# ESD3Z3V3

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

ESD3Z3V3 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 | Cathode | passive | Cathode terminal of the ESD3Z3V3 TVS diode; the datasheet gives no separate electrical limit for this pin beyond the device ratings (reverse stand-off 3.3 V, peak pulse power 350 W at 8/20 µs). |
| 2 | Anode | passive | Anode terminal of the ESD3Z3V3 TVS diode; the datasheet gives no separate electrical limit for this pin beyond the device ratings (reverse stand-off 3.3 V, peak pulse power 350 W at 8/20 µs). |

## 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 |
|---|---|---|---|---|---|---|---|
| Reverse stand-off voltage | VRWM |  |  | 3.3 | V |  | 1 |
| Reverse current | IR |  |  | 10 | µA | at VRWM | 1 |
| Breakdown voltage | VBR | 5 |  |  | V | at IT = 1 mA | 1 |
| Clamping voltage | VC |  |  | 8.4 | V | at IPP = 5 A | 1 |
| Clamping voltage | VC |  |  | 14.1 | V | at IPP = 16 A | 1 |
| Capacitance | Cj |  |  | 105 | pF | at f = 1 MHz | 1 |
| Forward voltage | VF |  |  | 0.9 | V | at IF = 10 mA | 1 |
| Peak pulse power | Ppk |  |  | 350 | W | tp = 8/20 µs | 1 |
| Peak pulse current | IPP |  |  | 24 | A | tp = 8/20 µs | 1 |
| ESD voltage | VPP |  |  | 30 | KV | HRB waveform per IEC61000-4-2 | 1 |
| Operating junction temperature | Tj | -55 |  | 125 | °C |  | 1 |
| Storage temperature range | Tstg | -55 |  | 150 | °C |  | 1 |

## CAD (KiCad official)

- Symbol: `ESD3Z3V3`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `esd3z3v3-etched.step` / `esd3z3v3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `esd3z3v3.step` / `esd3z3v3.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/8590920830904332288) (3 pp, sha256 `c6a728c450c79f21`, retrieved 2026-11-07, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-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/esd3z3v3-datasheet.pdf)