component

DO3402AA

Public Made by Adom

by adom

DOINGTER MOSFETs, SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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DO3402AA

DOINGTER · MOSFETs · SOT-23-3

DO3402AA from DOINGTER, in a SOT-23-3. 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; controls the channel, with VGS rated ±12 V maximum and threshold VGS(th) 0.5 V min to 1.3 V max at ID=250μA.
2 D passive Drain; VDS rated 30 V maximum with continuous drain current of 3 A at TA=25℃ and pulsed 12 A.
3 S passive Source; body-diode source current is 2.5 A (IS) and 10 A pulsed (ISM).

Key specifications

Parameter Value
Manufacturer DOINGTER
Package SOT-23-3
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 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) 0.5 0.9 1.3 V VGS=VDS, ID=250μA 2
Drain-Source On Resistance RDS(ON) 35 42 mΩ VGS=10V,ID=4A 2
Drain-Source On Resistance RDS(ON) 39 48 mΩ VGS=4.5V,ID=3A 2
Drain-Source On Resistance RDS(ON) 51 70 mΩ VGS=2.5V,ID=2A 2
Forward Voltage VSD 1.2 V VGS=0V,IS=4.2A 2
Source drain current (Body Diode) lS 2.5 A 2
Source Diode Forward Current lSM 10 A 2
Drain-Source Voltage VDS 30 V 1
Gate-Source Voltage VGS -12 12 V 1
Continuous Drain Current ID 3 A TA=25℃ 1
Continuous Drain Current ID 2.1 A TA=100℃ 1
Pulse Drain Current IDM 12 A Tested note1 1
Power Dissipation PD 1.25 W TA=25℃ 1
Operating and Storage Junction Temperature Range TJ, TSTG -55 150 ℃ 1
Thermal Resistance, Junction to Ambient RƟJA 100 ℃/W 1

CAD (KiCad official)

  • Symbol: DO3402AA
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3 (KiCad packages3D, STEP)
  • 3D model files: do3402aa-etched.step / do3402aa-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); do3402aa.step / do3402aa.glb are the bare package body.

Provenance

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

  • Datasheet: DOINGTER datasheet (7 pp, sha256 a47b7395bb96a4b1, retrieved 2026-10-18, 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