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AOD4185L

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Alpha & Omega Semicon MOSFETs, TO-252-2(DPAK). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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AOD4185L

Alpha & Omega Semicon · MOSFETs · TO-252-2(DPAK)

AOD4185L from Alpha & Omega Semicon, in a TO-252-2(DPAK). 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 ±20V and VGS(th) is -1.7V typ (-1V to -3V range) at ID=-250µA.
2 D passive Drain, the center lead and exposed tab; VDS maximum is -40V and continuous ID is -40A at TC=25°C.
3 S passive Source; body-diode continuous current is -20A maximum.

Key specifications

Parameter Value
Manufacturer Alpha & Omega Semicon
Package TO-252-2(DPAK)
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 -40 V ID=-250µA, VGS=0V 2
Zero Gate Voltage Drain Current IDSS -1 µA VDS=-40V, VGS=0V 2
Zero Gate Voltage Drain Current IDSS -5 µA VDS=-40V, VGS=0V, TJ=55°C 2
Gate-Body leakage current IGSS -100 100 nA VDS=0V, VGS=±20V 2
Gate Threshold Voltage VGS(th) -1.7 -1.9 -3 V VDS=VGS, ID=-250µA 2
On state drain current ID(ON) -115 A VGS=-10V, VDS=-5V 2
Static Drain-Source On-Resistance RDS(ON) 12.5 15 mΩ VGS=-10V, ID=-20A 2
Static Drain-Source On-Resistance RDS(ON) 19 23 mΩ VGS=-10V, ID=-20A, TJ=125°C 2
Static Drain-Source On-Resistance RDS(ON) 16 20 mΩ VGS=-4.5V, ID=-15A 2
Maximum Body-Diode Continuous Current IS -20 A 2
Diode Forward Voltage VSD -0.72 -1 V IS=-1A, VGS=0V 2
Gate resistance Rg 2.5 4 6 Ω VGS=0V, VDS=0V, f=1MHz 2
Total Gate Charge Qg (-10V) 42 55 nC VGS=-10V, VDS=-20V, ID=-20A 2
Body Diode Reverse Recovery Time trr 38 49 ns IF=-20A, dI/dt=100A/µs 2
Drain-Source Voltage VDS -40 V TC=25°C 1
Gate-Source Voltage VGS -20 20 V 1
Continuous Drain Current ID -40 A TC=25°C 1
Continuous Drain Current ID -31 A TC=100°C 1
Pulsed Drain Current IDM -115 A 1
Power Dissipation PD 62.5 W TC=25°C 1
Power Dissipation PD 31 W TC=100°C 1
Power Dissipation PDSM 2.5 W TA=25°C 1
Power Dissipation PDSM 1.6 W TA=70°C 1
Junction and Storage Temperature Range TJ, TSTG -55 175 °C 1
Maximum Junction-to-Ambient RθJA 15 20 °C/W t ≤ 10s 1
Maximum Junction-to-Ambient RθJA 41 50 °C/W Steady-State 1
Maximum Junction-to-Case RθJC 2 2.4 °C/W Steady-State 1
Forward Transconductance gFS 50 S VDS=-5V, ID=-20A 2
Input Capacitance Ciss 2550 pF VGS=0V, VDS=-20V, f=1MHz 2
Output Capacitance Coss 280 pF VGS=0V, VDS=-20V, f=1MHz 2
Reverse Transfer Capacitance Crss 190 pF VGS=0V, VDS=-20V, f=1MHz 2
Total Gate Charge Qg (-4.5V) 18.6 nC 2
Gate Source Charge Qgs 7 nC VGS=-10V, VDS=-20V, ID=-20A 2
Gate Drain Charge Qgd 8.6 nC VGS=-10V, VDS=-20V, ID=-20A 2
Turn-On Delay Time tD(on) 9.4 ns VGS=-10V, VDS=-20V, RL=1Ω, RGEN=3Ω 2
Turn-On Rise Time tr 20 ns VGS=-10V, VDS=-20V, RL=1Ω, RGEN=3Ω 2
Turn-Off Delay Time tD(off) 55 ns VGS=-10V, VDS=-20V, RL=1Ω, RGEN=3Ω 2
Turn-Off Fall Time tf 30 ns VGS=-10V, VDS=-20V, RL=1Ω, RGEN=3Ω 2
Body Diode Reverse Recovery Charge Qrr 47 nC IF=-20A, dI/dt=100A/µs 2

CAD (KiCad official)

  • Symbol: AOD4185L
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252-2(DPAK) (KiCad packages3D, STEP)
  • 3D model files: aod4185l-etched.step / aod4185l-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); aod4185l.step / aod4185l.glb are the bare package body.

Provenance

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

  • Datasheet: Alpha & Omega Semicon datasheet (6 pp, sha256 6d3402787c930b66, retrieved 2026-10-22, 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