# DO2300B

**DOINGTER** · MOSFETs · SOT-23

DO2300B 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; gate-source voltage is limited to ±12 V absolute maximum, with threshold of 0.5 V min to 1 V max at ID=250μA. |
| 2 | D | passive | Drain; drain-source voltage is 20 V maximum with continuous drain current of 5.2 A and pulsed drain current of 20.8 A. |
| 3 | S | passive | Source; connected to the body diode anode with continuous diode current of 4 A maximum. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | DOINGTER |
| 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 Voltage | VDS |  |  | 20 | V |  | 1 |
| Gate-Source Voltage | VGS | -12 |  | 12 | V |  | 1 |
| Continuous Drain Current | ID |  |  | 5.2 | A |  | 1 |
| Continuous Drain Current | ID |  |  | 3.6 | A | TA=100℃ | 1 |
| Pulsed Drain Current | IDM |  |  | 20.8 | A |  | 1 |
| Power Dissipation | PD |  |  | 1.2 | W |  | 1 |
| Operating and Storage Junction Temperature Range | TJ, TSTG | -55 |  | 150 | ℃ |  | 1 |
| Thermal Resistance, Junction to Ambient | RƟJA |  |  | 104 | ℃/W |  | 1 |
| Drain-Source Breakdown Voltage | BVDSS | 20 |  |  | V | VGS=0V,ID=250μA | 2 |
| Zero Gate Voltage Drain Current | IDSS |  |  | 1 | μA | VGS=0V, VDS=20V | 2 |
| Gate-Source Leakage Current | IGSS | -100 |  | 100 | nA | VGS=±12V, VDS=0A | 2 |
| Gate-Source Threshold Voltage | VGS(th) | 0.5 | 0.66 | 1 | V | VGS=VDS, ID=250μA | 2 |
| Drain-Source On Resistance | RDS(ON) |  | 23 | 30 | mΩ | VGS=4.5V, ID=6A | 2 |
| Drain-Source On Resistance | RDS(ON) |  | 29 | 35 | mΩ | VGS=2.5V, ID=2.5A | 2 |
| Diode Forward Voltage | VSD |  |  | 1.3 | V | VGS=0V, ISD=2.8A | 2 |
| Continuous Drain Current (body diode) | IS |  |  | 4 | A | VD=VG=0V | 2 |
| Pulsed Drain Current (body diode) | ISM |  |  | 16 | A |  | 2 |

## CAD (KiCad official)

- Symbol: `DO2300B`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `do2300b-etched.step` / `do2300b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `do2300b.step` / `do2300b.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [DOINGTER datasheet](docs/do2300b-datasheet.pdf) (8 pp, sha256 `0ffaa7323422cf22`, 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/do2300b-datasheet.pdf)