# S9012W

**CBI** · Bipolar (BJT) · SOT-323

S9012W from CBI, 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 | input | Base of the PNP transistor; VEBO max -5 V, emitter-base breakdown V(BR)EBO -5 V min at IE=-100µA. |
| 2 | EMITTER | passive | Emitter of the PNP transistor; VEBO rating -5 V. |
| 3 | COLLECTOR | passive | Collector of the PNP transistor; VCBO -40 V, VCEO -25 V, continuous IC -500 mA, PC 300 mW. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | CBI |
| 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 | V(BR)CBO | -40 |  |  | V | IC= -100µA, IE=0 | 1 |
| Collector-emitter breakdown voltage | V(BR)CEO | -25 |  |  | V | IC= -1mA, IB=0 | 1 |
| Emitter-base breakdown voltage | V(BR)EBO | -5 |  |  | V | IE=-100µA, IC=0 | 1 |
| Collector cut-off current | ICBO |  |  | -0.1 | µA | VCB=-40V, IE=0 | 1 |
| Emitter cut-off current | IEBO |  |  | -0.1 | µA | VEB= -5V, IC=0 | 1 |
| DC current gain | hFE | 120 |  | 400 |  | VCE=-1V, IC= -50mA | 1 |
| Collector-emitter saturation voltage | VCE(sat) |  |  | -0.6 | V | IC=-500mA, IB= -50mA | 1 |
| Base-emitter saturation voltage | VBE(sat) |  |  | -1.2 | V | IC=-500mA, IB= -50mA | 1 |
| Transition frequency | fT | 150 |  |  | MHz | VCE=-6V, IC= -20mA, f=30MHz | 1 |
| Collector output capacitance | Cob |  |  | 5 | pF | VCB=-10V, IE=0, f=1MHz | 1 |
| Collector-base voltage | VCBO | -40 |  |  | V |  | 1 |
| Collector-emitter voltage | VCEO | -25 |  |  | V |  | 1 |
| Emitter-base voltage | VEBO | -5 |  |  | V |  | 1 |
| Collector current, continuous | IC | -500 |  |  | mA |  | 1 |
| Collector power dissipation | PC |  |  | 300 | mW | TA=25℃ | 1 |
| Junction temperature | Tj |  |  | 150 | ℃ |  | 1 |
| Storage temperature | Tstg | -55 |  | 150 | ℃ |  | 1 |

## CAD (KiCad official)

- Symbol: `S9012W`
- Footprint: `Package_TO_SOT_SMD:SOT-323_SC-70`
- 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files: `s9012w-etched.step` / `s9012w-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `s9012w.step` / `s9012w.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [CBI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588946237731319808) (3 pp, sha256 `92ee419d1b557d79`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/s9012w-datasheet.pdf)