# AZ23C4V7-G3-08

**Vishay Intertech** · Zener Diodes · SOT-23

AZ23C4V7-G3-08 from Vishay Intertech, 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 | K1 | passive | Cathode of the first Zener diode (VZ 4.4 to 5 V, nominal 4.7 V at IZT 5 mA for AZ23C4V7); the other diode is on pin 2 and both share the common anode on pin 3. |
| 2 | K2 | passive | Cathode of the second Zener diode (VZ 4.4 to 5 V, nominal 4.7 V at IZT 5 mA for AZ23C4V7), with its anode tied to the common anode on pin 3. |
| 3 | A | passive | Common anode of both Zener diodes, shared by pins 1 and 2. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Vishay Intertech |
| 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 | 4.4 | 4.7 | 5 | V | at IZT1 = 5 mA, tp = 5 ms | 2 |
| Zener voltage tolerance |  | -5 |  | 5 | % | C grade standard tolerance | 1 |
| Dynamic resistance | ZZ |  | 70 | 78 | Ω | at IZT1 = 5 mA | 2 |
| Dynamic resistance (knee) | ZZK |  |  | 500 | Ω | at IZT2 = 1 mA | 2 |
| Temperature coefficient of Zener voltage | αVZ | -5 |  | 2 | 10-4/°C | at IZT = 5 mA | 2 |
| Power dissipation | Ptot |  |  | 300 | mW | Device on fiberglass substrate | 1 |
| Thermal resistance, junction to ambient air | RthJA |  |  | 420 | K/W | Device on fiberglass substrate | 1 |
| Junction temperature | Tj |  |  | 150 | °C |  | 1 |
| Storage temperature range | Tstg | -65 |  | 150 | °C |  | 1 |
| Operating temperature range | Top | -55 |  | 150 | °C |  | 1 |
| Test current | IZT1 |  | 5 |  | mA |  | 2 |
| Test current 2 | IZT2 |  | 1 |  | mA |  | 2 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | Copper |  | Copper leads 0.012" (0.3 mm) | 6 |

## CAD (KiCad official)

- Symbol: `AZ23C4V7-G3-08`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `az23c4v7-g3-08-etched.step` / `az23c4v7-g3-08-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `az23c4v7-g3-08.step` / `az23c4v7-g3-08.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Vishay Intertech datasheet](docs/az23c4v7-g3-08-datasheet.pdf) (8 pp, sha256 `635927123222f686`, retrieved 2026-10-22, tier: manufacturer)
- **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/az23c4v7-g3-08-datasheet.pdf)