# LBSS5240LT1G

**LRC** · Bipolar (BJT) · SOT-23

LBSS5240LT1G 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 | BASE | passive | Base terminal of the PNP low-VCE(sat) transistor; the datasheet gives the emitter-base voltage rating V_EBO as -5.0 V. |
| 2 | EMITTER | passive | Emitter terminal of the PNP low-VCE(sat) transistor; the datasheet rates the collector-emitter voltage V_CEO at -40 V. |
| 3 | COLLECTOR | passive | Collector terminal of the PNP low-VCE(sat) transistor; the datasheet rates the continuous collector current I_C at -2 A and V_CBO at -40 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | LRC |
| Package | SOT-23 |
| Category | Transistors/Thyristors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `LBSS5240LT1G`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `lbss5240lt1g-etched.step` / `lbss5240lt1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lbss5240lt1g.step` / `lbss5240lt1g.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/8588884452995182592) (5 pp, sha256 `57c9c9fc7851f6db`, 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/lbss5240lt1g-datasheet.pdf)