# AZ23C3V9

**Yangzhou Yangjie Elec Tech** · Zener Diodes · SOT-23(TO-236)

AZ23C3V9 from Yangzhou Yangjie Elec Tech, in a SOT-23(TO-236). 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 zener diode 1 (3.7 V min to 4.1 V max, 3.9 V typ at IZT = 5 mA for the AZ23C3V9). |
| 2 | K2 | passive | Cathode of zener diode 2 (3.7 V min to 4.1 V max, 3.9 V typ at IZT = 5 mA for the AZ23C3V9). |
| 3 | A | passive | Common anode of both zener diodes, shared by the two dual zeners in the common-anode configuration. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Yangzhou Yangjie Elec Tech |
| Package | SOT-23(TO-236) |
| Category | Diodes |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `AZ23C3V9`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23(TO-236) (KiCad packages3D, STEP)
- 3D model files: `az23c3v9-etched.step` / `az23c3v9-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `az23c3v9.step` / `az23c3v9.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Yangzhou Yangjie Elec Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590226857666260992) (5 pp, sha256 `d6a96b89b3960da4`, retrieved 2026-10-13, 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/az23c3v9-datasheet.pdf)