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KIA2305

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KIA Semicon Tech MOSFETs, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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KIA2305

KIA Semicon Tech · MOSFETs · SOT-23

KIA2305 from KIA Semicon Tech, in a SOT-23. 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; controls the channel, with VGS rated at ±12 V maximum and threshold VGS(th) of -0.45 V to -1.0 V.
2 S passive Source; continuous source (body diode) current is rated at -1.6 A.
3 D passive Drain; VDS is rated at -20 V and continuous drain current is -3.5 A at TA=25°C.

Key specifications

Parameter Value
Manufacturer KIA Semicon Tech
Package SOT-23
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
Drain-source voltage VDS -20 V 1
Gate-source voltage VGS 12 V 1
Drain current continuous ID -3.5 A TJ=150 ºC, TA=25°C 1
Pulsed drain current IDM 12 A 1
Continuous source current (diode conduction) IS -1.6 A 1
Power dissipation PD 1.25 W TA=25°C 1
Junction and storage temperature range TJ ,TSTG -55 150 ºC 1
Maximum junction-ambient RthJA 100 ºC/W t<5 sec 1
Maximum junction-ambient 130 ºC/W 1
Drain-source breakdown voltage V(BR)DSS -20 V VGS=0V,ID=-10μA 2
Gate threshold voltage VGS(th) -0.45 -1 V VDS=VGS, ID=-250μA 2
Gate-body leakage IGSS 100 nA VGS=+12V, VDS=0V 2
Zero gate voltage drain current IDSS -50 nA VDS=-16V, VGS=0V 2
On-state drain current ID(on) -6 A VDS<-5V, VGS=-4.5V 2
On-state drain current ID(on) -3 A VDS<-5V, VGS=-2.5V 2
Static drain-source on-resistance RDS(on) 0.045 0.055 Ω VGS=-4.5V,ID=-3.5A 2
Static drain-source on-resistance RDS(on) 0.06 0.075 Ω VGS=-2.5V,ID=-3.0A 2
Static drain-source on-resistance RDS(on) 0.09 0.095 Ω VGS=-1.8V,ID=-2.0A 2
Diode forward voltage VSD -1.28 V VGS=0V,IS=-1.6A 2
Total gate charge Qg 10 15 nC VDS=-4.0V, VGS=-4.5V, ID=-3.5A 2
Turn-on delay time td(on) 13 20 ns VDD=-4V, ID =-1.0A, RL=4Ω, RG=6Ω, VGEN=-4.5V 2
Rise time tr 25 40 ns VDD=-4V, ID =-1.0A, RL=4Ω, RG=6Ω, VGEN=-4.5V 2
Turn-off delay time td(off) 55 80 ns VDD=-4V, ID =-1.0A, RL=4Ω, RG=6Ω, VGEN=-4.5V 2
Fall time tf 19 35 ns VDD=-4V, ID =-1.0A, RL=4Ω, RG=6Ω, VGEN=-4.5V 2

CAD (KiCad official)

  • Symbol: KIA2305
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: kia2305-etched.step / kia2305-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); kia2305.step / kia2305.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 d16e1d8e2f8a2326, retrieved 2026-10-19, 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