# DZ23C3V3

**Changjing** · Zener Diodes · SOT-23

DZ23C3V3 from Changjing, 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 | A1 | passive | Anode of the first zener diode (DZ23C3V3: VZ 3.1-3.5V at IZT=5.0mA), with the cathode common at pin 3. |
| 2 | A2 | passive | Anode of the second zener diode (DZ23C3V3: VZ 3.1-3.5V at IZT=5.0mA), with the cathode common at pin 3. |
| 3 | K | passive | Common cathode of the two zener diodes; total power dissipation is 300mW. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| 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 Range | VZ | 3.1 |  | 3.5 | V | Note 2: short duration pulse test | 2 |
| Maximum Zener Impedance | ZZT |  |  | 95 | Ω | @ IZT = 5.0mA, f = 1kHz (Note 3) | 2 |
| Maximum Zener Impedance | ZZK |  |  | 500 | Ω | @ IZK = 1.0mA, f = 1kHz (Note 3) | 2 |
| Typical Temperature Coefficient | TC |  | -0.055 |  | %/°C |  | 2 |
| Forward Voltage | VF |  |  | 0.9 | V | @ IF = 10mA; Ta=25℃ unless otherwise specified | 1 |
| Power Dissipation | Pd |  |  | 300 | mW | Ta=25℃; Note 1: valid provided device terminals are kept at ambient temperature | 1 |
| Operating and Storage Temperature Range | Tj,TSTG | -55 |  | 150 | ℃ | Ta=25℃ unless otherwise specified | 1 |
| Thermal Resistance, Junction to Ambient Air | RθJA |  | 417 |  | ℃/W | Junction to ambient air | 1 |

## CAD (KiCad official)

- Symbol: `DZ23C3V3`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `dz23c3v3-etched.step` / `dz23c3v3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `dz23c3v3.step` / `dz23c3v3.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Changjing datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590927082920886272) (5 pp, sha256 `0c5eb9fff9c7abe1`, 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/dz23c3v3-datasheet.pdf)