# BZX84C30-TP

**MCC Micro Commercial Components** · Zener Diodes · SOT-23

BZX84C30-TP from MCC Micro Commercial Components, 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, shown connected to the diode symbol in the Internal Structure drawing (forward voltage VF 0.9V max at IF=10mA). |
| 2 | NC | unconnected | Pin 2 appears in the Internal Structure drawing with no connection to the diode, so it is treated as not connected. |
| 3 | K | passive | Cathode of the zener diode, shown tied to the diode bar in the Internal Structure drawing; the BZX84C30 has a nominal VZ of 30.00V (28.00V to 32.00V) at IZT=2mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MCC Micro Commercial Components |
| 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 (5% 'C' suffix, BZX84C30) | VZ | 28 | 30 | 32 | V | VZ @ IZT (IZT = 2 mA) | 2 |
| Zener voltage tolerance ('C' suffix) | VZ | -5 |  | 5 | % | Standard tolerance, 'C' suffix (Note 4) | 2 |
| Maximum zener impedance | ZZT |  |  | 80 | Ω | ZZT @ IZT (IZT = 2 mA) | 2 |
| Maximum zener impedance | ZZK |  |  | 300 | Ω | ZZK @ IZK | 2 |
| Maximum reverse current | IR |  |  | 0.1 | µA | IR @ VR = 21.0 V | 2 |
| Typical temperature coefficient | TC | -3.5 |  | 0 | mV/°C | TC @ IZTC | 2 |
| Maximum forward voltage | VF |  |  | 0.9 | V | IF=10mA | 1 |
| Peak forward surge current | IFSM |  |  | 2 | A | Note 4 | 1 |
| Power dissipation | PD |  |  | 350 | mW | Note 3 | 1 |
| Operating junction temperature range |  | -55 |  | 150 | °C |  | 1 |
| Storage temperature range |  | -55 |  | 150 | °C |  | 1 |
| Thermal resistance, junction to ambient |  |  | 357 |  | °C/W | Junction to ambient | 1 |

## CAD (KiCad official)

- Symbol: `BZX84C30-TP`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `bzx84c30-tp-etched.step` / `bzx84c30-tp-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bzx84c30-tp.step` / `bzx84c30-tp.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MCC Micro Commercial Components datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8600688437246496768) (5 pp, sha256 `0af0828c87be9be3`, 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/bzx84c30-tp-datasheet.pdf)