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KNY3403B

Public Made by Adom

by adom

KIA Semicon Tech MOSFETs, DFN-8(5x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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KNY3403B

KIA Semicon Tech · MOSFETs · DFN-8(5x6)

KNY3403B from KIA Semicon Tech, in a DFN-8(5x6). 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 Source passive Source terminal of the N-channel MOSFET, sharing the body diode path with the drain-source ratings of 30 V VDSS and 85 A continuous drain current.
2 Source passive Source terminal of the N-channel MOSFET, sharing the body diode path with the drain-source ratings of 30 V VDSS and 85 A continuous drain current.
3 Source passive Source terminal of the N-channel MOSFET, sharing the body diode path with the drain-source ratings of 30 V VDSS and 85 A continuous drain current.
4 Gate input Gate terminal of the MOSFET; gate-source voltage is limited to ±20 V (VGSS).
5 Drain passive Drain terminal of the MOSFET; drain-source voltage is rated 30 V (VDSS) with 85 A continuous drain current at TC = 25 ºC.
6 Drain passive Drain terminal of the MOSFET; drain-source voltage is rated 30 V (VDSS) with 85 A continuous drain current at TC = 25 ºC.
7 Drain passive Drain terminal of the MOSFET; drain-source voltage is rated 30 V (VDSS) with 85 A continuous drain current at TC = 25 ºC.
8 Drain passive Drain terminal of the MOSFET; drain-source voltage is rated 30 V (VDSS) with 85 A continuous drain current at TC = 25 ºC.
9 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer KIA Semicon Tech
Package DFN-8(5x6)
Category Transistors/Thyristors
Pins 9

CAD (KiCad official)

  • Symbol: KNY3403B
  • Footprint: Package_DFN_QFN:DFN-S-8-1EP_6x5mm_P1.27mm
  • 3D model: DFN-8(5x6) (KiCad packages3D, STEP)
  • 3D model files: kny3403b-etched.step / kny3403b-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); kny3403b.step / kny3403b.glb are the bare package body.

Provenance

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

  • Datasheet: KIA Semicon Tech datasheet (5 pp, sha256 a9e3d3cbd3c0c8ae, 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