# LESD8D12CBT5G

**LRC** · Electrostatic And Surge Protection (TVS/ESD) · SOD-882

LESD8D12CBT5G from LRC, in a SOD-882. 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 | ESD protection diode terminal 1 for a 12 V working reverse voltage (VRWM 12 V), rated to IEC 61000-4-2 ±30 kV air and ±30 kV contact discharge; the datasheet does not state which terminal is the anode or cathode. |
| 2 | 2 | passive | ESD protection diode terminal 2 for a 12 V working reverse voltage (VRWM 12 V), rated to IEC 61000-4-2 ±30 kV air and ±30 kV contact discharge; the datasheet does not state which terminal is the anode or cathode. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | LRC |
| Package | SOD-882 |
| 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 |
|---|---|---|---|---|---|---|---|
| Peak pulse power (8/20 µs) | PPP |  |  | 120 | W | 8/20 µs surge per IEC 61000-4-5 (Note 1) | 1 |
| Peak pulse current (8/20 µs) | IPP |  |  | 9 | A | 8/20 µs | 1 |
| Junction temperature range | TJ | -55 |  | 150 | ℃ |  | 1 |
| Storage temperature range | Tstg | -55 |  | 150 | ℃ |  | 1 |
| ESD IEC 61000-4-2 contact discharge |  | -30 |  | 30 | kV | IEC 61000-4-2 contact discharge | 1 |
| ESD IEC 61000-4-2 air discharge |  | -30 |  | 30 | kV | IEC 61000-4-2 air discharge | 1 |
| Maximum reverse leakage current | IR |  |  | 50 | nA | VR = 12 V | 2 |
| Reverse stand-off voltage (working peak reverse voltage) | VRWM |  |  | 12 | V |  | 2 |
| Breakdown voltage | VBR | 13 |  | 16 | V | IT = 1 mA | 2 |
| Dynamic resistance | RDYN |  | 0.2 | 0.3 | Ω |  | 2 |
| Junction capacitance | Cj |  | 9 |  | pF | VR = 0 V, f = 1 MHz | 2 |

## CAD (KiCad official)

- Symbol: `LESD8D12CBT5G`
- Footprint: `Diode_SMD:D_SOD-882`
- 3D model: SOD-882 (KiCad packages3D, STEP)
- 3D model files: `lesd8d12cbt5g-etched.step` / `lesd8d12cbt5g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lesd8d12cbt5g.step` / `lesd8d12cbt5g.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [LRC datasheet](docs/lesd8d12cbt5g-datasheet.pdf) (5 pp, sha256 `0101668884c65248`, retrieved 2026-10-21, 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/lesd8d12cbt5g-datasheet.pdf)