# BZX84C3V3A

**Shandong Jingdao Microelectronics** · Zener Diodes · SOT-23

BZX84C3V3A from Shandong Jingdao Microelectronics, 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 single Zener diode (Suffix A), shown connected to the diode in the page 1 schematic. |
| 2 | NC | unconnected | Not connected internally in the Suffix A single-diode schematic. |
| 3 | K | passive | Cathode of the single Zener diode (Suffix A), with a nominal Zener voltage of 3.3 V at 5 mA for the BZX84C3V3A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Shandong Jingdao Microelectronics |
| Package | SOT-23 |
| Category | Diodes |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `BZX84C3V3A`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `bzx84c3v3a-etched.step` / `bzx84c3v3a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bzx84c3v3a.step` / `bzx84c3v3a.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Shandong Jingdao Microelectronics datasheet](docs/bzx84c3v3a-datasheet.pdf) (4 pp, sha256 `abb7c0e41de9a21a`, retrieved 2026-10-28, 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/bzx84c3v3a-datasheet.pdf)