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Contents

README

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KIA4603AE

KIA Semicon Tech · MOSFETs · SOP-8

KIA4603AE from KIA Semicon 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 of the N-channel MOSFET, tied with pins 2 and 3; the part is rated for 30V VDSS and 7.0A continuous drain current at TA=25°C.
2 S passive Source of the N-channel MOSFET, tied with pins 1 and 3; the part is rated for 30V VDSS and 7.0A continuous drain current at TA=25°C.
3 S passive Source of the N-channel MOSFET, tied with pins 1 and 2; the part is rated for 30V VDSS and 7.0A continuous drain current at TA=25°C.
4 G input Gate of the N-channel MOSFET with a gate-source voltage rating of ±20V and a threshold VGS(th) of 1.2V min to 2.5V max.
5 D passive Drain of the N-channel MOSFET, tied with pins 6, 7 and 8; VDSS is 30V and pulsed drain current IDM is 35A.
6 D passive Drain of the N-channel MOSFET, tied with pins 5, 7 and 8; VDSS is 30V and pulsed drain current IDM is 35A.
7 D passive Drain of the N-channel MOSFET, tied with pins 5, 6 and 8; VDSS is 30V and pulsed drain current IDM is 35A.
8 D passive Drain of the N-channel MOSFET, tied with pins 5, 6 and 7; VDSS is 30V and pulsed drain current IDM is 35A.

Key specifications

Parameter Value
Manufacturer KIA Semicon Tech
Package SOP-8
Category Transistors
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 BVDSS 30 V VGS=0V,ID=-250μA 2
Drain-Source Leakage Current (TJ=25°C) IDSS 1 μA VDS=24V,VGS=0V,TJ=25°C 2
Drain-Source Leakage Current (TJ=55°C) IDSS 5 μA VDS=24V,VGS=0V,TJ=55°C 2
Gate-source leakage current IGSS 100 nA VGS=+20V,VDS=0V 2
Gate threshold voltage VGS(th) 1.2 1.5 2.5 V VDS=VGS,ID=250μA 2
Static drain-source on-resistance RDS(on) 14.5 18 mΩ VGS=10V,ID=7A 2
Static drain-source on-resistance RDS(on) 20 26 mΩ VGS=4.5V,ID=4A 2
Diode forward voltage VSD 1.2 V VGS=0V,IS=1A,TJ=25°C 2
Gate resistance Rg 1.04 2.1 Ω VDS=0V, VGS=0V,f=1MHz 2
Total gate charge(4.5V) Qg 6 8.4 nC VDS=15V,VGS=4.5V,ID=7A 2
Gate-source charge Qgs 2.2 3.1 nC VDS=15V,VGS=4.5V,ID=7A 2
Gate-drain charge Qgd 2 2.8 nC VDS=15V,VGS=4.5V,ID=7A 2
Turn-on delay time td(on) 1.2 2.4 ns VDD=15V,RG=3.3Ω,VGS=10V,ID=7A 2
Rise time tr 40 72 ns VDD=15V,RG=3.3Ω,VGS=10V,ID=7A 2
Turn-off delay time td(off) 18 36 ns VDD=15V,RG=3.3Ω,VGS=10V,ID=7A 2
Fall time tf 7.2 14.4 ns VDD=15V,RG=3.3Ω,VGS=10V,ID=7A 2
Input capacitance Ciss 583 816.2 pF VGS=0V,VDS=15V,F=1.0MHZ 2
Output capacitance Coss 77 107.8 pF VGS=0V,VDS=15V,F=1.0MHZ 2
Reverse transfer capacitance Crss 59 82.6 pF VGS=0V,VDS=15V,F=1.0MHZ 2
Continuous source current IS 7 A VG=VD=0V,Force current 2
Pulsed source current ISM 35 A VG=VD=0V,Force current 2
Drain-source voltage VDSS 30 V TA=25°C 1
Gate-source voltage VGS -20 20 V TA=25°C, printed as +20 1
Continuous drain current ID 7 A VGS@10V, TA=25ºC 1
Continuous drain current ID 5.6 A VGS@10V, TA=70ºC 1
Pulsed drain current IDM 35 A TA=25°C 1
Single pulse avalanche energy EAS 20 mJ VDD=25V,VGS=10V, L=0.1mH, IAS=20A 2
Avalanche current IAS 20 A TA=25°C 1
Total power dissipation PD 1.5 W TA=25ºC 1
Junction and storage temperature range TJ,TSTG -55 150 ºC 1
Thermal resistance-junction to ambient RθJA 85 ºC/W 1
Thermal resistance-junction to case RθJC 25 ºC/W 1
BVDSS Temperature coefficient △BVDSS/△TJ 0.034 V/°C Reference to 25°C, ID=1mA 2
VGS(th) Temperature coefficient △VGS(th) 3.84 mV/°C 2
Forward transconductance gFS 6.2 S VDS=5V,ID=7A 2
Reverse recovery time trr 7.2 nS IF=7A,dl/dt=100A/us, TJ=25°C 2
Reverse recovery charge Qrr 2.9 nC IF=7A,dl/dt=100A/us, TJ=25°C 2

CAD (KiCad official)

  • Symbol: KIA4603AE
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: kia4603ae-etched.step / kia4603ae-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); kia4603ae.step / kia4603ae.glb are the bare package body.

Provenance

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

  • Datasheet: KIA Semicon Tech datasheet (4 pp, sha256 b1c9d2426e08d3d0, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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