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UT4421G-SO8-R

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

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UT4421G-SO8-R

UTC Unisonic Tech · MOSFETs · SOP-8

UT4421G-SO8-R from UTC Unisonic Tech, 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 terminal of the P-channel MOSFET; the body-diode maximum continuous current is rated IS -4.2 A.
2 S passive Source terminal of the P-channel MOSFET; the body-diode maximum continuous current is rated IS -4.2 A.
3 S passive Source terminal of the P-channel MOSFET; the body-diode maximum continuous current is rated IS -4.2 A.
4 G input Gate terminal of the P-channel MOSFET; gate-source voltage is rated VGSS ±20 V.
5 D passive Drain terminal of the P-channel MOSFET; drain-source voltage is rated VDSS -60 V and continuous drain current is -6.2 A at TA=25°C.
6 D passive Drain terminal of the P-channel MOSFET; drain-source voltage is rated VDSS -60 V and continuous drain current is -6.2 A at TA=25°C.
7 D passive Drain terminal of the P-channel MOSFET; drain-source voltage is rated VDSS -60 V and continuous drain current is -6.2 A at TA=25°C.
8 D passive Drain terminal of the P-channel MOSFET; drain-source voltage is rated VDSS -60 V and continuous drain current is -6.2 A at TA=25°C.

Key specifications

Parameter Value
Manufacturer UTC Unisonic Tech
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 Voltage VDSS -60 V 2
Gate-Source Voltage VGSS -20 20 V 2
Continuous Drain Current ID -6.2 A TA=25°C 2
Continuous Drain Current ID -5 A TA=70°C 2
Pulsed Drain Current IDM -40 A Pulsed (Note 2) 2
Power Dissipation PD 2 W Note 1 2
Junction Temperature TJ -55 150 °C 2
Storage Temperature Range TSTG -55 150 °C 2
Junction to Ambient Thermal Resistance θJA 75 °C/W 2
Junction to Case Thermal Resistance θJC 30 °C/W 2
Drain-Source Breakdown Voltage BVDSS -60 V ID=-250µA, VGS=0V 3
Zero Gate Voltage Drain Current IDSS -1 µA VDS=-48V, VGS=0V 3
Zero Gate Voltage Drain Current IDSS -5 µA VDS=-48V, VGS=0V, TJ=55°C 3
Gate-Source Leakage Current Forward IGSS 100 nA Forward VGS=+20V, VDS=0V 3
Gate-Source Leakage Current Reverse IGSS -100 nA Reverse VGS=-20V, VDS=0V 3
Gate Threshold Voltage VGS(TH) -1 -2 -3 V VDS=VGS, ID=-250µA 3
On State Drain Current ID(ON) -40 A VGS=-10V, VDS=-5V 3
Static Drain-Source On-State Resistance RDS(ON) 43 48 mΩ VGS=-10V, ID=-6.2A 3
Static Drain-Source On-State Resistance RDS(ON) 58 63 mΩ VGS=-4.5V, ID=-5A 3
Forward Transconductance gFS 18 S VDS=-5V, ID=-6.2A 3
Input Capacitance CISS 2417 2900 pF 3
Gate Resistance RG 1.9 2.3 Ω VGS=0V, VDS=0V, f=1MHz 3
Total Gate Charge QG 46.5 55 nC 3
Maximum Body-Diode Continuous Current IS -4.2 A 3
Diode Forward Voltage VSD -0.74 -1 V IS=-1A,VGS=0V 3
Body Diode Reverse Recovery Time trr 34 42 ns 3
Output Capacitance COSS 179 pF 3
Reverse Transfer Capacitance CRSS 120 pF 3
Total Gate Charge QG 22.7 nC VGS=-4.5V, VDS=-30V, ID=-6.2A 3
Gate to Source Charge QGS 9.1 nC 3
Gate to Drain Charge QGD 9.2 nC 3
Turn-ON Delay Time tD(ON) 9.8 ns 3
Rise Time tR 6.1 ns 3
Turn-OFF Delay Time tD(OFF) 44 ns 3
Fall-Time tF 12.7 ns 3
Body Diode Reverse Recovery Charge Qrr 47 nC IF=-6.2A, dI/dt=100A/µS 3

CAD (KiCad official)

  • Symbol: UT4421G-SO8-R
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: ut4421g-so8-r-etched.step / ut4421g-so8-r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ut4421g-so8-r.step / ut4421g-so8-r.glb are the bare package body.

Provenance

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

  • Datasheet: UTC Unisonic Tech datasheet (5 pp, sha256 472ec5d8bc45ae4a, retrieved 2026-10-18, 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