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Ray Publish 0.1.0 1bacb88 8d ago

AOD4186

Alpha Omega Semicon · MOSFETs · TO-252

AOD4186 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 is rated ±20 V maximum, with VGS(th) of 1.7 V min to 2.7 V max at ID=250µA.
2 D passive Drain, also the exposed tab on the package bottom; drain-source voltage is rated 40 V maximum and continuous drain current is 35 A at TC=25°C.
3 S passive Source; maximum body-diode continuous current is 60 A.

Key specifications

Parameter Value
Manufacturer Alpha Omega Semicon
Package TO-252
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 40 V 1
Gate-Source Voltage VGS -20 20 V 1
Junction and Storage Temperature Range TJ, TSTG -55 175 °C 1
Continuous Drain Current ID 35 A TC=25°C 1
Maximum Junction-to-Ambient RθJA 16.7 25 °C/W t ≤ 10s 1
Maximum Junction-to-Ambient RθJA 40 50 °C/W Steady-State 1
Maximum Junction-to-Case RθJC 2.5 3 °C/W Steady-State 1
Drain-Source Breakdown Voltage BVDSS 40 V ID=250µA, VGS=0V 2
Gate Threshold Voltage VGS(th) 1.7 2.2 2.7 V VDS=VGS ID=250µA 2
Static Drain-Source On-Resistance RDS(ON) 12.4 15 mΩ VGS=10V, ID=20A 2
Static Drain-Source On-Resistance RDS(ON) 14.5 19 mΩ VGS=4.5V, ID=15A 2
Static Drain-Source On-Resistance RDS(ON) 20 24 mΩ TJ=125°C 2
Diode Forward Voltage VSD 0.75 1 V IS=1A, VGS=0V 2
Input Capacitance Ciss 780 980 1200 pF VGS=0V, VDS=20V, f=1MHz 2
Output Capacitance Coss 90 130 170 pF VGS=0V, VDS=20V, f=1MHz 2
Reverse Transfer Capacitance Crss 48 80 110 pF VGS=0V, VDS=20V, f=1MHz 2
Gate resistance Rg 1.9 3.8 5.7 Ω VGS=0V, VDS=0V, f=1MHz 2
Total Gate Charge Qg(10V) 13.5 17 20 nC VGS=10V, VDS=20V, ID=20A 2
Total Gate Charge Qg(4.5V) 7 9 11 nC 2
Gate Source Charge Qgs 2 2.5 3 nC 2
Gate Drain Charge Qgd 2.7 4.5 6.3 nC 2
Body Diode Reverse Recovery Time trr 9 12 15 ns IF=20A, dI/dt=500A/µs 2
Body Diode Reverse Recovery Charge Qrr 24 31 38 nC IF=20A, dI/dt=500A/µs 2

CAD (KiCad official)

  • Symbol: AOD4186
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252 (KiCad packages3D, STEP)
  • 3D model files: aod4186-etched.step / aod4186-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); aod4186.step / aod4186.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 8d842c6924b40226, retrieved 2026-10-19, 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