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Part Datasheet Review — AC3FAH1-AU-PRE
Date: 2026-07-13
Scope
Reviewed the published Flux part information for AC3FAH1-AU-PRE against the available Amphenol datasheet/customer drawing already linked in the project.
Source Datasheet
Existing Part Metadata Reviewed

Table

FieldExisting / observed valueDatasheet comparison
Manufacturer Part NumberAC3FAH1-AU-PREMatches
Manufacturer NameAmphenolMatches Amphenol / Amphenol Audio / Amphenol Australia
Part TypeConnectorsAcceptable, though singular Connector may be cleaner if taxonomy supports it
Description3 Position Circular Connector Plug, Female Sockets Solder 133 V, 6A, -25C ~ 75CKey electrical specs match; wording should ideally say 3-pole XLR female chassis/panel-mount horizontal PCB connector. Plug is potentially ambiguous versus datasheet horizontal female / chassis mount connector.
Designator PrefixJAppropriate for connector
MountSolderPartially complete; datasheet indicates horizontal PCB / through-hole termination
Datasheet URLSetOfficial Amphenol URL present
Package / CaseNo explicit structured package property observedFootprint exists as embedded KiCad footprint AC3FAH1AUPRE; structured package metadata is incomplete
Key Datasheet Specs

Table

SpecDatasheet value
Connector type3-pole XLR / audio AC-series panel-mount connector
Gender / orientationFemale, horizontal PCB / chassis mount
Positions3 electrical contacts
Rated voltage133 V RMS
Rated current6 A at 40 °C
Test voltage1500 VAC RMS
Operating temperature-25 °C to +75 °C
Contact platingGold contacts, reported as 0.05 µm Au over 2 µm Ni
IP ratingIP40
FlammabilityUL94V-0
Contact resistance2 GΩ
Durability1500 mating cycles
Schematic Symbol / Pin Review
Datasheet schematic chart:

Table

Datasheet contactDatasheet pin descriptionFlux symbol observationResult
PIN 11+G; mating shell and chassis connected to 1+GTerminal designator G, Pin Number 1, Pin Type Unspecified, no pin descriptionNumbering matches; label/description is incomplete
PIN 22Terminal designator 2, Pin Number 2, Pin Type Unspecified, no pin descriptionNumbering matches; metadata incomplete
PIN 33Terminal designator 3, Pin Number 3, Pin Type Unspecified, no pin descriptionNumbering matches; metadata incomplete
Symbol findings
  • Electrical pin count is correct: 3 schematic terminals for the 3 connector contacts.
  • Pin numbering matches the datasheet.
  • Pin 1 should ideally be shown/described as 1+G rather than only G, because the datasheet explicitly ties mating shell and chassis to 1+G.
  • Pin descriptions are missing; all three pins are currently Unspecified type. For a passive connector, Passive is a better pin type for pins 1, 2, and 3.
  • Component review checks report missing parametric symbol properties: Pin Group, Pin Orientation, and Section for G, 2, 3, and also mechanical layout pads/holes 4, 5.
Footprint Review
Embedded footprint: AC3FAH1AUPRE.kicad_mod / module AC3FAH1AUPRE.

Table

Footprint featureExisting footprintDatasheet / drawingResult
Pad 1TH rectangular, at (0.000, 0), size 2.400 mm, drill 1.600 mmPCB layout shows 1.60 mm drill for pin 1 reference originMatches nominal drawing
Pad 2TH circular, at (7.620, 0.640), size 2.400 mm, drill 1.600 mmPCB layout includes 7.62 mm / 0.64 mm offsets and 1.60 mm drillMatches nominal drawing
Pad 3TH circular, at (3.810, 4.450), size 1.800 mm, drill 1.200 mmPCB layout includes 3.81 mm / 4.45 mm offsets and 1.20 mm drillMatches nominal drawing
Mount hole 4NPTH circular, at (7.620, -3.810), drill/size 1.600 mmPCB layout includes 7.62 mm / 3.81 mm and 1.60 mm non-electrical holeMatches nominal drawing
Mount hole 5NPTH circular, at (0.000, -8.890), drill/size 1.600 mmPCB layout includes 8.89 mm and 1.60 mm non-electrical holeMatches nominal drawing
Outline / courtyardFab/silk/courtyard based on customer drawing dimensionsDrawing includes 25.35 mm / 19.50 mm / 19.80 mm / 29.35 mm mechanical referencesAppears consistent from available OCR and embedded footprint
Footprint findings
  • The footprint’s electrical pad coordinates, pad sizes, drill sizes, and two NPTH mounting holes appear to match the datasheet nominal PCB layout.
  • The datasheet states PCB layout tolerance ±0.05 mm; critical production use should still be checked visually against the original drawing PDF because the automated datasheet extraction is OCR-based.
  • No footprint mismatch was found from the available structured layout data and extracted datasheet values.
Mismatches / Issues Flagged
  1. Pin metadata incomplete: pins lack datasheet-backed descriptions and use Unspecified pin type.
  2. Pin 1 label incomplete: datasheet says 1+G; symbol currently shows G with Pin Number 1. This is not a numbering error, but it loses the shell/chassis-ground meaning.
  3. Structured connector properties incomplete: useful properties such as Connector Type = XLR/panel mount, Connector Gender = Female, Connector Positions = 3, termination = horizontal PCB/through-hole, voltage/current/test-voltage/temperature ratings are not fully represented as structured properties.
  4. Description wording ambiguous: existing description includes Plug, Female Sockets; datasheet language is better represented as 3-pole XLR female chassis/panel-mount horizontal PCB connector.
  5. Parametric symbol properties missing: review checks report missing Pin Group, Pin Orientation, and Section for electrical pins and mechanical holes.
Overall Verdict
  • Datasheet URL: already present and official; no update required.
  • MPN/manufacturer/pin count: match the datasheet.
  • Footprint: matches the nominal PCB layout dimensions and drill sizes from the datasheet/customer drawing.
  • Primary cleanup needed: enrich pin descriptions/types and connector metadata; optionally relabel pin 1 as 1+G or add the full Pin 1 / Ground / Chassis / Shell description.

  • Scope

  • Source Datasheet

  • Existing Part Metadata Reviewed

  • Key Datasheet Specs

  • Schematic Symbol / Pin Review

  • Symbol findings

  • Footprint Review

  • Footprint findings

  • Mismatches / Issues Flagged

  • Overall Verdict