# L1SS181LT1G

**LRC** · Switching Diodes · SOT-23

L1SS181LT1G from LRC, in a SOT-23. 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 | Diode cathode terminal; the datasheet gives a reverse voltage VR of 80 V and an average forward current IO of 100 mA for the device (unit rating). |
| 2 | CATHODE | passive | Diode cathode terminal; the datasheet gives a reverse voltage VR of 80 V and an average forward current IO of 100 mA for the device (unit rating). |
| 3 | ANODE | passive | Diode anode terminal; the datasheet gives a maximum peak reverse voltage VRM of 85 V and a maximum peak forward current IFM of 300 mA (unit rating). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | LRC |
| Package | SOT-23 |
| Category | Diodes |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `L1SS181LT1G`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `l1ss181lt1g-etched.step` / `l1ss181lt1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `l1ss181lt1g.step` / `l1ss181lt1g.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [LRC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586176301350719488) (3 pp, sha256 `538711268a930740`, retrieved 2026-10-09, 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/l1ss181lt1g-datasheet.pdf)