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AOD4126

Alpha & Omega Semicon · MOSFET · TO-252

AOD4126 from Alpha & Omega Semicon, in a TO-252. 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 ±25V, with VGS(th) of 2V min to 4V max at ID=250µA.
2 D passive Drain (also the exposed tab); VDS rating 100V, continuous ID 43A at TC=25°C.
3 S passive Source; body diode continuous current up to 40A.

Key specifications

Parameter Value
Manufacturer Alpha & Omega Semicon
Package TO-252
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 BVDSS 100 V ID=250µA, VGS=0V 2
Zero Gate Voltage Drain Current IDSS 10 µA VDS=100V, VGS=0V 2
Zero Gate Voltage Drain Current IDSS 50 µA TJ=55°C, VDS=100V, VGS=0V 2
Gate-Body leakage current IGSS 100 nA VDS=0V, VGS=±25V 2
Gate Threshold Voltage VGS(th) 2 3.3 4 V VDS=VGS, ID=250µA 2
On state drain current ID(ON) 100 A VGS=10V, VDS=5V 2
Static Drain-Source On-Resistance RDS(ON) 19 24 mΩ VGS=10V, ID=20A, TJ=25°C 2
Static Drain-Source On-Resistance RDS(ON) 23.5 30 mΩ VGS=7V, ID=15A 2
Static Drain-Source On-Resistance RDS(ON) 36 43 mΩ TJ=125°C, VGS=10V, ID=20A 2
Input Capacitance Ciss 1400 1770 2200 pF VGS=0V, VDS=50V, f=1MHz 2
Output Capacitance Coss 115 165 214 pF VGS=0V, VDS=50V, f=1MHz 2
Reverse Transfer Capacitance Crss 33 55 80 pF VGS=0V, VDS=50V, f=1MHz 2
Gate resistance Rg 0.3 0.65 1 Ω VGS=0V, VDS=0V, f=1MHz 2
Total Gate Charge Qg 14 28 42 nC VGS=10V, VDS=50V, ID=20A 2
Gate Source Charge Qgs 4 9 14 nC VGS=10V, VDS=50V, ID=20A 2
Gate Drain Charge Qgd 6 10 14 nC VGS=10V, VDS=50V, ID=20A 2
Diode Forward Voltage VSD 0.66 1 V IS=1A, VGS=0V 2
Maximum Body-Diode Continuous Current IS 40 A 2
Body Diode Reverse Recovery Time trr 12 20 26 ns IF=20A, dI/dt=500A/µs 2
Body Diode Reverse Recovery Charge Qrr 60 82 110 nC IF=20A, dI/dt=500A/µs 2
Drain-Source Voltage VDS 100 V 1
Gate-Source Voltage VGS -25 25 V 1
Continuous Drain Current ID 43 A TC=25°C 1
Continuous Drain Current ID 30 A TC=100°C 1
Pulsed Drain Current IDM 100 A 1
Power Dissipation PD 100 W TC=25°C 1
Power Dissipation PD 50 W TC=100°C 1
Power Dissipation PDSM 1.9 W TA=25°C 1
Junction and Storage Temperature Range TJ, TSTG -55 175 °C 1
Maximum Junction-to-Case (steady-state) RθJC 1 1.5 °C/W 1
Maximum Junction-to-Ambient (steady-state) RθJA 42 °C/W Steady-State, device on 1 in² FR-4 board, 2oz Cu, still air, TA=25°C 1

CAD (KiCad official)

  • Symbol: AOD4126
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252 (KiCad packages3D, STEP)
  • 3D model files: aod4126-etched.step / aod4126-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); aod4126.step / aod4126.glb are the bare package body.

Provenance

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

  • Datasheet: Alpha & Omega Semicon datasheet (7 pp, sha256 e2ddb4ee5658905e, retrieved 2026-11-05, 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