# BC2302T-2.8A

**CBI** · MOSFETs · SOT-523

BC2302T-2.8A from CBI, in a SOT-523. 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 | GATE | input | Gate of the N-channel 20 V MOSFET, rated for a gate-source voltage VGS of ±8 V. |
| 2 | SOURCE | passive | Source of the N-channel MOSFET, with a continuous source-drain diode conduction current IS of 0.6 A. |
| 3 | DRAIN | passive | Drain of the N-channel MOSFET, rated for a drain-source voltage VDS of 20 V and a continuous drain current ID of 2.8 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | CBI |
| Package | SOT-523 |
| Category | Triode/MOS Tube/Transistor |
| 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 |
|---|---|---|---|---|---|---|---|
| Drain-Source Voltage | VDS |  |  | 20 | V |  | 1 |
| Gate-Source Voltage | VGS | -8 |  | 8 | V |  | 1 |
| Continuous Drain Current | ID |  |  | 2.8 | A |  | 1 |
| Continuous Source-Drain Current (Diode Conduction) | IS |  |  | 0.6 | A |  | 1 |
| Power Dissipation | PD |  |  | 0.35 | W |  | 1 |
| Operating Junction Temperature | TJ |  |  | 150 | ℃ |  | 1 |
| Storage Temperature | TSTG | -55 |  | 150 | ℃ |  | 1 |
| Thermal Resistance from Junction to Ambient | RθJA |  |  | 357 | ℃/W | t≤5s | 1 |
| Drain-source breakdown voltage | V(BR)DSS | 20 |  |  | V | VGS = 0V, ID =10µA | 2 |
| Gate-threshold voltage | VGS(th) | 0.65 | 0.95 | 1.2 | V | VDS =VGS, ID =50µA | 2 |
| Gate-body leakage | IGSS | -100 |  | 100 | nA | VDS =0V, VGS =±8V | 2 |
| Zero gate voltage drain current | IDSS |  |  | 1 | µA | VDS =20V, VGS =0V | 2 |
| Drain-source on-resistance | rDS(on) |  | 0.045 | 0.06 | Ω | VGS =4.5V, ID =2.8A | 2 |
| Drain-source on-resistance | rDS(on) |  | 0.07 | 0.115 | Ω | VGS =2.5V, ID =2.0A | 2 |
| Diode forward voltage | VSD |  | 0.76 | 1.2 | V | IS=0.94A,VGS=0V | 2 |
| Forward transconductance | gfs |  | 8 |  | S | VDS =5V, ID =2.0A | 2 |

## CAD (KiCad official)

- Symbol: `BC2302T-2.8A`
- Footprint: `Package_TO_SOT_SMD:SOT-523`
- 3D model: SOT-523, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.8 mm nominal SOT-523 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files: `bc2302t-2-8a-etched.step` / `bc2302t-2-8a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bc2302t-2-8a.step` / `bc2302t-2-8a.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [CBI datasheet](docs/bc2302t-2-8a-datasheet.pdf) (4 pp, sha256 `ec20ce20fe1d6cef`, retrieved 2026-11-05, 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/bc2302t-2-8a-datasheet.pdf)