# LMBTA05LT1G

**LRC** · Bipolar (BJT) · SOT-23

LMBTA05LT1G 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 transistor; the datasheet specifies emitter-base breakdown voltage V(BR)EBO of 4.0 V minimum at I_E = 100 µA. |
| 2 | EMITTER | passive | Emitter terminal of the transistor; the device is rated for 500 mA maximum continuous collector current. |
| 3 | COLLECTOR | passive | Collector terminal of the transistor; the LMBTA05 collector-emitter breakdown voltage V(BR)CEO is 60 V minimum and collector-base voltage V_CBO is 60 V. |

## 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 | 60 |  |  | Vdc | I C = 1.0 mAdc, I B = 0 (LMBTA05) | 1 |
| Emitter-Base Breakdown Voltage | V (BR)EBO | 4 |  |  | Vdc | I E = 100 µAdc, I C = 0 | 1 |
| Collector Cutoff Current | I CES |  |  | 0.1 | µAdc | V CE = 60Vdc, I B = 0 | 1 |
| Emitter Cutoff Current | I CBO |  |  | 0.1 | µAdc | V CB = 60Vdc, I E = 0 (LMBTA05) | 1 |
| DC Current Gain | hFE | 100 |  |  |  | I C = 10 mAdc, V CE = 1.0 Vdc | 2 |
| Collector-Emitter Saturation Voltage | VCE(sat) |  |  | 0.25 | Vdc | I C = 100 mAdc, I B = 10 mAdc | 2 |
| Base-Emitter On Voltage | V BE(sat) |  |  | 1.2 | Vdc | I C = 100 mAdc, V CE= 1.0 Vdc | 2 |
| Current-Gain-Bandwidth Product | fT | 100 |  |  | MHz | V CE = 2.0 V, I C = 10mA, f = 100 MHz | 2 |
| Collector-Emitter Voltage | V CEO |  |  | 60 | Vdc | LMBTA05 | 1 |
| Collector-Base Voltage | V CBO |  |  | 60 | Vdc | LMBTA05 | 1 |
| Emitter-Base Voltage | V EBO |  |  | 4 | Vdc |  | 1 |
| Collector Current, Continuous | I C |  |  | 500 | mAdc |  | 1 |
| Junction and Storage Temperature | T J , T stg | -55 |  | 150 | °C |  | 1 |
| Total Device Dissipation (FR-5 Board) | P D |  |  | 225 | mW | FR-5 Board, TA = 25°C | 1 |
| Thermal Resistance, Junction to Ambient (FR-5 Board) | R θJA |  |  | 556 | °C/W | FR-5 Board | 1 |
| Total Device Dissipation (Alumina Substrate) | P D |  |  | 300 | mW | Alumina Substrate, (2) TA = 25°C | 1 |
| Thermal Resistance, Junction to Ambient (Alumina Substrate) | R θJA |  |  | 417 | °C/W | Alumina Substrate | 1 |

## CAD (KiCad official)

- Symbol: `LMBTA05LT1G`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `lmbta05lt1g-etched.step` / `lmbta05lt1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lmbta05lt1g.step` / `lmbta05lt1g.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/8586176285756567552) (3 pp, sha256 `b248b359dec4e7c8`, retrieved 2026-10-18, 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/lmbta05lt1g-datasheet.pdf)