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Contents

README

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UT9435HG-AA3-R

UTC Unisonic Tech · MOSFETs · SOT-223

UT9435HG-AA3-R from UTC Unisonic Tech, in a SOT-223. 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 P-channel enhancement-mode MOSFET; gate-source voltage is rated VGS ±20 V.
2 D passive Drain of the P-channel MOSFET; drain-source voltage is rated VDS -30 V and continuous drain current is rated ±5.3 A at TA=125°C.
3 S passive Source of the P-channel MOSFET, with a drain-source breakdown voltage BVDSS of -30 V (VGS = 0 V, ID = -250 µA).

Key specifications

Parameter Value
Manufacturer UTC Unisonic Tech
Package SOT-223
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
Gate-Source Voltage VGS -20 20 V 2
Continuous Drain Current ID -5.3 5.3 A TA=125°C (Note 3) 2
Pulsed Drain Current IDM -20 20 A Note 1, 2 2
Storage Temperature TSTG -55 150 °C 2
Drain-Source Breakdown Voltage BVDSS -30 V VGS =0 V, ID =-250 µA 2
Drain-Source Leakage Current IDSS -1 µA VDS =-24 V, VGS =0 V 2
Gate-Source Leakage Current IGSS -100 100 nA VDS =0 V, VGS = ±20V 2
Gate Threshold Voltage VGS(TH) -1 -3 V VDS =VGS, ID =-250 µA 2
Drain-Source On-State Resistance (VGS=-10V) RDS(ON) 44 50 mΩ VGS =-10V, ID =-5.3A (Note 2) 2
Drain-Source On-State Resistance (VGS=-4.5V) RDS(ON) 74 90 mΩ VGS =-4.5V, ID =-4.2A (Note 2) 2
On State Drain Current ID(ON) -20 A VDS = -5V, VGS =-10V 2
Total Gate Charge QG 22.5 29 nC VDS =-15V, VGS =-10V, ID =-4.6A 2
Turn-ON Delay Time tD(ON) 19 26 ns VDD =-15V, ID=-1A, VGEN =-10V, RG =6Ω 2
Turn-ON Rise Time tR 9 13 ns VDD =-15V, ID=-1A, VGEN =-10V, RG =6Ω 2
Turn-OFF Delay Time tD(OFF) 74 105 ns VDD =-15V, ID=-1A, VGEN =-10V, RG =6Ω 2
Turn-OFF Fall Time tF 36 50 ns VDD =-15V, ID=-1A, VGEN =-10V, RG =6Ω 2
Drain-Source Diode Forward Voltage VSD -0.84 -1.3 V VGS =0V, IS =-5.3A (Note 2) 2
Input Capacitance CISS 1040 pF VDS =-15V, VGS =0V, f=1.0MHz 2
Output Capacitance COSS 420 pF VDS =-15V, VGS =0V, f=1.0MHz 2
Reverse Transfer Capacitance CRSS 150 pF VDS =-15V, VGS =0V, f=1.0MHz 2
Gate-Source Charge QGS 2 nC VDS =-15V, VGS =-10V, ID =-4.6A 2
Gate-Drain Charge QGD 6 nC VDS =-15V, VGS =-10V, ID =-4.6A 2
Drain-Source Voltage VDS -30 V 2
Power Dissipation PD 2.5 W 2
Junction Temperature TJ 150 °C 2
Junction to Ambient θJA 50 °C/W Surface mounted on 1 in2 copper pad of FR4 board 2

CAD (KiCad official)

  • Symbol: UT9435HG-AA3-R
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223 (KiCad packages3D, STEP)
  • 3D model files: ut9435hg-aa3-r-etched.step / ut9435hg-aa3-r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ut9435hg-aa3-r.step / ut9435hg-aa3-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 36e8f53bb4707300, 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