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KAO3402

Public Made by Adom

by adom

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

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KAO3402

KUU · MOSFETs · SOT-23

KAO3402 from KUU, 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 GATE input Gate terminal of the MOSFET, with gate-source voltage VGS rated at ±12 V.
2 SOURCE passive Source terminal of the MOSFET; the datasheet rates continuous source-drain diode current IS at 0.8 A.
3 DRAIN passive Drain terminal of the MOSFET, with drain-source voltage VDS rated at 30 V and continuous drain current ID at 4 A.

Key specifications

Parameter Value
Manufacturer KUU
Package SOT-23
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 30 V 1
Gate-source voltage VGS -12 12 V 1
Continuous drain current ID 4 A 1
Pulsed diode current IDM 15 A 1
Continuous source-drain current (diode conduction) IS 0.8 A 1
Power dissipation PD 1.4 W 1
Thermal resistance from junction to ambient RθJA 125 ℃/W t≤5s 1
Operating junction temperature TJ 150 ℃ 1
Storage temperature TSTG -55 150 ℃ 1
Drain-source breakdown voltage V(BR)DSS 30 V VGS = 0V, ID = 250µA 2
Gate-source threshold voltage VGS(th) 0.6 1.4 V VDS =VGS, ID = 250µA 2
Gate-source leakage IGSS 100 nA VDS =0V, VGS = ±12V 2
Zero gate voltage drain current IDSS 1 µA VDS = 30V, VGS =0V 2
Drain-source on-state resistance RDS(on) 37 55 mΩ VGS = 10V, ID = 1A 2
Drain-source on-state resistance RDS(on) 42 70 mΩ VGS = 4.5V, ID = 1A 2
Drain-source on-state resistance RDS(on) 53 110 mΩ VGS = 2.5V, ID = 1A 2
Diode forward voltage VSD 0.8 1.3 V IS=1A,VGS=0V 2
Total gate charge Qg 11 14 nC VDS = 15V,VGS = 4.5V, ID = 4A 2
Forward transconductance gfs 8 S VDS = 4.5V, ID = 4A 2
Input capacitance Ciss 390 pF VDS = 15V,VGS =0V, f=1MHz 2
Output capacitance Coss 54.5 pF 2
Reverse transfer capacitance Crss 41 pF 2
Gate-source charge Qgs 1.3 nC 2
Gate-drain charge Qgd 2.8 nC 2
Gate resistance Rg 3 Ω f=1MHz 2
Turn-on delay time td(on) 3.3 ns VDS= 15V RL=4Ω, ID ≈ 1A, VGEN= 4.5V,Rg=6Ω 2
Rise time tr 1 ns 2
Turn-off delay time td(off) 21.7 ns 2
Fall time tf 2.1 ns 2
Continuous source-drain diode current IS 1.2 A Tc=25℃ 2
Body diode reverse recovery time trr 12 ns IF=4A, dl/dt=100A/us 2
Body diode reverse recovery charge Qrr 6.3 nC IF=4A, dl/dt=100A/us 2

CAD (KiCad official)

  • Symbol: KAO3402
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: kao3402-etched.step / kao3402-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); kao3402.step / kao3402.glb are the bare package body.

Provenance

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

  • Datasheet: KUU datasheet (4 pp, sha256 a6810b7a4f11fefb, retrieved 2026-10-19, 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