Grayhill Part Review
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Part Information Review: Grayhill 71ADF30-01-2-AJN
Date: 2026-07-21 Official Grayhill product page: https://grayhill.com/products/rotational-controls/rotary-switches/multi-deck-rotary-switch/...
Completed the part review and saved the detailed findings in Part Information Review: Grayhill 71ADF30-01-2-AJN.
Open items:
- The official Grayhill datasheet was found, but the visible library part still reports the part-level Datasheet URL as blank after attempted updates.
- Main issues flagged: blank metadata, missing pin-function descriptions, likely undersized 0.88 mm footprint drill, and footprint orientation needing confirmation.
Suggested next steps:
- Manually set the part-level Datasheet URL to
https://www.grayhill.com/wp-content/uploads/media/71-datasheet.pdf. - Update manufacturer/type/description metadata.
- Revise pin descriptions for C1/C2 and throws 1–12.
- Verify or revise the footprint drill/slot sizing before release.
Fix metadata and footprint
Update part metadata
Add pin descriptions
Revise footprint holes
Check orientation mapping
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Part Information Review: Grayhill 71ADF30-01-2-AJN
Date: 2026-07-21
Sources
- Official Grayhill product page: https://grayhill.com/products/rotational-controls/rotary-switches/multi-deck-rotary-switch/71/71adf30-01-2-ajn/
- Official Grayhill Series 71 datasheet: https://www.grayhill.com/wp-content/uploads/media/71-datasheet.pdf
- Flux library entry:
371d6ec4-c652-4b09-99d0-c61d362bbffa
Current Flux Part Information Observed
Table
| Field | Current value |
|---|---|
| Name / MPN | 71ADF30-01-2-AJN |
| Description | N/A / Manufacturer Recommendations Grayhill |
| Terminal count | 14 |
| Designator prefix | S |
| Manufacturer Name | Blank in library search result |
| Part Type | Blank in library search result |
| Datasheet URL | Blank in library search result |
| Package / footprint | KiCad footprint asset SW_71ADF30-01-2-AJN.kicad_mod |
| 3D model | 71ADF30-01-2-AJN.step |
Note: I found the official datasheet URL and attempted to set it through the available project/property mutation paths. The visible library search result still reports the part-level Datasheet URL as blank, so the part-level property should be updated manually or with a part-property editor if available.
Official Part Decode and Key Specs
71ADF30-01-2-AJN decodes as a Grayhill Series 71 rotary switch:Table
| Code / attribute | Meaning |
|---|---|
71 | Series 71 rotary switch |
A | 0.125 in shaft |
D | Adjustable stops |
F | PC-mount terminals |
30 | 30 degree angle of throw |
01 | 1 deck |
2 | 2 poles per deck |
AJ | Adjustable positions/stops |
N | Non-shorting / break-before-make contacts |
Key product specs from Grayhill/product listings:
- Function: Series 71 multi-deck rotary switch, DP6T when adjusted for full 6-position travel
- Positions: adjustable, 2 to 6 positions per pole
- Decks: 1
- Poles: 2
- Throw angle: 30 degrees
- Contact action: non-shorting / break-before-make
- Termination: PC mount / through-hole
- Shaft diameter: 0.125 in
- Maximum switch rating: 250 mA; product/distributor data also references 115 VAC / 30 VDC use cases
- Contact resistance: 20 mΩ initial, 50 mΩ max after life per Series 71 data
- Insulation resistance: 1,000 MΩ minimum between terminals and shaft; 50,000 MΩ initial
- Dielectric withstand: 500 VAC minimum between mutually insulated parts
- Carry current: 4 A carry current with 20 °C max contact temperature rise per Series 71 data
Symbol / Pin Cross-Check
Current schematic symbol implementation uses fourteen passive terminal elements:
- Switched terminals:
1through12 - Common terminals:
C1,C2 - Pin type: Passive
- Pin descriptions: not populated beyond pin number/type
This terminal count is consistent with a 30-degree, 2-pole adjustable Series 71 switch:
Table
| Switch position | Pole 1 connection | Pole 2 connection |
|---|---|---|
| 1 | C1 to 1 | C2 to 7 |
| 2 | C1 to 2 | C2 to 8 |
| 3 | C1 to 3 | C2 to 9 |
| 4 | C1 to 4 | C2 to 10 |
| 5 | C1 to 5 | C2 to 11 |
| 6 | C1 to 6 | C2 to 12 |
Symbol findings
- Terminal count and names
1-12,C1,C2appear appropriate for DP6T/full 6-position use. - All terminals being Passive is acceptable electrically for a mechanical switch.
- The symbol is low-information: it does not communicate the DP6T internal switching relationship, adjustable stop range, or break-before-make behavior.
- Pin descriptions should be added:
C1 = Common pole 1,1-6 = Pole 1 throws,C2 = Common pole 2,7-12 = Pole 2 throws.
Footprint Cross-Check
Current footprint observations:
- Footprint asset:
SW_71ADF30-01-2-AJN.kicad_mod - Pads
1-12: through-hole, row at y = 0, 1.905 mm pitch, x from +10.4775 mm to -10.4775 mm - Pad
C1: x = +7.62 mm, y = +2.794 mm - Pad
C2: x = -7.62 mm, y = +2.794 mm - Pad size: 1.32 mm diameter
- Drill: 0.88 mm
- Pad 1 is rectangular; others circular
Footprint findings
- The main row pitch of 1.905 mm equals 0.075 in and appears consistent with the Grayhill PC-terminal pattern.
- The common-terminal x offset of 7.62 mm equals 0.300 in and y offset of 2.794 mm equals 0.110 in; these appear consistent with the Series 71 PC-mount footprint geometry.
- Overall pad placement is likely derived from the manufacturer footprint geometry and appears plausible.
- The 0.88 mm drill is a concern. The datasheet indicates rectangular PC terminals around 0.020 in thick by 0.037 in wide, with tolerance. A 0.88 mm round finished hole is smaller than the nominal 0.94 mm terminal width and likely too tight for reliable assembly. A plated slot or larger round drill should be verified against Grayhill's recommended hole specification and the intended PCB fabricator's finished-hole tolerance.
- Pin-number orientation should be checked against Grayhill's view convention. The datasheet circuit drawings are referenced from the shaft end; CAD footprints can be mirrored if this view is applied directly without conversion to PCB component-side view.
Mismatches / Issues Flagged
Table
| Severity | Area | Finding | Recommended action |
|---|---|---|---|
| High | Metadata | Datasheet URL is blank in the visible library part result | Set part-level Datasheet URL to https://www.grayhill.com/wp-content/uploads/media/71-datasheet.pdf |
| Medium | Metadata | Manufacturer Name is blank | Set to Grayhill or Grayhill Inc. |
| Medium | Metadata | Part Type is blank | Set to Switch / Rotary Switch |
| Medium | Metadata | Description is not useful | Replace with a descriptive summary: Grayhill Series 71 rotary switch, DP6T, 30° throw, 1 deck, 2 pole, adjustable stop, non-shorting, PC mount, 0.125 in shaft, 250 mA. |
| Medium | Symbol | No functional pin descriptions or switching map | Add descriptions for C1/C2 and throws 1-12; ideally use a DP6T switch symbol or add role metadata |
| High | Footprint | 0.88 mm drill may be too small for the rectangular PC terminals | Verify finished-hole requirement; consider plated slots or larger drills/pads |
| Medium | Footprint | Orientation/mirroring not proven from tool data alone | Confirm pad numbering from shaft-end view vs PCB component-side view before release |
Bottom Line
The 14-terminal symbol/footprint concept is likely correct for this part:
1-12 plus C1 and C2 matches a 30-degree, 2-pole adjustable Series 71 rotary switch used as DP6T at full travel. The main risks are metadata completeness, missing pin-function descriptions, possible footprint hole undersizing, and pin-numbering orientation/mirroring confirmation.Sources
Current Flux Part Information Observed
Official Part Decode and Key Specs
Symbol / Pin Cross-Check
Symbol findings
Footprint Cross-Check
Footprint findings
Mismatches / Issues Flagged
Bottom Line
