# LC05CI

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

LC05CI from Leiditech, 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 | Bi-directional TVS terminal 1 (no polarity), connects to the protected line or to ground, with 5.0V VRWM and 450W peak pulse power (8/20µs) across the device. |
| 2 | 2 | passive | Bi-directional TVS terminal 2 (no polarity), connects to the protected line or to ground, with 5.0V VRWM and 450W peak pulse power (8/20µs) across the device. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Leiditech |
| 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 standoff voltage (working peak) | VRWM |  |  | 5 | V |  | 2 |
| Breakdown voltage | VBR | 6 |  |  | V | IT = 1 mA | 2 |
| Clamping voltage at 1 A | VC |  | 12 |  | V | @1A | 2 |
| Clamping voltage at 1 A (max) | VC |  |  | 18 | V | @1A | 2 |
| Clamping voltage (max) | Vc |  |  | 25 | V |  | 2 |
| Reverse leakage current | IR |  |  | 0.5 | μA |  | 2 |
| Junction capacitance | C |  | 2 |  | Pf |  | 2 |
| Peak pulse power (8/20 µs) | Ppp |  |  | 450 | W | 8/20µs | 1 |
| ESD per IEC 61000-4-2 (Air) | VESD | -30 |  | 30 | Kv | IEC 61000-4-2 (Air) | 1 |
| ESD per IEC 61000-4-2 (Contact) |  | -30 |  | 30 | Kv | IEC 61000-4-2 (Contact) | 1 |
| Operating temperature range | TJ | -55 |  | 125 | ℃ |  | 1 |
| Storage temperature range | TSTJ | -55 |  | 150 | ℃ |  | 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 | Lead Finish: Matte Tin Case Material: “Green” Molding Compound. | 1 |

## CAD (KiCad official)

- Symbol: `LC05CI`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `lc05ci-etched.step` / `lc05ci-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lc05ci.step` / `lc05ci.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Leiditech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588903976201175040) (4 pp, sha256 `7869f43a886372e7`, retrieved 2026-10-23, 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/lc05ci-datasheet.pdf)