Mill-Max Part Review
Thought for 15 mins 19 sec
I found an official Mill-Max catalog PDF for the 836/838 series; the current Datasheet URL points to the Mill-Max product page, so I’ll update it to the official PDF and continue the cross-check.
Worked for 2 hrs 12 mins
Created a project doc
Part Verification Report: Mill-Max 836-22-004-10-001101
Date: 2026-07-15 Reviewed available project part information for the published part project 836-22-004-10-001101, including MPN, manufacture...
Completed the part review and updated the Datasheet URL to the official Mill-Max catalog PDF. I created the detailed findings in Part Verification Report.
Open items flagged:
Mountproperty isWire, but should beThrough Hole.- Footprint pitch/pin count look correct, but drill/pad sizes are likely undersized versus the manufacturer drawing.
- Pin descriptions are missing; terminal pin type is
Unspecifiedrather than passive/contact-style.
Suggested next steps:
- Update metadata
MounttoThrough Hole. - Add pin descriptions
Contact 1throughContact 4. - Confirm and resize footprint holes/pads to the Mill-Max recommended land pattern.
Fix metadata and footprint
Update Mount property
Add pin descriptions
Resize footprint pads
Run DRC review
Refine this doc
Ask about this doc
Part Verification Report: Mill-Max 836-22-004-10-001101
Date: 2026-07-15
Scope
Reviewed available project part information for the published part project
836-22-004-10-001101, including MPN, manufacturer, description, project properties, schematic terminals, footprint, and datasheet/source data. The Datasheet URL was updated from the Mill-Max product page to the official Mill-Max catalog PDF.Sources Checked
- Official Mill-Max series catalog PDF: https://www.mill-max.com/sites/default/files/external/catalog/2018-07/004-022.pdf
- Official Mill-Max product page previously set on the project
- Distributor cross-check data from Mouser and Digi-Key search results
- Current Flux schematic and PCB footprint data
- Independent reviewer cross-check
Current Project Metadata
Table
| Field | Current value | Assessment |
|---|---|---|
| Manufacturer Part Number | 836-22-004-10-001101 | Matches Mill-Max part number |
| Manufacturer Name | Mill-Max | Correct |
| Part Type | Connector | Correct |
| Designator Prefix | J | Appropriate for connector |
| Datasheet URL | https://www.mill-max.com/sites/default/files/external/catalog/2018-07/004-022.pdf | Updated to official Mill-Max PDF |
| Mount | Wire | Mismatch: part is through-hole PCB mount, not wire mount |
| Description | 4-position 2 mm pitch spring-loaded connector with current/voltage/contact-resistance/travel/cycle specs | Broadly matches source data |
Key Datasheet / Source Specs
Table
| Parameter | Verified value |
|---|---|
| Series | Mill-Max 836 spring-loaded pogo-pin header strip |
| Connector type | Spring-loaded / pogo-pin connector, vertical PCB mount |
| Positions | 4 |
| Rows | Single row |
| Pitch | 0.079 in / 2.00 mm nominal |
| Mounting | Through-hole solder mount |
| Current rating | 2 A continuous per contact; 3 A peak per contact |
| Voltage rating | 100 Vrms / 150 VDC |
| Contact resistance | 20 mΩ max |
| Insulation resistance | 10 GΩ min / 10,000 MΩ min |
| Dielectric strength | 700 Vrms min |
| Working travel | 0.0275 in / 0.70 mm nominal |
| Maximum travel | 0.055 in / 1.40 mm |
| Initial uncompressed height | 0.295 in / ~7.5 mm |
| Cycle life | Up to 1,000,000 cycles |
| Contact finish | Gold; cross-source details indicate 20 µin Au over 100 µin Ni for shell/contact and 10 µin Au on inner spring |
| Pin/contact material | Brass alloy cross-source |
Schematic Symbol Check
Current symbol representation uses four separate
Terminal components:Table
| Terminal | Pin Number | Current Pin Type | Current Pin Description | Assessment |
|---|---|---|---|---|
Terminal 1 | 1 | Unspecified | Not set | Pin count/number is correct; passive/contact description recommended |
Terminal 2 | 2 | Unspecified | Not set | Pin count/number is correct; passive/contact description recommended |
Terminal 3 | 3 | Unspecified | Not set | Pin count/number is correct; passive/contact description recommended |
Terminal 4 | 4 | Unspecified | Not set | Pin count/number is correct; passive/contact description recommended |
Assessment: the four-terminal schematic symbol is correct for a 4-position connector. The symbol lacks descriptive contact labels and uses
Unspecified pin type. For a passive connector, this is not electrically wrong, but Passive pin type and pin descriptions such as Contact 1 through Contact 4 would improve ERC clarity and part quality.Footprint Check
Current embedded footprint data:
Table
| Feature | Current footprint | Assessment |
|---|---|---|
| Pad count | 4 through-hole pads | Correct |
| Row layout | 1 row | Correct |
| Pad centers | x = 0, 2, 4, 6 mm | Correct 2.00 mm pitch |
| Pad 1 shape | Rectangular | Acceptable orientation marker |
| Pads 2-4 shape | Circular | Acceptable |
| Drill | 0.75 mm | Potential mismatch/risk; likely smaller than manufacturer recommendation |
| Pad size | 1.15 mm diameter/width | Potential mismatch/risk; likely smaller than manufacturer recommendation |
| Annular ring | ~0.20 mm with 0.75 mm drill | Manufacturable in many processes but small for a mechanical connector |
| Fab outline | -1 to 7 mm by -1 to 1 mm | Plausible 8 mm × 2 mm envelope |
| Courtyard | -1.25 to 7.25 mm by -1.25 to 1.25 mm | Plausible but only captures board-level body envelope, not vertical spring/mating clearance |
| 3D model | Present | Good |
The pin count and 2.00 mm pitch are correct. The main footprint risk is the through-hole land pattern: independent cross-check found likely Mill-Max drawing values around 0.84 mm finished PTH and 1.68 mm pad/land diameter. The current 0.75 mm drill and 1.15 mm pad are therefore likely undersized versus the manufacturer-recommended footprint, although the 0.75 mm hole may still physically clear an approximately 0.56 mm tail depending on plating and fabrication tolerance.
Mismatches / Risks Flagged
- Datasheet URL: fixed. The project now points to the official Mill-Max catalog PDF rather than the product page.
- Mount property: current value is
Wire; this should beThrough Holefor this PCB solder-mount connector. - Footprint pad/drill size: current 0.75 mm drill and 1.15 mm pad are likely smaller than the manufacturer drawing recommendation. Recommended review target: about 0.84 mm finished PTH and 1.68 mm pad diameter, pending direct confirmation from the official drawing.
- Pin descriptions: not populated. Recommended descriptions:
Contact 1,Contact 2,Contact 3,Contact 4. - Pin type: currently
Unspecified;Passivewould be better if supported by Flux for these connector terminals. - Mechanical keepout: courtyard does not document vertical mating/compression clearance. The part has ~7.5 mm initial height, 0.70 mm working travel, and 1.40 mm maximum travel, so assembly-level mating height should be checked separately.
Recommended Follow-Up Fixes
- Change project/property metadata
MountfromWiretoThrough Hole. - Update schematic terminal properties with passive/contact descriptions.
- Confirm the exact Mill-Max recommended land pattern from the catalog drawing, then resize pads/drills if the 0.84 mm / 1.68 mm values are confirmed.
- Add a mechanical note or property documenting initial height, working travel, and maximum travel for mating stack-up checks.
Scope
Sources Checked
Current Project Metadata
Key Datasheet / Source Specs
Schematic Symbol Check
Footprint Check
Mismatches / Risks Flagged
Recommended Follow-Up Fixes
