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2SK3019A

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Changjing MOSFETs, SOT-523. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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2SK3019A

Changjing · MOSFETs · SOT-523

2SK3019A from Changjing, in a SOT-523. 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 GATE input Gate terminal of the N-channel MOSFET, with threshold voltage VGS(th) of 0.7 V min and 1.5 V max at VDS = 3V, ID = 100µA, and gate-source leakage of ±2 µA max at VGS = ±20V.
2 SOURCE passive Source terminal of the N-channel MOSFET; the datasheet gives the source-to-drain diode forward characteristic (IS vs VSD) in the typical characteristics.
3 DRAIN passive Drain terminal of the N-channel MOSFET, with drain-source breakdown voltage V(BR)DSS of 30 V min at VGS = 0V, ID = 10µA and zero-gate-voltage drain current IDSS of 1.0 µA max at VDS = 30V, VGS = 0V.

Key specifications

Parameter Value
Manufacturer Changjing
Package SOT-523
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 breakdown voltage V(BR)DSS 30 V VGS = 0V, ID =10µA 2
Gate-source leakage current IGSS 2 µA VDS =0V, VGS =±20V 2
Zero gate voltage drain current IDSS 1 µA VDS =30V, VGS =0V 2
Gate threshold voltage VGS(th) 0.7 1.5 V VDS =3V, ID =100µA 2
Static drain-source on-state resistance RDS(on) 0.88 2 Ω VGS =4V, ID =10mA 2
Static drain-source on-state resistance RDS(on) 1.4 3 Ω VGS =2.5V, ID =1mA 2
Forward transconductance gFS 20 mS VDS =3V, ID =10mA 2

CAD (KiCad official)

  • Symbol: 2SK3019A
  • Footprint: Package_TO_SOT_SMD:SOT-523
  • 3D model: SOT-523, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.8 mm nominal SOT-523 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
  • 3D model files: 2sk3019a-etched.step / 2sk3019a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 2sk3019a.step / 2sk3019a.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (5 pp, sha256 450a494a064998ff, 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