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AO3409A

Public Made by Adom

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

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AO3409A

UMW · MOSFETs · SOT-23

AO3409A from UMW, 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 terminal of the P-channel MOSFET; gate-source voltage is rated ±20 V per the absolute maximum ratings.
2 S passive SOURCE terminal of the P-channel MOSFET, the reference for the gate-source voltage (VGS rated ±20 V).
3 D passive DRAIN terminal of the P-channel MOSFET; drain-source voltage is rated -30 V with continuous drain current of -2.6 A at TA=25°C (VGS=-10V).

Key specifications

Parameter Value
Manufacturer UMW
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 TA=25°C 1
Gate-Source Voltage VGS -20 20 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 -20 A 1
Power Dissipation PD 1.4 W TA=25°C 1
Power Dissipation PD 1 W TA=70°C 1
Junction and Storage Temperature Range TJ, TSTG -55 150 °C 1
Thermal Resistance (printed value 80, junction-to-ambient or junction-to-case not assigned) 80 °C/W 1
Thermal Resistance (printed value 125, junction-to-ambient or junction-to-case not assigned) 125 °C/W 1
Drain-Source Breakdown Voltage VDSS -30 V ID=250µA, VGS=0V 2
Zero Gate Voltage Drain Current IDSS -1 µA VDS=-24V, VGS=0V 2
Zero Gate Voltage Drain Current IDSS -5 µA VDS=-24V, VGS=0V, TJ=55°C 2
Gate-Body Leakage Current IGSS -100 100 nA VDS=0V, VGS=±20V 2
Gate Threshold Voltage VGS(th) -1 -1.9 -3 V VDS=VGS, ID=-250µA 2
Static Drain-Source On-Resistance RDS(ON) 77 90 mΩ VGS=-10V, ID=-2.6A 2
Static Drain-Source On-Resistance RDS(ON) 110 150 mΩ VGS=-4.5V, ID=-2A 2
Maximum Body-Diode Continuous Current IS -2 A 2
Diode Forward Voltage VSD -0.82 -1 V IS=-1A, VGS=0V 2

CAD (KiCad official)

  • Symbol: AO3409A
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: ao3409a-etched.step / ao3409a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ao3409a.step / ao3409a.glb are the bare package body.

Provenance

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

  • Datasheet: UMW datasheet (7 pp, sha256 a19a5e1a346850a8, retrieved 2026-10-15, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-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