Molex Part Audit
Worked for 24 mins 54 sec
Created a project doc
Part Audit - Molex 0524372271 / 52437-2271
Date: 2026-07-14 Reviewed available part metadata, schematic symbol terminals, footprint/land pattern data, and pin descriptions for the pub...
Completed the part audit and added the official Molex drawing as the part’s Datasheet URL. I created the detailed report here: Part Audit - Molex 0524372271 / 52437-2271.
Open items:
- Likely footprint mismatch: P1/P2 fitting-nail pads appear inward and slightly oversized versus the Molex drawing.
- Symbol metadata is incomplete: pin descriptions are missing and all pin types are
Unspecified.
Suggested next steps:
- Update P1/P2 footprint pads after final visual confirmation against the Molex drawing.
- Add pin descriptions for pins 1–22 and P1/P2.
- Change pin types from
Unspecifiedto passive/mechanical as appropriate.
I also filed an internal Flux part-quality report for the likely fitting-nail footprint issue.
Fix pads and metadata
Fix P1/P2 pads
Add pin descriptions
Run footprint review
Export audit evidence
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Part Audit - Molex 0524372271 / 52437-2271
Date: 2026-07-14
Scope
Reviewed available part metadata, schematic symbol terminals, footprint/land pattern data, and pin descriptions for the published Flux part project.
Official source used
- Molex product page: https://www.molex.com/en-us/products/part-detail/524372271
- Official Molex customer/sales drawing: https://www.molex.com/content/dam/molex/molex-dot-com/products/automated/en-us/salesdrawingpdf/524/52437/524372271_sd.pdf
- Drawing: SD-52437-019, 0.5 FPC CONN. ZIF FOR SMT R/A (BOTTOM CONTACT) GOLD PLATING
The part project did not initially expose a Datasheet URL. I added the official Molex customer/sales drawing URL to the part's Datasheet URL property.
Current part metadata observed after update
Table
| Field | Current value / finding |
|---|---|
| Project / part name | 0524372271 |
| Manufacturer | Molex |
| Manufacturer Part Number | 0524372271 |
| Known aliases | 524372271, 52437-2271 |
| Part Type | Connector |
| Designator Prefix | J |
| Datasheet URL | Official Molex drawing URL added |
| Description | 22-position right-angle 0.50 mm FFC/FPC ZIF connector, bottom contact, SMT, 2.0 mm profile |
Key datasheet / product specs
Table
| Spec | Datasheet / Molex value |
|---|---|
| Connector family | Molex Easy-On FFC/FPC Connector, Series 52437 |
| Positions / circuits | 22 |
| Pitch | 0.50 mm |
| Orientation | Right angle |
| Contact position | Bottom contact |
| Actuator | Slider / ZIF slide lock |
| Mounting | Surface mount |
| Height above PCB | 2.00 mm |
| Mating FFC/FPC thickness | 0.30 mm nominal, drawing recommends 0.30 ±0.05 mm |
| Current rating | 0.5 A per contact |
| Voltage rating | 50 V |
| Operating temperature | -40 °C to +85 °C |
| Contact plating | Gold |
| Contact material | Phosphor bronze |
| Mating cycles | 20 max |
Schematic symbol cross-check
Table
| Item | Current symbol | Datasheet expectation | Result |
|---|---|---|---|
| Signal contacts | Terminals 1 through 22 present | 22 FFC/FPC contacts | PASS |
| Mechanical tabs | P1 and P2 terminals present | Two fitting nails / solder retention tabs are present in footprint drawing | PASS / acceptable if exposed intentionally |
| Pin names / numbers | 1-22, P1, P2 | 1-22 plus fitting nails/tabs | PASS |
| Pin descriptions | Missing on all terminals | Pins 1-22 should be generic FFC/FPC contacts; P1/P2 should be fitting nails / hold-down solder tabs | MISMATCH / incomplete metadata |
| Pin electrical type | All Unspecified | Contacts should be Passive or connector signal; P1/P2 should be Mechanical/Passive with explicit retention-tab description | MISMATCH / incomplete metadata |
Recommended terminal descriptions:
- Pins 1-22:
FFC/FPC bottom-contact signal contact n. - P1/P2:
Fitting nail / hold-down solder tab; mechanical retention, not a signal contact.
Footprint cross-check
Signal pads
Table
| Footprint feature | Current footprint | Molex drawing expectation | Result |
|---|---|---|---|
| Signal pad count | 22 | 22 | PASS |
| Signal pad pitch | 0.50 mm | 0.50 mm | PASS |
| Signal pad X span | -5.25 mm to +5.25 mm, 10.5 mm total | 0.5 × (22 - 1) = 10.5 mm | PASS |
| Signal pad size | 0.30 mm × 0.80 mm | 0.30 mm × 0.80 mm reference | PASS |
Body / outline
Table
| Footprint feature | Current footprint | Molex drawing expectation | Result |
|---|---|---|---|
| Fab body width | 17.6 mm | D = 17.6 mm for 22 circuits | PASS |
| Fab body depth | 5.2 mm shown by footprint fab outline | Drawing includes body/actuator depth callouts; not fully validated from text extraction | Review visually before release |
| Pin-1 / orientation marker | Triangle/marker present near left side | Drawing indicates circuit no. 1 mark | PASS |
Fitting-nail pads P1/P2
Table
| Footprint feature | Current footprint | Molex drawing extraction / expected value | Result |
|---|---|---|---|
| P1/P2 count | 2 | 2 fitting nails | PASS |
| P1/P2 pad size | 1.30 mm × 3.05 mm | Drawing extraction indicates 1.25 mm × 3.05 mm | LIKELY MISMATCH |
| P1/P2 X location | ±7.15 mm | Independent extraction/review indicates approx. ±8.90 mm for 22 circuits | LIKELY MISMATCH |
Finding: the footprint signal pads match the Molex drawing well, but the side fitting-nail pads appear likely incorrect. The current P1/P2 pads are about 1.75 mm inward versus the extracted drawing-based expectation and are 1.30 mm wide rather than the drawing's apparent 1.25 mm callout. This should be visually confirmed against the Molex drawing land-pattern detail before applying a footprint correction.
Mismatches / action items
- Likely footprint issue: P1/P2 fitting-nail pad position and width appear inconsistent with Molex SD-52437-019. Recommend correcting to the manufacturer land pattern after final visual confirmation.
- Symbol metadata incomplete: Pins 1-22 and P1/P2 lack Pin Description values.
- Pin Type incomplete: All terminals are set to Unspecified. Recommend setting signal contacts to Passive/connector signal and P1/P2 to Mechanical or Passive with a clear hold-down-tab description.
- Part metadata now includes Datasheet URL: The official Molex drawing URL has been added.
Internal follow-up
A Flux internal part-quality report was filed for the likely P1/P2 fitting-nail footprint issue so the source library part can be reviewed.
Scope
Official source used
Current part metadata observed after update
Key datasheet / product specs
Schematic symbol cross-check
Footprint cross-check
Signal pads
Body / outline
Fitting-nail pads P1/P2
Mismatches / action items
Internal follow-up
