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AO3403

Public Made by Adom

by adom

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

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 22d ago
viewers ao3403: viewers · Ray 22d ago
ao3403-etched.glb ao3403: factory component page (tier=lcsc) · Ray 22d ago
ao3403-etched.step ao3403: factory component page (tier=lcsc) · Ray 22d ago
ao3403-hero.glb ao3403: hero GLB from the etched model (keeps the MPN mark) · Ray 22d ago
ao3403-hero.overlay.json Publish 0.1.0 · Ray 22d ago
ao3403.glb Publish 0.1.0 · Ray 22d ago
ao3403.kicad_mod Publish 0.1.0 · Ray 22d ago
ao3403.kicad_sym Publish 0.1.0 · Ray 22d ago
ao3403.lbr Publish 0.1.0 · Ray 22d ago
ao3403.step Publish 0.1.0 · Ray 22d ago
package.json Publish 0.1.0 · Ray 22d ago
page.json ao3403: specified limits as data (metadata.characteristics, 25 rows from the datasheet) · Ray 16d ago
README.md ao3403: specified limits as data (metadata.characteristics, 25 rows from the datasheet) · Ray 16d ago

AO3403

Alpha Omega Semicon · MOSFETs · SOT-23

AO3403 from Alpha Omega Semicon, 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 ±12V, with a threshold of -0.6V min, -1V typ and -1.4V max at ID=-250µA.
2 S passive Source of the P-channel MOSFET; drain-source voltage is rated -30V and continuous drain current -2.6A at TA=25°C.
3 D passive Drain of the P-channel MOSFET; drain-source voltage is rated -30V, continuous current -2.6A and pulsed current -13A.

Key specifications

Parameter Value
Manufacturer Alpha Omega Semicon
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 -2.6 A TA=25°C 1
Continuous Drain Current ID -2.2 A TA=70°C 1
Pulsed Drain Current IDM -13 A 1
Power Dissipation PD 1.4 W TA=25°C 1
Power Dissipation PD 0.9 W TA=70°C 1
Junction and Storage Temperature Range TJ, TSTG -55 150 °C 1
Maximum Junction-to-Ambient thermal resistance (steady-state) RθJA 125 °C/W Figure 11 normalization note: RθJA=125°C/W 4
Drain-Source Breakdown Voltage BVDSS -30 V ID=-250µA, VGS=0V 2
Zero Gate Voltage Drain Current IDSS -1 µA VDS=-30V, VGS=0V 2
Zero Gate Voltage Drain Current IDSS -5 µA TJ=55°C, VDS=-30V, VGS=0V 2
Gate-Body leakage current IGSS -100 100 nA VDS=0V, VGS=±12V 2
Gate Threshold Voltage VGS(th) -0.6 -1 -1.4 V VDS=VGS, ID=-250µA 2
Static Drain-Source On-Resistance RDS(ON) 88 115 mΩ VGS=-10V, ID=-2.6A 2
Static Drain-Source On-Resistance RDS(ON) 143 200 mΩ VGS=-10V, ID=-2.6A, TJ=125°C 2
Static Drain-Source On-Resistance RDS(ON) 103 150 mΩ VGS=-4.5V, ID=-2A 2
Static Drain-Source On-Resistance RDS(ON) 139 200 mΩ VGS=-2.5V, ID=-1A 2
Diode Forward Voltage VSD -0.78 -1 V IS=-1A, VGS=0V 2
Maximum Body-Diode Continuous Current IS -1.5 A 2
Input Capacitance Ciss 260 315 pF VGS=0V, VDS=-15V, f=1MHz 2
Gate resistance Rg 4 8 12 Ω VGS=0V, VDS=0V, f=1MHz 2
Total Gate Charge (10V) Qg 5.9 7.2 nC VGS=-10V, VDS=-15V, ID=-2.6A 2
Total Gate Charge (4.5V) Qg 2.8 3.5 nC 2
Body Diode Reverse Recovery Time trr 11.5 15 ns IF=-2.6A, dI/dt=100A/µs 2

CAD (KiCad official)

  • Symbol: AO3403
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: ao3403-etched.step / ao3403-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ao3403.step / ao3403.glb are the bare package body.

Provenance

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

  • Datasheet: Alpha Omega Semicon datasheet (5 pp, sha256 e56d956986d4a365, 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