# LM1K24CA

**Leiditech** · TVS · SMB(DO-214AA)

LM1K24CA from Leiditech, in a SMB(DO-214AA). 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 | Terminal 1 of an unpolarised bidirectional ESD/TVS diode; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised bidirectional ESD/TVS diode; either orientation. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Leiditech |
| Package | SMB(DO-214AA) |
| 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 | PPPM |  |  | 30 | KW | tp = 8/20µs | 1 |
| Peak pulse current | IPPM |  |  | 780 | A | tp = 8/20µs | 1 |
| Reverse leakage current | IR |  |  | 1 | μA | at VR | 2 |
| Breakdown voltage | VBR | 25 |  | 29.5 | V | at IT = 1 mA | 2 |
| Clamping voltage | VC |  |  | 35 | V | at VPP = 2000, surge waveform 1.2/50µs & 8/20µs | 2 |
| Stand-off voltage | VR |  |  | 24 | V | Bi-directional (Bi-Polar), stand-off voltage as printed in part number row | 2 |
| Operating junction and storage temperature range | TJ, TSTG | -55 |  | 150 | °C |  | 1 |
| Lead soldering temperature | TL |  |  | 260 | °C | 10 sec | 1 |

## CAD (KiCad official)

- Symbol: `LM1K24CA`
- Footprint: `Diode_SMD:D_SMB`
- 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
- 3D model files: `lm1k24ca-etched.step` / `lm1k24ca-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm1k24ca.step` / `lm1k24ca.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Leiditech datasheet](docs/lm1k24ca-datasheet.pdf) (4 pp, sha256 `3e9055832b36dacc`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `two-terminal convention` (convention), consensus `off` (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/lm1k24ca-datasheet.pdf)