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Contents

README

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ST3422A

STANSON Tech · MOSFETs · SOT-23-3L

ST3422A from STANSON Tech, in a SOT-23-3L. 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 of the N-channel MOSFET, rated for VGSS ±20 V, with a gate threshold VGS(th) of 1 to 3 V at ID = 250 µA.
2 Source passive Source of the N-channel MOSFET, with a continuous source (diode conduction) current IS rated at 1.7 A.
3 Drain passive Drain of the N-channel MOSFET, rated for VDSS of 60 V and a continuous drain current ID of 6.0 A at TA = 25℃.

Key specifications

Parameter Value
Manufacturer STANSON Tech
Package SOT-23-3L
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 VDSS 60 V 2
Gate-Source Voltage VGSS -20 20 V 2
Continuous Drain Current ID 6 A TA=25℃ 2
Continuous Drain Current ID 4.6 A TA=70℃ 2
Pulsed Drain Current IDM 20 A 2
Continuous Source Current (Diode Conduction) IS 1.7 A 2
Power Dissipation PD 2 W TA=25℃ 2
Power Dissipation PD 1.3 W TA=70℃ 2
Operation Junction Temperature TJ -55 150 ℃ 2
Storage Temperature Range TSTG -55 150 ℃ 2
Thermal Resistance-Junction to Ambient RθJA 75 ℃/W 2
Drain-Source Breakdown Voltage V(BR)DSS 60 V VGS=0V,ID=250uA 3
Gate Threshold Voltage VGS(th) 1 3 V VDS=VGS,ID=250uA 3
Gate Leakage Current IGSS -100 100 nA VDS=0V,VGS=±20V 3
Zero Gate Voltage Drain Current IDSS 1 uA VDS=48V,VGS=0V 3
Zero Gate Voltage Drain Current IDSS 10 uA VDS=48V,VGS=0V, TJ=55℃ 3
Drain-source On-Resistance RDS(on) 28 38 mΩ VGS=10V,ID=6.0A 3
Drain-source On-Resistance RDS(on) 35 45 mΩ VGS=4.5V,ID=2.5A 3
Diode Forward Voltage VSD 1.2 V IS=1.7A,VGS=0V 3
Total Gate Charge Qg 10 22 nC VDS=15V, VGS=10V, ID≡6.7A 3
Turn-On Time td(on) 8 15 nS VDD=15V, RL=15Ω, ID=1.0A, VGEN=10V, RG=6Ω 3
Turn-On Rise Time tr 10 20 nS VDD=15V, RL=15Ω, ID=1.0A, VGEN=10V, RG=6Ω 3
Turn-Off Time td(off) 20 40 nS VDD=15V, RL=15Ω, ID=1.0A, VGEN=10V, RG=6Ω 3
Turn-Off Fall Time tf 11 20 nS VDD=15V, RL=15Ω, ID=1.0A, VGEN=10V, RG=6Ω 3

CAD (KiCad official)

  • Symbol: ST3422A
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3L (KiCad packages3D, STEP)
  • 3D model files: st3422a-etched.step / st3422a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); st3422a.step / st3422a.glb are the bare package body.

Provenance

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

  • Datasheet: STANSON Tech datasheet (6 pp, sha256 4cc35a120bb955b7, 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