component

AO4805

Public Made by Adom

by adom

Alpha & Omega Semiconductor FET, MOSFET Arrays, SOIC-8. KiCad symbol, footprint and 3D as used on Adom boards; pin functions from the manufacturer datasheet.

componenttransistors/thyristorsao4805board-derived

Verified AO4805

by Claude, at Caleb Taylor's request · last 27 Oct 2026 · 1 record, 1 retired · files match
SymbolFootprint3D modelPins

Verification log 2 records

27 Oct 2026Claude, at Caleb Taylor's requestValidated against Alpha & Omega's AO4805 datasheet (Rev 7.1, March 2024) and AOS SO8 package outline PO-00004 version Lfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓Datasheet: replaced the LCSC copy (2010 file) with AOS's current edition, Rev 7.1 March 2024, from aosmd.com (linked from the AO4805 product page; same file at aosmd.com/res/datasheets/AO4805.pdf). AOS lists the part as Full Production, package SO8
  • ✓All 8 pins match the SOIC-8 top-view pinout and internal schematic (p.1) by number and name: 1 S2, 2 G2, 3 S1, 4 G1, 5 D1, 6 D1, 7 D2, 8 D2. Die assignment checked: MOSFET 1 = G1 (4), S1 (3), D1 (5, 6); MOSFET 2 = G2 (2), S2 (1), D2 (7, 8). No renames needed
  • ✓Pin types: gates input, sources and drains passive (discrete MOSFET convention); unchanged
  • ✓Descriptions rewritten from the p.1 pinout, absolute maximum ratings (VDS -30 V, VGS ±25 V) and the p.2 VGS(th) row; every description cites the new PDF
  • •Footprint vs AOS SO8 outline PO-00004 L (no drawing in the datasheet itself): 8 pads 1.95 x 0.60 mm at e = 1.27 mm, pad centres 4.95 mm apart (pads span x 1.50 to 3.45 mm from centre) vs lead tips at E1/2 = 2.90-3.10 mm with foot L 0.40-1.27 mm, so the pads cover the feet; pad width 0.60 over b 0.31-0.51. AOS's recommended land pattern is larger (2.20 x 0.80 mm pads, centres 5.74 mm apart): the KiCad-library pads are smaller but still cover the leads. No exposed pad. Pin 1 top-left, numbering counter-clockwise
  • ✓3D body (plain STEP) 6.00 x 4.90 x 1.75 mm against E1 5.80-6.20 (lead span), D 4.80-5.00, A 1.35-1.75; leads 0.41 mm wide on 1.27 mm pitch; pin-1 dot top-left over pad 1; Z-up, seated on z = 0, centred on the pads
  • ✓DigiKey 785-1055-2-ND confirmed as AO4805 by Alpha & Omega (tape and reel, Active); Mouser returned no Alpha & Omega listing for AO4805 (searched 2026-10-09 and 2026-10-27): set to not carried
  • ✓Symbol and footprint Datasheet properties point at the manufacturer datasheet URL
  • ✓Symbol Datasheet / MPN / Manufacturer / DigiKey / Mouser / LCSC properties agree with page.json; footprint Datasheet property points at the manufacturer datasheet URL
  • ✓component-page-verify: all checks pass
Evidencedatasheet (Alpha & Omega, Rev 7.1)SO8 package outline PO-00004 L (Alpha & Omega)
Verified files✓ ao4805.kicad_sym✓ ao4805.kicad_mod✓ ao4805.step
9 Oct 2026Claude (AI build)Automated build checks (awaiting human validation)superseded
SymbolFootprint3D modelPinsfor all variants
  • ✓Footprint extracted pad-for-pad from the source board and normalized to the footprint frame (back-side parts un-mirrored)
  • ✓3D model seated z=0 at footprint origin (placement inverse; method centroid-matched to KiCad library models on 59 cases)
  • ✓adom-lbr generate + lint passed
  • ✓8 of 8 pins described from the datasheet (adom-ds2sf, page-cited)
  • •Not yet checked by a person: land pattern vs datasheet, pin-1/orientation, 3D body vs drawing
Evidencedatasheet
Verified files! ao4805.kicad_sym! ao4805.kicad_mod✓ ao4805.step
Spot something wrong? Report it as an issue Propose a fix Records are signed by members of adom.
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
ao4805 / README.md
History Download
Caleb Publish 0.1.1 1e232a3 2d ago

AO4805

Alpha & Omega Semiconductor · FET, MOSFET Arrays · SOIC-8

AO4805 from Alpha & Omega Semiconductor, in a SOIC-8. Symbol, footprint and 3D model are the ones used on Adom board designs (3D model: KiCad library 3D model SOIC-8_3.9x4.9mm_P1.27mm (CC-BY-SA 4.0 with the KiCad library exception)). Pin functions are extracted from the manufacturer datasheet with page references.

Pinout

Pin Name Type Function
1 S2 passive Source of P-channel MOSFET 2 (S2), per the SOIC-8 top-view pinout and the internal schematic. [datasheet p.1]
2 G2 input Gate of P-channel MOSFET 2 (G2). Gate-source voltage ±25 V absolute maximum [datasheet p.1]; gate threshold VGS(th) -1.7 V min, -2.3 V typ, -2.8 V max at ID = -250 µA. [datasheet p.2]
3 S1 passive Source of P-channel MOSFET 1 (S1), per the SOIC-8 top-view pinout and the internal schematic. [datasheet p.1]
4 G1 input Gate of P-channel MOSFET 1 (G1). Gate-source voltage ±25 V absolute maximum [datasheet p.1]; gate threshold VGS(th) -1.7 V min, -2.3 V typ, -2.8 V max at ID = -250 µA. [datasheet p.2]
5 D1 passive Drain of P-channel MOSFET 1 (D1); pins 5 and 6 are both D1. Drain-source voltage -30 V absolute maximum. [datasheet p.1]
6 D1 passive Drain of P-channel MOSFET 1 (D1); pins 5 and 6 are both D1. Drain-source voltage -30 V absolute maximum. [datasheet p.1]
7 D2 passive Drain of P-channel MOSFET 2 (D2); pins 7 and 8 are both D2. Drain-source voltage -30 V absolute maximum. [datasheet p.1]
8 D2 passive Drain of P-channel MOSFET 2 (D2); pins 7 and 8 are both D2. Drain-source voltage -30 V absolute maximum. [datasheet p.1]

Key specifications

Parameter Value
Manufacturer Alpha & Omega Semiconductor
Package SOIC-8
Category Transistors/Thyristors
Pins 8
LCSC C38943
Mouser Not carried
DigiKey 785-1055-2-ND
Distributor summary (LCSC listing, not datasheet) -55℃~+150℃ 18mΩ@10V 2 P-Channel 2.6nF 2.8V 2W 3.6pF 30V 39nC@10V 9A SOIC-8 MOSFETs ROHS

CAD

  • Symbol: ao4805 (source library MOSFET_CDT:AO4805)
  • Footprint: MOSFET_CDT:SOIC-8_3.9x4.9mm_P1.27mm_AO4805
  • 3D model path in footprint: ${KIPRJMOD}/ao4805.step
  • 3D files: ao4805-etched.step / ao4805-etched.glb carry the MPN etch as a separate Adom.LaserEtch part; ao4805.step / ao4805.glb are the bare model.
  • EAGLE/Fusion library: ao4805.lbr (adom-lbr)

Provenance

  • Datasheet: Alpha & Omega Semiconductor AO4805 datasheet (Rev 7.1, March 2024, sha256 b7592fe0daec26e8, retrieved 2026-10-27, tier: mfr)
  • CAD: Footprint and symbol as used on Adom board designs; 3D model: KiCad library 3D model SOIC-8_3.9x4.9mm_P1.27mm (CC-BY-SA 4.0 with the KiCad library exception).
  • Pins: KiCad symbol from the source board + adom-ds2sf datasheet extraction (claude-opus-4-7).

Datasheet PDF