# DESD3Z3V3

**CBI** · ESD And Surge Protection (TVS/ESD) · SOD-323

DESD3Z3V3 from CBI, in a SOD-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 | 1 | passive | One terminal of the bi-directional ESD protection diode for one line, with 3.3V reverse stand-off voltage; the device is bi-directional so polarity is not specified. |
| 2 | 2 | passive | Other terminal of the bi-directional ESD protection diode for one line, with 3.3V reverse stand-off voltage; the device is bi-directional so polarity is not specified. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | CBI |
| Package | SOD-323 |
| Category | Circuit Protection |
| Pins | 2 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| IEC 61000-4-2 ESD Voltage Air | VESD | -25 |  | 25 | kV | Air model; ten non-repetitive ESD pulses | 2 |
| IEC 61000-4-2 ESD Voltage Contact | VESD | -25 |  | 25 | kV | Contact model; ten non-repetitive ESD pulses | 2 |
| ESD Voltage Human Body Model | VESD | -16 |  | 16 | kV | JESD22-A114-B | 2 |
| ESD Voltage Machine Model | VESD | -0.4 |  | 0.4 | kV | Machine model | 2 |
| Peak Pulse Power | PPP |  |  | 70 | W | Non-repetitive 8/20µs, IEC61000-4-5, Ta=25℃ | 2 |
| Peak Pulse Current | IPP |  |  | 7 | A | Non-repetitive 8/20µs, IEC61000-4-5, Ta=25℃ | 2 |
| Lead Solder Temperature | TL |  |  | 260 | ℃ | Maximum, 10 second duration | 2 |
| Junction Temperature | Tj |  |  | 150 | ℃ |  | 2 |
| Storage Temperature Range | Tstg | -55 |  | 150 | ℃ |  | 2 |
| Reverse Stand-off Voltage |  |  | 3.3 |  | V | Features list | 1 |
| Capacitance |  |  |  | 15 | pF | Features list, Max. | 1 |

## CAD (KiCad official)

- Symbol: `DESD3Z3V3`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `desd3z3v3-etched.step` / `desd3z3v3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `desd3z3v3.step` / `desd3z3v3.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [CBI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590921053105704960) (5 pp, sha256 `994810f13eaa4495`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text), consensus `claude-sonnet-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/desd3z3v3-datasheet.pdf)