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FS3400MLT1 A09T

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

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FS3400MLT1 A09T

FOSAN · MOSFETs · SOT-23

FS3400MLT1 A09T from FOSAN, 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 limited to ±12 V, with a threshold of 0.65 V min, 0.9 V typ and 1.5 V max at ID=250uA.
2 S passive Source; the body diode forward drop is 1.2 V max at ISD=5.6A, and continuous drain current is 5.8 A at TA=25°C.
3 D passive Drain; drain-source voltage is rated at 30 V, with continuous current of 5.8 A and pulsed current of 23 A.

Key specifications

Parameter Value
Manufacturer FOSAN
Package SOT-23
Category Triode/MOS Tube/Transistor
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 BVDSS 30 V 1
Gate-Source Voltage VGS 12 V 1
Drain Current (continuous) ID 5.8 A at TA = 25°C 1
Drain Current (pulsed) IDM 23 A 1
Total Device Dissipation PD 1300 mW at TA = 25°C 1
Junction/Storage Temperature TJ,Tstg -55 150 ℃ 1
Drain-Source Breakdown Voltage BVDSS 30 V ID =250uA,VGS=0V 2
Gate Threshold Voltage VGS(th) 0.65 0.9 1.5 V ID =250uA,VGS= VDS 2
Zero Gate Voltage Drain Current IDSS 1 uA VGS=0V, VDS= 30V 2
Gate Body Leakage IGSS 100 nA VGS=+12V, VDS=0V 2
Static Drain-Source On-State Resistance RDS(ON) 21 27 mΩ ID=5.8A,VGS=10V 2
Static Drain-Source On-State Resistance RDS(ON) 25 33 mΩ ID=5A,VGS=4.5V 2
Static Drain-Source On-State Resistance RDS(ON) 33 51 mΩ ID=3A,VGS=2.5V 2
Diode Forward Voltage Drop VSD 1.2 V ISD=5.6A,VGS=0V 2
Thermal Resistance Junction-Ambient RΘJA 96 ℃/W 1
Input Capacitance CISS 630 pF VGS=0V, VDS=15V,f=1MHz 2
Common Source Output Capacitance COSS 55 pF VGS=0V, VDS=15V,f=1MHz 2
Reverse Transfer Capacitance CRSS 71 pF VGS=0V, VDS=15V,f=1MHz 2
Total Gate Charge Qg 17 nC VDS=15V, ID=5.6A, VGS=10V 2
Gate Source Charge Qgs 2 nC VDS=15V, ID=5.6A, VGS=10V 2
Gate Drain Charge Qgd 2 nC VDS=15V, ID=5.6A, VGS=10V 2
Turn-ON Delay Time td(on) 5 ns VDS=15V ID=5.6A, RGEN=3Ω,VGS=10V 2
Turn-ON Rise Time tr 28 ns VDS=15V ID=5.6A, RGEN=3Ω,VGS=10V 2
Turn-OFF Delay Time td(off) 16 ns VDS=15V ID=5.6A, RGEN=3Ω,VGS=10V 2
Turn-OFF Fall Time tf 26 ns VDS=15V ID=5.6A, RGEN=3Ω,VGS=10V 2

CAD (KiCad official)

  • Symbol: FS3400MLT1 A09T
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: fs3400mlt1-a09t-etched.step / fs3400mlt1-a09t-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); fs3400mlt1-a09t.step / fs3400mlt1-a09t.glb are the bare package body.

Provenance

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

  • Datasheet: FOSAN datasheet (5 pp, sha256 9f3876d2cec2295d, retrieved 2026-10-21, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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