# AZ23C13W

**Changjing** · Zener Diodes · SOT-323

AZ23C13W from Changjing, 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 zener diode 1 (13 V class, VZ 12.4-14.1 V at IZT=5.0 mA); the other end of the diode connects to common pin 3. |
| 2 | K2 | passive | Cathode of zener diode 2 (13 V class, VZ 12.4-14.1 V at IZT=5.0 mA); the other end of the diode connects to common pin 3. |
| 3 | A | passive | Common anode of both zener diodes; power dissipation is 200 mW for the package. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| 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 range | VZ | 12.4 |  | 14.1 | V | Short duration test pulse (note 1) | 2 |
| Maximum zener impedance | ZZT |  |  | 25 | Ω | @ IZT=5.0mA | 2 |
| Maximum zener impedance | ZZK |  |  | 110 | Ω | @ IZK=1.0mA | 2 |
| Min reverse voltage | VR | 10 |  |  | V | @IR=0.1 A | 2 |
| Power dissipation | Pd |  |  | 200 | mW | Ta=25℃ | 1 |
| Thermal resistance from junction to ambient | RθJA |  |  | 625 | ℃/W | Ta=25℃ | 1 |
| Operation junction and storage temperature range | TJ,TSTG |  |  | 150 | ℃ |  | 1 |
| Forward voltage | VF |  |  | 0.9 | V | @ IF = 10mA | 1 |
| Typical temperature coefficient | Tc |  | 0.08 |  | %/℃ |  | 2 |

## CAD (KiCad official)

- Symbol: `AZ23C13W`
- Footprint: `Package_TO_SOT_SMD:SOT-323_SC-70`
- 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files: `az23c13w-etched.step` / `az23c13w-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `az23c13w.step` / `az23c13w.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Changjing datasheet](docs/az23c13w-datasheet.pdf) (5 pp, sha256 `9a2d68c3836e2d65`, retrieved 2026-10-31, 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/az23c13w-datasheet.pdf)