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Contents

README

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2SK3018W

hongjiacheng · MOSFETs · SOT-323

2SK3018W from hongjiacheng, in a SOT-323. 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 terminal of the N-channel MOSFET, with an integrated gate protection diode; VGS is rated ±20 V.
2 S passive Source terminal of the N-channel MOSFET, rated for a drain-source voltage VDS of 30 V.
3 D passive Drain terminal of the N-channel MOSFET, rated for 30 V VDS and 0.1 A continuous drain current (0.4 A pulsed).

Key specifications

Parameter Value
Manufacturer hongjiacheng
Package SOT-323
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 30 V 1
Gate-source Voltage VGS -20 20 V 1
Drain Current Id 0.1 A 1
Pulsed Drain Current IDM 0.4 A 1
Total Power Dissipation Pd 200 mW 1
Storage temperature Tstg -55 150 ℃ 1
Junction temperature Tj -55 150 ℃ 1
Typical Thermal Resistance RθJ-A 625 ℃/W 1
Drain-Source Breakdown Voltage BVDSS 30 V VGS=0V, ID=250μA 2
Zero Gate Voltage Drain Current IDSS 1 μA VDS=30V, VGS=0V 2
Gate-Body Leakage Current IGSS -10 10 μA VGS=±20V, VDS=0V 2
Gate Threshold Voltage VGS(th) 0.8 1.5 V VDS=3.0V, ID=0.1mA 2
Static Drain-Source On-Resistance RDS(ON) 8 Ω VGS=4.0V, ID=10mA 2
Static Drain-Source On-Resistance RDS(ON) 13 Ω VGS=2.5V, ID=1.0mA 2
Forward Transconductance gfs 20 mS VDS=3.0V, ID=10mA 2

CAD (KiCad official)

  • Symbol: 2SK3018W
  • Footprint: Package_TO_SOT_SMD:SOT-323_SC-70
  • 3D model: SOT-323 (KiCad packages3D, STEP)
  • 3D model files: 2sk3018w-etched.step / 2sk3018w-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 2sk3018w.step / 2sk3018w.glb are the bare package body.

Provenance

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

  • Datasheet: hongjiacheng datasheet (4 pp, sha256 35056c72c14f565a, retrieved 2026-10-09, 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