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YFW3400B

Public Made by Adom

by adom

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

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YFW3400B

YFW · MOSFETs · SOT-23

YFW3400B from YFW, 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 limited to ±12 V with a threshold VGS(th) of 0.5 V min to 1.2 V max at ID=250 µA.
2 S passive Source; continuous source current IS up to 3.9 A and pulsed source current up to 16 A, with body-diode forward voltage at most 1.2 V.
3 D passive Drain; drain-source voltage rated 30 V, continuous drain current 5.8 A at TA=25°C and pulsed drain current 16 A.

Key specifications

Parameter Value
Manufacturer YFW
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 30 V 1
Gate-Source Voltage VGS -12 12 V 1
Continuous Drain Current ID 5.8 A VGS @ 4.5V, TA=25℃ 1
Continuous Drain Current ID 3.1 A VGS @ 4.5V, TA=70℃ 1
Pulsed Drain Current IDM 16 A 1
Total Power Dissipation PD 1 W TA=25℃ 1
Storage Temperature Range TSTG -55 150 °C 1
Operating Junction Temperature Range TJ -55 150 °C 1
Thermal Resistance Junction-ambient RθJA 125 °C/W Surface mounted on 1 inch² FR-4 board, 2OZ copper (note 1) 1
Thermal Resistance Junction-Case RθJC 80 °C/W Note 1 1
Drain-Source Breakdown Voltage BVDSS 30 32 V VGS=0V, ID=250uA 2
Static Drain-Source On-Resistance RDS(ON) 26 28 mΩ VGS=10V, ID=4A 2
Static Drain-Source On-Resistance RDS(ON) 29 32 mΩ VGS=4.5V, ID=3A 2
Static Drain-Source On-Resistance RDS(ON) 38 47 mΩ VGS=2.5V, ID=2A 2
Gate Threshold Voltage VGS(th) 0.5 0.95 1.2 V VDS=VGS, ID=250uA 2
Drain-Source Leakage Current IDSS 1 μA VDS=24V, VGS=0V, TJ=25℃ 2
Drain-Source Leakage Current IDSS 5 μA VDS=24V, VGS=0V, TJ=55℃ 2
Gate-Source Leakage Current IGSS -100 100 nA VGS=±12V, VDS=0V 2
Gate Resistance Rg 1.5 3 Ω VDS=0V, VGS=0V, f=1MHz 2
Total Gate Charge (4.5V) Qg 8.34 11.7 nC VDS=15V, VGS=4.5V, ID=3A 2
Gate-Source Charge Qgs 1.26 1.8 nC VDS=15V, VGS=4.5V, ID=3A 2
Gate-Drain Charge Qgd 1.88 2.6 nC VDS=15V, VGS=4.5V, ID=3A 2
Turn-on delay time td(on) 3.2 6.4 ns VDD=15V, VGS=4.5V, RG=3.3Ω, ID=3A 2
Rise Time Tr 41.8 75 ns VDD=15V, VGS=4.5V, RG=3.3Ω, ID=3A 2
Turn-Off Delay Time td(OFF) 21.2 42 ns VDD=15V, VGS=4.5V, RG=3.3Ω, ID=3A 2
Fall Time tf 6.4 12.8 ns VDD=15V, VGS=4.5V, RG=3.3Ω, ID=3A 2
Input Capacitance Ciss 662 927 PF VDS=15V, VGS=0V, f=1.0MHz 2
Output Capacitance Coss 51.3 72 PF VDS=15V, VGS=0V, f=1.0MHz 2
Reverse Transfer Capacitance Crss 43.6 61 PF VDS=15V, VGS=0V, f=1.0MHz 2
Continuous Source Current IS 3.9 A VG=VD=0V, Force Current 2
Pulsed Source Current ISM 16 A VGS=0V, IS=1A, TJ=25℃ 2
Diode Forward Voltage VSD 1.2 V 2

CAD (KiCad official)

  • Symbol: YFW3400B
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: yfw3400b-etched.step / yfw3400b-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); yfw3400b.step / yfw3400b.glb are the bare package body.

Provenance

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

  • Datasheet: YFW datasheet (5 pp, sha256 119294ed4c26b1f3, 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