |
| Category | Diodes |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `MM3Z3V3BW`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `mm3z3v3bw-etched.step` / `mm3z3v3bw-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mm3z3v3bw.step` / `mm3z3v3bw.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [JSMSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590197816191578112) (3 pp, sha256 `dd1ba0e401c19961`, retrieved 2026-10-23, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (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/mm3z3v3bw-datasheet.pdf)