component

KAO4421

Public Made by Adom

by adom

KUU MOSFETs, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componenttransistors-thyristorskao4421factory-2.0.0extractor-text

Verified KAO4421

by Ray · last 31 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

31 Oct 2026RayPublished by the parts factory: tier lcsc, 8 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: KAO4421 · SOP-8 · 8 pins
  • ✓copper: 8 copper pads, none touching another net
  • ✓datasheet: all 8 pin names found in the 4-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: SOIC-8_3.9x4.9mm_P1.27mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-0yj6uxpp/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 8 pins = 8 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 8 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ kao4421.kicad_sym✓ kao4421.kicad_mod✓ kao4421.step
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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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KAO4421

KUU · MOSFETs · SOP-8

KAO4421 from KUU, in a SOP-8. 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 S passive Source of the P-channel MOSFET, with diode continuous forward current rated -4 A at Tc=25°C.
2 S passive Source of the P-channel MOSFET, tied to the same source as pins 1 and 3.
3 S passive Source of the P-channel MOSFET, tied to the same source as pins 1 and 2.
4 G input Gate of the P-channel MOSFET, with a maximum gate-source voltage of ±20 V and a threshold of -1 to -3 V at ID=-250µA.
5 D passive Drain of the P-channel MOSFET, rated VDS -60 V and continuous ID -5 A at Tc=25°C.
6 D passive Drain of the P-channel MOSFET, tied to the same drain as pins 5, 7 and 8.
7 D passive Drain of the P-channel MOSFET, tied to the same drain as pins 5, 6 and 8.
8 D passive Drain of the P-channel MOSFET, tied to the same drain as pins 5, 6 and 7, with pulse drain current of -21 A at Tc=25°C.

Key specifications

Parameter Value
Manufacturer KUU
Package SOP-8
Category Transistors/Thyristors
Pins 8

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 BV(BR)DSS -60 V VGS=0V, ID=-250μA 2
Zero Gate Voltage Drain Current IDSS -1 uA VDS=-60V, VGS=0V 2
Gate-Body Leakage Current IGSS -100 100 nA VGS=±20V, VDS=0V 2
Gate Threshold Voltage VGS(th) -1 -1.8 -3 V VDS=VGS, ID=-250μA 2
Drain-Source On-State Resistance RDS(on) 70 90 mΩ VGS=-10V, ID=-6.2A 2
Drain-Source On-State Resistance RDS(on) 105 150 mΩ VGS=-4.5V, ID=-5A 2
Forward on voltage VSD -0.8 -1.2 V Tj=25℃, Is=-1A 2
Input Capacitance CISS 987 pF VDS=-30V, VGS=0V, f=1MHz 2
Output Capacitance COSS 114 pF VDS=-30V, VGS=0V, f=1MHz 2
Reverse Transfer Capacitance CRSS 46 pF VDS=-30V, VGS=0V, f=1MHz 2
Total Gate Charge Qg 15.8 nC VDS=-30V, ID=-5A, VGS=-10V 2
Gate Source Charge Qgs 3 nC VDS=-30V, ID=-5A, VGS=-10V 2
Gate Drain Charge Qgd 3.5 nC VDS=-30V, ID=-5A, VGS=-10V 2
Turn-on Delay Time td(on) 9 nS VDS=-30V, ID=-5A, VGS=-10V, RG=3Ω 2
Turn-on Rise Time tr 10 nS VDS=-30V, ID=-5A, VGS=-10V, RG=3Ω 2
Turn-Off Delay Time td(off) 25 nS VDS=-30V, ID=-5A, VGS=-10V, RG=3Ω 2
Turn-Off Fall Time tf 11 nS VDS=-30V, ID=-5A, VGS=-10V, RG=3Ω 2
Drain-Source Voltage VDS -60 V TA=25℃ 1
Gate-Source Voltage VGS -20 20 V TA=25℃ 1
Continuous Drain Current ID -5 A Tc=25°C, VGS=10V 1
Pulse Drain Current IDM -21 A Tc=25°C 1
Diode Continuous Forward Current IS -4 A Tc=25°C 1
Maximum Power Dissipation PD 3 W Tc=25°C 1
Maximum Junction Temperature TJ 150 °C 1
Storage Temperature Range TSTG -50 155 °C 1
Thermal Resistance Junction-Ambient RθJA 40 °C/W 1 in2 pad of 2-oz copper 1

CAD (KiCad official)

  • Symbol: KAO4421
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: kao4421-etched.step / kao4421-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); kao4421.step / kao4421.glb are the bare package body.

Provenance

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

  • Datasheet: KUU datasheet (4 pp, sha256 429718a60de9d175, retrieved 2026-10-31, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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