# CDSOD323-T12LC

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

CDSOD323-T12LC from BOURNS, 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 | Bidirectional TVS terminal with 12.0 V working peak voltage, 13.3 V min breakdown at 1 mA and 19.0 V max clamping at 1 A, with specs applying in both directions. |
| 2 | 2 | passive | Bidirectional TVS terminal with 12.0 V working peak voltage, 13.3 V min breakdown at 1 mA and 19.0 V max clamping at 1 A, with specs applying in both directions. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | BOURNS |
| 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 |
|---|---|---|---|---|---|---|---|
| Min. Breakdown Voltage | VBR | 13.3 |  |  | V | @ 1 mA | 1 |
| Maximum Clamping Voltage | VC |  |  | 19 | V | @ IP = 1 A | 1 |
| Maximum Leakage Current | ID |  |  | 1 | µA | @ VWM | 1 |
| Operating Temperature | TL | -55 |  | 150 | ºC | TA = 25 °C unless otherwise noted | 1 |
| Storage Temperature | TSTG | -55 |  | 150 | ºC |  | 1 |
| Peak Pulse Power | PPP |  |  | 350 | W | tp = 8/20 µs | 1 |
| ESD Protection Contact | ESD | -30 |  | 30 | kV | per IEC 61000-4-2, Contact (Min. ±8, Max. ±30) | 1 |
| ESD Protection Air | ESD | -30 |  | 30 | kV | per IEC 61000-4-2, Air (Min. ±15, Max. ±30) | 1 |
| Working Peak Voltage | VM |  | 12 |  | V |  | 1 |
| Typical Clamping Voltage | VC |  | 28.6 |  | V | @ 8/20 µs @ IPP = 11 A | 1 |
| Typical Capacitance | CP |  | 1 |  | pF | @ 0 V, 1 MHz | 1 |

## 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 |  | tin | This is a molded JEDEC SOD-323 package with lead free 100 % Sn plating on the terminations. It weighs approximately 30 mg and has | 3 |

## CAD (KiCad official)

- Symbol: `CDSOD323-T12LC`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `cdsod323-t12lc-etched.step` / `cdsod323-t12lc-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cdsod323-t12lc.step` / `cdsod323-t12lc.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [BOURNS datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590006114965762048) (5 pp, sha256 `b99e9cb55cdc20b6`, 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/cdsod323-t12lc-datasheet.pdf)