# BC848AW

**MSKSEMI** · Bipolar (BJT) · SOT-323

BC848AW from MSKSEMI, in a SOT-323. 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 | NPN transistor base terminal; the datasheet states no separate pin limit, so operate within the absolute maximum ratings (IC 0.1 A continuous, PC 150 mW, junction/storage temperature -55 to 150 ℃). |
| 2 | EMITTER | passive | NPN transistor emitter terminal; the datasheet states no separate pin limit, and the emitter-base voltage rating is VEBO 5 V for the BC848W type. |
| 3 | COLLECTOR | passive | NPN transistor collector terminal; the datasheet states no separate pin limit, and the collector-emitter voltage rating is VCEO 30 V for the BC848W type. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MSKSEMI |
| Package | SOT-323 |
| 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-base breakdown voltage (BC848W column) | VCBO | 30 |  |  | V | IC=10µA, IE=0 | 3 |
| Collector-emitter breakdown voltage (BC848W column) | VCEO | 30 |  |  | V | IC=10mA, IB=0 | 3 |
| Emitter-base breakdown voltage (BC848W column) | VEBO | 5 |  |  | V | IE=1µA, IC=0 | 3 |
| Collector cutoff current | ICBO |  |  | 15 | nA | VCB=30V | 3 |
| Collector-emitter saturation voltage | VCE(sat) |  |  | 0.25 | V | IC=10mA, IB=0.5mA | 3 |
| Collector-emitter saturation voltage | VCE(sat) |  |  | 0.6 | V | IC=100mA, IB=5mA | 3 |
| Base-emitter saturation voltage | VBE(sat) |  |  | 0.7 | V | IC=10mA, IB=0.5mA | 3 |
| Base-emitter saturation voltage | VBE(sat) |  |  | 0.9 | V | IC=100mA, IB=5mA | 3 |
| Base-emitter voltage | VBE(on) | 580 | 660 | 700 | mV | VCE=5V, IC=2mA | 3 |
| Base-emitter voltage | VBE(on) |  |  | 770 | mV | VCE=5V, IC=10mA | 3 |
| Collector output capacitance | Cob |  |  | 4.5 | pF | VCB=10V, f=1MHz | 3 |
| Collector-emitter voltage (BC848W) | VCEO |  |  | 30 | V | Ta=25℃ | 2 |
| Collector-base voltage (BC848W) | VCBO |  |  | 30 | V | Ta=25℃ | 2 |
| Emitter-base voltage (BC848W) | VEBO |  |  | 5 | V | Ta=25℃ | 2 |
| Collector current, continuous | IC |  |  | 0.1 | A | Ta=25℃ | 2 |
| Collector power dissipation | PC |  |  | 150 | mW | Ta=25℃ | 2 |
| Operation junction and storage temperature range | TJ,Tstg | -55 |  | 150 | ℃ |  | 2 |
| Thermal resistance, junction to ambient | RθJA |  | 833 |  | ℃/W |  | 2 |

## CAD (KiCad official)

- Symbol: `BC848AW`
- Footprint: `Package_TO_SOT_SMD:SOT-323_SC-70`
- 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files: `bc848aw-etched.step` / `bc848aw-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bc848aw.step` / `bc848aw.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MSKSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590454341560795136) (6 pp, sha256 `febe3f693478ca7f`, retrieved 2026-10-17, 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/bc848aw-datasheet.pdf)