# DO2301B

**DOINGTER** · MOSFETs · SOT-23

DO2301B from DOINGTER, 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 of the P-channel MOSFET, with a Gate-Source voltage rating of ±12 V and a threshold of -0.5 V min to -1 V max at ID=250 µA. |
| 2 | D | passive | Drain of the P-channel MOSFET, rated for VDS of -20 V and continuous drain current of -3 A at TA=25℃ (pulsed -12 A). |
| 3 | S | passive | Source of the P-channel MOSFET, with RDS(ON) of 43 mΩ typ and 55 mΩ max at VGS=-4.5 V and ID=-3 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | DOINGTER |
| Package | SOT-23 |
| Category | Transistors/Thyristors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `DO2301B`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `do2301b-etched.step` / `do2301b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `do2301b.step` / `do2301b.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [DOINGTER datasheet](docs/do2301b-datasheet.pdf) (6 pp, sha256 `2729790ba30ac542`, retrieved 2026-10-09, 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/do2301b-datasheet.pdf)