# UMZ16NT106

**ROHM Semicon** · Zener Diodes · SOT-323

UMZ16NT106 from ROHM Semicon, in a SOT-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 | K1 | passive | Cathode of the first Zener diode, with VZ 15.85 to 16.51 V at IZ=5mA and 200 mW power dissipation per diode. |
| 2 | K2 | passive | Cathode of the second Zener diode, with VZ 15.85 to 16.51 V at IZ=5mA and 200 mW power dissipation per diode. |
| 3 | A | passive | Common anode of both Zener diodes (common anode configuration). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ROHM Semicon |
| Package | SOT-323 |
| Category | Diodes |
| Pins | 3 |

## 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 | 15.85 |  | 16.51 | V | IZ=5mA | 1 |
| Reverse current | IR |  |  | 0.1 | μA | VR=12V | 1 |
| Dynamic impedance | ZZ |  |  | 50 | Ω | IZ=5mA | 1 |
| Zener impedance | ZZk |  |  | 80 | Ω | IZ=0.5mA | 1 |
| Power dissipation (rating per diode) | P |  |  | 200 | mW | Ta=25°C; rating of per diode | 1 |
| Junction temperature | Tj |  |  | 150 | °C | Ta=25°C | 1 |
| Storage temperature | Tstg | -55 |  | 150 | °C | Ta=25°C | 1 |

## CAD (KiCad official)

- Symbol: `UMZ16NT106`
- Footprint: `Package_TO_SOT_SMD:SOT-323_SC-70`
- 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files: `umz16nt106-etched.step` / `umz16nt106-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `umz16nt106.step` / `umz16nt106.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/8590225615170674688) (5 pp, sha256 `ac28e6e215cf3e3f`, retrieved 2026-10-17, 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/umz16nt106-datasheet.pdf)