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AO3485C

Public Made by Adom

by adom

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

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docs Publish 0.1.0 · Ray 25d ago
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ao3485c-etched.step ao3485c: factory component page (tier=lcsc) · Ray 25d ago
ao3485c-hero.glb ao3485c: hero GLB from the etched model (keeps the MPN mark) · Ray 25d ago
ao3485c-hero.overlay.json Publish 0.1.0 · Ray 25d ago
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ao3485c.step Publish 0.1.0 · Ray 25d ago
package.json Publish 0.1.0 · Ray 25d ago
page.json ao3485c: specified limits as data (metadata.characteristics, 33 rows from the datasheet) · Ray 19d ago
README.md ao3485c: specified limits as data (metadata.characteristics, 33 rows from the datasheet) · Ray 19d ago

AO3485C

Alpha Omega Semicon · MOSFETs · SOT-23-3

AO3485C from Alpha Omega Semicon, in a SOT-23-3. 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 of the 20V P-channel MOSFET; gate-source voltage is rated ±8V in the absolute maximum ratings.
2 S passive Source of the P-channel MOSFET; maximum body-diode continuous current is -2A (IS).
3 D passive Drain of the P-channel MOSFET; drain-source voltage is -20V with continuous drain current of -4.5A at VGS=-4.5V, TA=25°C.

Key specifications

Parameter Value
Manufacturer Alpha Omega Semicon
Package SOT-23-3
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 -20 V 1
Gate-Source Voltage VGS -8 8 V 1
Continuous Drain Current ID -4.5 A TA=25°C 1
Continuous Drain Current ID -3.5 A TA=70°C 1
Pulsed Drain Current IDM -18 A 1
Power Dissipation PD 1.3 W TA=25°C 1
Power Dissipation PD 0.8 W TA=70°C 1
Junction and Storage Temperature Range TJ, TSTG -55 150 °C 1
Drain-Source Breakdown Voltage BVDSS -20 V ID=-250mA, VGS=0V 2
Zero Gate Voltage Drain Current IDSS -1 μA VDS=-20V, VGS=0V 2
Zero Gate Voltage Drain Current IDSS -5 μA TJ=55°C 2
Gate-Body Leakage Current IGSS -10 10 μA VDS=0V, VGS=±8V 2
Gate Threshold Voltage VGS(th) -0.15 -0.55 -0.95 V VDS=VGS, ID=-250mA 2
Static Drain-Source On-Resistance RDS(ON) 33 40 mΩ VGS=-4.5V, ID=-4.5A 2
Static Drain-Source On-Resistance RDS(ON) 43 52 mΩ TJ=125°C 2
Static Drain-Source On-Resistance RDS(ON) 42 55 mΩ VGS=-2.5V, ID=-4A 2
Static Drain-Source On-Resistance RDS(ON) 54 72 mΩ VGS=-1.8V, ID=-3.5A 2
Diode Forward Voltage VSD -0.7 -1 V IS=-1A, VGS=0V 2
Maximum Body-Diode Continuous Current IS -2 A 2
Gate Resistance Rg 15 30 Ω f=1MHz 2
Total Gate Charge Qg 8.5 17 nC VGS=-4.5V, VDS=-10V, ID=-4.5A 2
Forward Transconductance gFS 20 S VDS=-5V, ID=-4.5A 2
Input Capacitance Ciss 930 pF VGS=0V, VDS=-10V, f=1MHz 2
Output Capacitance Coss 90 pF VGS=0V, VDS=-10V, f=1MHz 2
Reverse Transfer Capacitance Crss 80 pF VGS=0V, VDS=-10V, f=1MHz 2
Gate Source Charge Qgs 1 nC VGS=-4.5V, VDS=-10V, ID=-4.5A 2
Gate Drain Charge Qgd 2.5 nC VGS=-4.5V, VDS=-10V, ID=-4.5A 2
Turn-On Delay Time tD(on) 12 ns VGS=-4.5V, VDS=-10V, RL=2.22W, RGEN=3W 2
Turn-On Rise Time tr 11 ns VGS=-4.5V, VDS=-10V, RL=2.22W, RGEN=3W 2
Turn-Off Delay Time tD(off) 82 ns VGS=-4.5V, VDS=-10V, RL=2.22W, RGEN=3W 2
Turn-Off Fall Time tf 35 ns VGS=-4.5V, VDS=-10V, RL=2.22W, RGEN=3W 2
Body Diode Reverse Recovery Time trr 25 ns IF=-4.5A, di/dt=500A/ms 2
Body Diode Reverse Recovery Charge Qrr 37 nC IF=-4.5A, di/dt=500A/ms 2

CAD (KiCad official)

  • Symbol: AO3485C
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3 (KiCad packages3D, STEP)
  • 3D model files: ao3485c-etched.step / ao3485c-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ao3485c.step / ao3485c.glb are the bare package body.

Provenance

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

  • Datasheet: Alpha Omega Semicon datasheet (5 pp, sha256 2c22abf02d2e993b, retrieved 2026-10-09, 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