# L2SA1037AKRLT1G

**LRC** · Bipolar (BJT) · SOT-23

L2SA1037AKRLT1G 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 | input | Base terminal of the PNP transistor; the datasheet gives no separate pin rating, and the device limit for emitter-base voltage is V_EBO -6.0 V. |
| 2 | EMITTER | passive | Emitter terminal of the PNP transistor; the emitter-base breakdown voltage is V(BR)EBO -6 V minimum at I_E = -50 µA. |
| 3 | COLLECTOR | passive | Collector terminal of the PNP transistor; the datasheet rates collector-emitter voltage V_CEO at -50 V and continuous collector current I_C at -150 mA. |

## Key specifications

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

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Collector-Emitter Breakdown Voltage | V(BR)CEO | -50 |  |  | V | IC = -1 mA | 1 |
| Emitter-Base Breakdown Voltage | V(BR)EBO | -6 |  |  | V | IE = -50 µA | 1 |
| Collector-Base Breakdown Voltage | V(BR)CBO | -60 |  |  | V | IC = -50 µA | 1 |
| Collector Cutoff Current | ICBO |  |  | -0.1 | µA | VCB = -60 V | 1 |
| Emitter cutoff current | IEBO |  |  | -0.1 | µA | VEB = -6 V | 1 |
| Collector-emitter saturation voltage | VCE(sat) |  |  | -0.5 | V | IC/IB = -50 mA / -5 mA | 1 |
| DC current transfer ratio (R grade, 180~390) | hFE | 180 |  | 390 |  | VCE = -6 V, IC = -1 mA | 1 |
| Output capacitance | Cob |  | 4 | 5 | pF | VCB = -12 V, IE = 0 A, f = 1 MHz | 1 |
| Collector-Emitter Voltage | VCEO |  |  | -50 | V |  | 1 |
| Collector-Base Voltage | VCBO |  |  | -60 | V |  | 1 |
| Emitter-Base Voltage | VEBO |  |  | -6 | V |  | 1 |
| Collector Current, Continuous | IC |  |  | 150 | mAdc |  | 1 |
| Collector power dissipation | PC |  |  | 0.2 | W |  | 1 |
| Junction temperature | Tj |  |  | 150 | °C |  | 1 |
| Storage temperature | Tstg | -55 |  | 150 | °C |  | 1 |
| Transition frequency | fT |  | 140 |  | MHz | VCE = -12 V, IE = 2 mA, f = 30 MHz | 1 |

## CAD (KiCad official)

- Symbol: `L2SA1037AKRLT1G`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `l2sa1037akrlt1g-etched.step` / `l2sa1037akrlt1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `l2sa1037akrlt1g.step` / `l2sa1037akrlt1g.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/8586187901184970752) (4 pp, sha256 `410950d7a86411ba`, retrieved 2026-10-15, 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/l2sa1037akrlt1g-datasheet.pdf)