# PTZTE259.1B

**ROHM Semicon** · Zener Diodes · DO-214AC(SMA)

PTZTE259.1B from ROHM Semicon, in a DO-214AC(SMA). 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, marked by the marking bar on the package; zener voltage VZ 9.1 V min to 10.2 V max at IZ 40 mA. |
| 2 | A | passive | Anode, the terminal opposite the marking bar; maximum power dissipation of 1000 mW and junction temperature of 150 °C. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ROHM Semicon |
| Package | DO-214AC(SMA) |
| Category | Diodes |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `PTZTE259.1B`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
- 3D model files: `ptzte259-1b-etched.step` / `ptzte259-1b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ptzte259-1b.step` / `ptzte259-1b.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ROHM Semicon datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603101566740553728) (9 pp, sha256 `5c4b30b904bfac99`, retrieved 2026-10-12, 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/ptzte259-1b-datasheet.pdf)