component
DO3401B
Public Made by Adomby adom
DOINGTER MOSFETs, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownDO3401B
DOINGTER · MOSFETs · SOT-23
DO3401B 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 limited to ±12 V, threshold VGS(th) -0.6 V to -1.2 V at ID=-250μA. |
| 2 | D | passive | Drain; drain-source voltage -30 V, continuous drain current -4.2 A at TA=25℃, pulsed -16.8 A. |
| 3 | S | passive | Source of the P-channel MOSFET; RDS(ON) below 50 mΩ at VGS=-10V (typ 43 mΩ). |
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 | -30 | V | 1 | |||
| Gate-Source Voltage | VGS | -12 | 12 | V | 1 | ||
| Continuous Drain Current | ID | -4.2 | A | TA=25℃ | 1 | ||
| Continuous Drain Current | ID | -3 | A | TA=100℃ | 1 | ||
| Pulsed Drain Current | IDM | -16.8 | A | Repetitive rating: pulse width limited by maximum junction temperature (note 2) | 1 | ||
| Power Dissipation | PD | 1.2 | W | 1 | |||
| Operating and Storage Junction Temperature Range | TJ, TSTG | -55 | 150 | ℃ | 1 | ||
| Thermal Resistance, Junction to Ambient | RθJA | 104 | ℃/W | 1 | |||
| Drain-Source Breakdown Voltage | BVDSS | -30 | V | VGS=0V, ID=-250μA | 2 | ||
| Zero Gate Voltage Drain Current | IDSS | -1 | μA | VGS=0V, VDS=-30V | 2 | ||
| Gate-Source Leakage Current | IGSS | -100 | 100 | nA | VGS=±12V, VDS=0A | 2 | |
| Gate-Source Threshold Voltage | VGS(th) | -0.6 | -1.2 | V | VGS=VDS, ID=-250μA | 2 | |
| Drain-Source On-State Resistance | RDS(ON) | 43 | 50 | mΩ | VGS=-10V, ID=-4.3A | 2 | |
| Drain-Source On-State Resistance | RDS(ON) | 47 | 61 | mΩ | VGS=-4.5V, ID=-3.5A | 2 | |
| Drain-Source On-State Resistance | RDS(ON) | 56 | 72 | mΩ | VGS=-2.5V, ID=-2.4A | 2 | |
| Diode Forward Voltage | VSD | -0.7 | -1 | V | IS=-1A, VGS=0V | 2 | |
| Continuous Drain Current (body diode) | IS | -4.2 | A | VD=VG=0V | 2 | ||
| Pulsed Drain Current (body diode) | ISM | -16.8 | A | 2 |
CAD (KiCad official)
- Symbol:
DO3401B - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
do3401b-etched.step/do3401b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);do3401b.step/do3401b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: DOINGTER datasheet (7 pp, sha256
9d7a10c5a4d37261, retrieved 2026-10-19, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).