# BZX84B15

**LGE** · Zener Diodes · SOT-23

BZX84B15 from LGE, in a SOT-23. 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 | A | passive | Anode of the Zener diode, per the SOT-23 internal diagram; the part is rated 350 mW power dissipation and -65 to +150 ℃ operating and storage range. |
| 2 | NC | unconnected | Pin 2 is shown in the SOT-23 diagram with no internal connection to the Zener diode. |
| 3 | K | passive | Cathode of the Zener diode, per the SOT-23 internal diagram; nominal Zener voltage 15 V (14.7 V to 15.3 V) at 5 mA for BZX84B15. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | LGE |
| Package | SOT-23 |
| 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 | 14.7 | 15 | 15.3 | V | IZT = 5 mA | 2 |
| Zener voltage tolerance (B suffix) |  | -2 |  | 2 | % | B suffix: 2% tolerance | 1 |
| Maximum Zener impedance | ZZT |  |  | 30 | Ω | IZT = 5 mA | 2 |
| Maximum Zener impedance (knee) | ZZK |  |  | 200 | Ω | IZK = 1 mA | 2 |
| Maximum reverse current | IR |  |  | 0.05 | µA | VR = 10.5 V | 2 |
| Power dissipation | Pd |  |  | 350 | mW | Ta = 25℃ | 1 |
| Operating and storage temperature range | Tj, Tstg | -65 |  | 150 | ℃ |  | 1 |
| Thermal resistance, junction to ambient air | RθjA |  | 357 |  | ℃/W |  | 1 |

## CAD (KiCad official)

- Symbol: `BZX84B15`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `bzx84b15-etched.step` / `bzx84b15-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bzx84b15.step` / `bzx84b15.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [LGE datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603166574342135808) (4 pp, sha256 `d15212b931be2893`, 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/bzx84b15-datasheet.pdf)