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AO3423A

Public Made by Adom

by adom

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

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AO3423A

UMW · MOSFETs · SOT-23

AO3423A 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; controls the P-channel MOSFET, with a maximum gate-source voltage of ±12V and operation with gate voltages as low as -2.5V.
2 S passive Source of the P-channel MOSFET.
3 D passive Drain of the P-channel MOSFET, rated for VDS of -20V and continuous drain current of -2A.

Key specifications

Parameter Value
Manufacturer UMW
Package SOT-23
Category Transistors
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 V(BR)DSS -20 V VGS=0V, ID=-250µA 2
Gate-source threshold voltage VGS(th) -0.4 -1 V VDS=VGS, ID=-250µA 2
Gate-source leakage IGSS -10 10 µA VDS=0V, VGS=±12V 2
Zero gate voltage drain current IDSS -1 µA VDS=-20V, VGS=0V 2
Drain-source on-state resistance RDS(ON) 59 120 mΩ VGS=-4.5V, ID=-2A 2
Drain-source on-state resistance RDS(ON) 72 150 mΩ VGS=-2.5V, ID=-1A 2
Diode forward voltage VSD -0.8 -1.2 V IS=-1A, VGS=0V 2
Forward transconductance gFS 7 S VDS=-4.5V, ID=-2A 2
Input capacitance Ciss 325 pF VDS=-4.5V, VGS=0V, f=1MHz 2
Output capacitance Coss 63 pF VDS=-4.5V, VGS=0V, f=1MHz 2
Reverse transfer capacitance Crss 37 pF VDS=-4.5V, VGS=0V, f=1MHz 2
Total gate charge Qg 3.2 nC VDS=-10V, VGS=-4.5V, ID=-2A 2
Gate-source charge Qgs 0.6 nC VDS=-10V, VGS=-4.5V, ID=-2A 2
Gate-drain charge Qgd 0.9 nC VDS=-10V, VGS=-4.5V, ID=-2A 2
Drain-Source Voltage VDS -20 V TA=25°C 1
Gate-Source Voltage VGS -12 12 V TA=25°C 1
Continuous Drain Current ID -2 A TA=25°C 1
Pulsed Drain Current IDM -18 A TA=25°C 1
Power Dissipation PD 1.4 W TA=25°C 1
Operating Junction Temperature TJ -55 150 °C TA=25°C 1
Storage Temperature TSTG -55 150 °C TA=25°C 1
Thermal Resistance from Junction to Ambient RθJA 125 °C/W t≤5s 1

CAD (KiCad official)

  • Symbol: AO3423A
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: ao3423a-etched.step / ao3423a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ao3423a.step / ao3423a.glb are the bare package body.

Provenance

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

  • Datasheet: UMW datasheet (7 pp, sha256 1d2e66a29e329883, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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