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Contents

README

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2SK3541

Changjing · MOSFETs · SOT-723

2SK3541 from Changjing, in a SOT-723. 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; gate-source voltage is rated at ±20 V (VGS) with a maximum continuous drain current of 100 mA.
2 SOURCE passive Source terminal of the N-channel MOSFET; the datasheet gives no separate pin-level limit and specifies source-drain behavior only in the typical characteristics curves.
3 DRAIN passive Drain terminal of the N-channel MOSFET; drain-source voltage is rated at 30 V (VDS) with continuous drain current ID of 100 mA and power dissipation PD of 0.15 W.

Key specifications

Parameter Value
Manufacturer Changjing
Package SOT-723
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 threshold voltage VGS(th) 0.8 1.5 V VDS =3V, ID =100µA 2
Static drain-source on-state resistance RDS(on) 5 8 Ω VGS =4V, ID =10mA 2
Static drain-source on-state resistance RDS(on) 7 13 Ω VGS =2.5V, ID =1mA 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
Forward transconductance gFS 20 mS VDS =3V, ID =10mA 2
Input capacitance Ciss 13 pF VDS =5V,VGS =0V,f =1MHz 2
Output capacitance Coss 9 pF VDS =5V,VGS =0V,f =1MHz 2
Reverse transfer capacitance Crss 4 pF VDS =5V,VGS =0V,f =1MHz 2
Turn-on delay time td(on) 15 ns VGS=5V,VDD=5V, ID =10mA, RL=500Ω,RG=10Ω 2
Rise time tr 35 ns VGS=5V,VDD=5V, ID =10mA, RL=500Ω,RG=10Ω 2
Turn-off delay time td(off) 80 ns VGS=5V,VDD=5V, ID =10mA, RL=500Ω,RG=10Ω 2
Fall time tf 80 ns VGS=5V,VDD=5V, ID =10mA, RL=500Ω,RG=10Ω 2
Drain-source voltage VDS 30 V Ta=25℃ 1
Gate-source voltage VGS -20 20 V Ta=25℃ 1
Continuous drain current ID 100 mA Ta=25℃ 1
Power dissipation PD 0.15 W Ta=25℃ 1
Junction temperature TJ 150 ℃ 1
Storage temperature Tstg -55 150 ℃ 1
Thermal resistance from junction to ambient RθJA 833 ℃/W Junction to ambient 1

CAD (KiCad official)

  • Symbol: 2SK3541
  • Footprint: Package_TO_SOT_SMD:SOT-723
  • 3D model: SOT-723, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.5 mm nominal SOT-723 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: 2sk3541-etched.step / 2sk3541-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 2sk3541.step / 2sk3541.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (5 pp, sha256 0c83865a6a0b1ac2, 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