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Contents

README

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AO3400A-MS

MSKSEMI · MOSFETs · SOT-23

AO3400A-MS from MSKSEMI, 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 limit is ±12 V and the device suits 2.5 V gate drive applications.
2 S passive Source terminal of the N-channel MOSFET.
3 D passive Drain; drain-source voltage rating is 30 V and continuous drain current is 5.8 A at TA=25℃.

Key specifications

Parameter Value
Manufacturer MSKSEMI
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 VDS 30 V 2
Gate-Source Voltage VGS -12 12 V 2
Drain Current - Continuous ID 5.8 A TA=25℃ 2
Drain Current - Continuous ID 4.2 A TA=70℃ 2
Drain Current - Pulsed IDM 21.2 A 2
Power Dissipation PD 1.56 W TA=25℃ 2
Power Dissipation - Derate above 25℃ PD 0.012 W/℃ Derate above 25℃ 2
Storage Temperature Range TSTG -55 150 ℃ 2
Operating Junction Temperature Range TJ -55 125 ℃ 2
Thermal Resistance Junction to Ambient RθJA 80 ℃/W 2

CAD (KiCad official)

  • Symbol: AO3400A-MS
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: ao3400a-ms-etched.step / ao3400a-ms-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ao3400a-ms.step / ao3400a-ms.glb are the bare package body.

Provenance

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

  • Datasheet: MSKSEMI datasheet (7 pp, sha256 cc47de1eb61ec8e8, retrieved 2026-11-12, 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