# YFW2302B

**YFW** · MOSFETs · SOT-23

YFW2302B from YFW, 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 | G | input | Gate; gate-source voltage limited to ±12 V, with threshold VGS(th) of 0.52 to 0.9 V at ID=250 µA. |
| 2 | S | passive | Source; body-diode continuous current up to 3.0 A and drain-source voltage rating of 20 V. |
| 3 | D | passive | Drain; continuous current 3.2 A at TA=25°C (pulsed 14 A) with VDS rating of 20 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | YFW |
| 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 |
|---|---|---|---|---|---|---|---|
| Drain-Source Breakdown Voltage | BVDSS | 20 | 21 |  | V | VGS=0V, ID=250uA | 2 |
| Zero Gate Voltage Drain Current | IDSS |  |  | 1 | μA | VDS=20V, VGS=0V, TJ=25℃ | 2 |
| Gate-Body Leakage Current | IGSS | -100 |  | 100 | nA | VGS=±12V, VDS=0V | 2 |
| Gate-Threshold Voltage | VGS(th) | 0.52 | 0.66 | 0.9 | V | VDS=VGS, ID=250uA | 2 |
| Static Drain-Source On-Resistance | RDS(ON) |  | 43 | 56 | mΩ | VGS=4.5V, ID=2.0A | 2 |
| Static Drain-Source On-Resistance | RDS(ON) |  | 58 | 78 | mΩ | VGS=2.5V, ID=1.5A | 2 |
| Maximum Body-Diode Continuous Current | IS |  |  | 3 | A |  | 2 |
| Diode Forward Voltage | VSD |  |  | 1.2 | V | VGS=0V, IS=3.0A | 2 |
| Drain-Source Voltage | VDS |  |  | 20 | V |  | 1 |
| Gate - Source Voltage | VGS | -12 |  | 12 | V |  | 1 |
| Continuous Drain Current | ID |  |  | 3.2 | A | VGS @ 4.5V @TA=25℃ | 1 |
| Continuous Drain Current | ID |  |  | 1.8 | A | VGS @ 4.5V @TA=70℃ | 1 |
| Pulsed Drain Current | IDM |  |  | 14 | A |  | 1 |
| Total Power Dissipation | PD |  |  | 0.7 | W | @TA=25℃ | 1 |
| Operating Junction Temperature Range | TJ , TSTG | -55 |  | 150 | °C |  | 1 |
| Thermal Resistance Junction-to-Ambient | RθJA |  | 178 |  | °C/W | @Steady State | 1 |

## CAD (KiCad official)

- Symbol: `YFW2302B`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `yfw2302b-etched.step` / `yfw2302b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `yfw2302b.step` / `yfw2302b.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [YFW datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603152082535141376) (5 pp, sha256 `89df5fcc0312dcb0`, retrieved 2026-10-17, 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/yfw2302b-datasheet.pdf)