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Contents

README

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FDN339AN-SL

Slkor SLKORMICRO Elec · MOSFETs · SOT-23

FDN339AN-SL from Slkor SLKORMICRO Elec, 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; gate-source voltage is rated ±10 V maximum, with threshold VGS(th) of 0.4 V min to 1.5 V max at ID=250 µA.
2 S passive Source; continuous diode forward current is rated 3 A and the source-drain forward voltage is 1.2 V max at Is=3.0 A.
3 D passive Drain; drain-source voltage is rated 20 V, continuous drain current 3 A, and pulsed drain current 20 A, with RDS(on) of 35 mΩ max at VGS=4.5 V.

Key specifications

Parameter Value
Manufacturer Slkor SLKORMICRO Elec
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 -10 10 V 1
Maximum Junction Temperature TJ 150 °C 1
Storage Temperature Range TSTG -50 155 °C 1
Diode Continuous Forward Current IS 3 A Tc=25°C 1
Pulse Drain Current Tested IDM 20 A Tc=25°C 1
Continuous Drain Current ID 3 A Tc=25°C 1
Maximum Power Dissipation PD 0.5 W Tc=25°C 1
Thermal Resistance Junction-to-Ambient RθJA 250 °C/W 1
Drain-Source Breakdown Voltage BV(BR)DSS 20 V VGS=0V, ID=250μA 2
Zero Gate Voltage Drain Current IDSS 1 uA VDS=16V, VGS=0V 2
Gate-Body Leakage Current IGSS -100 100 nA VGS=±8V, VDS=0V 2
Gate Threshold Voltage VGS(th) 0.4 0.85 1.5 V VDS=VGS, ID=250μA 2
Drain-Source On-State Resistance RDS(on) 29 35 mΩ VGS=4.5V, ID=3.0A 2
Drain-Source On-State Resistance RDS(on) 39 50 mΩ VGS=2.5V, ID=2.4A 2
Forward on voltage VSD 1.2 V Tj=25℃, Is=3.0A 2

CAD (KiCad official)

  • Symbol: FDN339AN-SL
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: fdn339an-sl-etched.step / fdn339an-sl-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); fdn339an-sl.step / fdn339an-sl.glb are the bare package body.

Provenance

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

  • Datasheet: Slkor SLKORMICRO Elec datasheet (4 pp, sha256 bc60c377a6ef3eaf, retrieved 2026-10-17, 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