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KY9435

Public Made by Adom

by adom

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

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KY9435

KY · MOSFETs · SOP-8

KY9435 from KY, 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 -30 V P-channel MOSFET; pins 1, 2 and 3 are all tied to source.
2 S passive Source terminal of the -30 V P-channel MOSFET; pins 1, 2 and 3 are all tied to source.
3 S passive Source terminal of the -30 V P-channel MOSFET; pins 1, 2 and 3 are all tied to source.
4 G input Gate terminal; the datasheet limits gate-source voltage VGSS to ±20 V.
5 D passive Drain terminal; pins 5 through 8 are all tied to drain, with VDSS rated -30 V and continuous ID rated -5.1 A at Ta=25℃.
6 D passive Drain terminal; pins 5 through 8 are all tied to drain, with VDSS rated -30 V and continuous ID rated -5.1 A at Ta=25℃.
7 D passive Drain terminal; pins 5 through 8 are all tied to drain, with VDSS rated -30 V and continuous ID rated -5.1 A at Ta=25℃.
8 D passive Drain terminal; pins 5 through 8 are all tied to drain, with VDSS rated -30 V and continuous ID rated -5.1 A at Ta=25℃.

Key specifications

Parameter Value
Manufacturer KY
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 -30 V 1
Gate-Source Voltage VGSS -20 20 V 1
Continuous Drain Current ID -5.1 A Ta= 25℃ 1
Continuous Drain Current ID -3.2 A Ta= 100℃ 1
Pulsed Drain Current IDM -20 A 1
Power Dissipation PD 2.5 W Ta= 25℃ 1
Thermal Resistance, Junction to Ambient RθJA 50 ℃/W 1
Operating and Storage Temperature Range TJ, TSTG -55 150 ℃ 1
Drain-Source Breakdown Voltage V(BR)DSS -30 V VGS=0V,ID= -250μA 2
Zero Gate Voltage Drain Current IDSS -1 μA VDS = -30V, VGS = 0V, 2
Gate to Body Leakage Current IGSS -100 100 nA VDS =0V, VGS = ±20V 2
Gate Threshold Voltage VGS(th) -1 -1.35 -2 V VDS= VGS, ID= -250μA 2
Static Drain-Source on-Resistance RDS(on) 43 55 mΩ VGS =-10V, ID =-5.1A 2
Static Drain-Source on-Resistance RDS(on) 55 90 mΩ VGS =-4.5V, ID =-4.2A 2
Forward Transconductance gFS 4 S VDS =-5V, ID = -5.1A 2
Maximum Continuous Drain to Source Diode Forward Current IS -5.1 A 2
Maximum Pulsed Drain to Source Diode Forward Current ISM -20 A 2
Drain to Source Diode Forward Voltage VSD -1.2 V VGS = 0V, IS = -5.1A 2
Input Capacitance Ciss 980 pF VDS = -15V, VGS = 0V, f = 1.0MHz 2
Output Capacitance Coss 390 pF 2
Reverse Transfer Capacitance Crss 135 pF 2
Total Gate Charge Qg 11 nC VDS= -15V, ID = -5.1A, VGS = -10V 2
Gate-Source Charge Qgs 2 nC 2
Gate-Drain (Miller) Charge Qgd 2.8 nC 2
Turn-on Delay Time td(on) 14 ns VDD = -15V, ID = -1A, VGS =-10V, RGEN=6Ω 2
Turn-on Rise Time tr 12 ns 2
Turn-off Delay Time td(off) 56 ns 2
Turn-off Fall Time tf 20 ns 2

CAD (KiCad official)

  • Symbol: KY9435
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: ky9435-etched.step / ky9435-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ky9435.step / ky9435.glb are the bare package body.

Provenance

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

  • Datasheet: KY datasheet (5 pp, sha256 ff6f88b79b23fdaa, 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