MR30PW-FB Part Review
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MR30PW-FB Part Review
Date: 2026-07-20 Reviewed available project metadata, schematic symbol terminals, PCB footprint geometry, and public documentation for the p...
Reviewed the MR30PW-FB part and updated the Datasheet URL to the direct TME MR30PW-FB PDF. I created the detailed report here: MR30PW-FB Part Review.
Open items:
- Main contact holes/pads appear undersized: current 1.7 mm drill / 2.55 mm pad vs reference 1.9 mm drill / 3.0 mm pad.
- Symbol exposes mechanical mounting holes as pins 4/5; the connector is only 3 electrical pins.
- Pin types/descriptions are missing or unspecified.
- I filed an internal part-quality report for the footprint/symbol issues.
Suggested next steps:
- Update pads 1–3 to 1.9 mm drill and 3.0 mm pad size.
- Mark MH1/MH2 as mechanical/non-electrical or remove them from the electrical symbol.
- Add pin descriptions and set pins 1–3 to passive.
- Optionally normalize Part Type from
ConnectorstoConnector.
Fix footprint and symbol
Update pad geometry
Fix mechanical pins
Add pin metadata
Run validation checks
Refine this doc
Ask about this doc
MR30PW-FB Part Review
Date: 2026-07-20
Scope
Reviewed available project metadata, schematic symbol terminals, PCB footprint geometry, and public documentation for the published part project
MR30PW-FB.Sources Checked
- Current Flux project metadata and PCB footprint.
- TME product page originally set as the Datasheet URL.
- Direct TME documentation PDF: https://www.tme.com/Document/4a6895c4a2c7eddf355b391fd904cb53/MR30PW-FB.pdf
- AMASS-style specification PDF copy for MR30PW-FB: https://probots.co.in/technical_data/ProbotsDatasheetMR30PW.pdf
- KiCad public footprint
Connector_AMASS:AMASS_MR30PW-FB_1x03_P3.50mm_Horizontal. - AMASS/China-Amass catalog PDF, which includes MR30PW family information but did not expose an exact
MR30PW-FBentry in extracted text.
Datasheet URL Status
The part already had a Datasheet URL, but it pointed to the TME product page rather than a direct documentation PDF. I updated the part project's
Datasheet URL property to the direct TME MR30PW-FB PDF:Current Project Metadata Observed
- Project / MPN:
MR30PW-FB - Manufacturer:
Amass - Description: DC supply socket; female; MR30; 3 pins; PCB/THT; yellow.
- Mount: Through Hole
- Designator Prefix:
J - Part Type:
Connectors - Published as part: yes
- Part UID:
2e2dd022-987e-47cc-a9c3-5a0622176133 - Pads/terminals represented in Flux: 5 total (
1,2,3,MH1,MH2)
Key Datasheet / Public Specs
Table
| Parameter | Value |
|---|---|
| Manufacturer | AMASS / Changzhou Amass Electronics |
| Manufacturer part number | MR30PW-FB |
| Connector type | DC supply connector / socket |
| Gender | Female |
| Series | MR30 |
| Electrical positions | 3 |
| Mounting | PCB, through-hole / THT |
| Orientation | 90 degree / right-angle / horizontal |
| Rated current | 15 A continuous |
| Momentary current | 30 A, from AMASS-style spec sheet |
| Rated voltage | 500 VDC / 0.5 kV |
| Contact resistance | 0.80 mOhm, from AMASS-style spec sheet |
| Contact material | Brass |
| Contact plating | Gold flash / gold plated |
| Insulator/body | PA / polyamide |
| Flammability | UL94 V-0 |
| Mechanical durability | 1000 cycles |
| Operating temperature | -20 C to +120 C |
| Color | Yellow |
| Gross weight | 1.647 g, from TME data |
| Certification noted | CE/UL in AMASS-style spec sheet |
Datasheet / Public Footprint Reference Geometry
TME/KiCad documentation gives this footprint geometry:
Table
| Feature | Coordinates | Drill | Pad size / shape |
|---|---|---|---|
| Pin 1 | (0, 0) mm | 1.9 mm | 3.0 x 3.0 mm rectangular / roundrect |
| Pin 2 | (-3.5, 0) mm | 1.9 mm | 3.0 mm circular |
| Pin 3 | (-7, 0) mm | 1.9 mm | 3.0 mm circular |
| Mounting hole | (3, -5) mm | 1.0 mm | 1.4 mm circular |
| Mounting hole | (-10, -5) mm | 1.0 mm | 1.4 mm circular |
Other geometry:
- Electrical pin pitch: 3.5 mm.
- Mounting hole center spacing: 13.0 mm.
- Mounting hole row offset from electrical pin row: 5.0 mm.
- KiCad courtyard roughly: x = -11.7 to 4.7 mm, y = -14.65 to 2.0 mm.
Current Flux Footprint Observed
The embedded footprint asset
MR30PWFB.kicad_mod contains:Table
| Feature | Current Flux footprint | Reference expectation | Status |
|---|---|---|---|
| Pin 1 coordinate | (0, 0) mm | (0, 0) mm | Match |
| Pin 2 coordinate | (-3.5, 0) mm | (-3.5, 0) mm | Match |
| Pin 3 coordinate | (-7, 0) mm | (-7, 0) mm | Match |
| Electrical pin pitch | 3.5 mm | 3.5 mm | Match |
| Pin 1 drill | 1.7 mm | 1.9 mm | Mismatch |
| Pin 2 drill | 1.7 mm | 1.9 mm | Mismatch |
| Pin 3 drill | 1.7 mm | 1.9 mm | Mismatch |
| Pin 1 pad size | 2.55 x 2.55 mm rect | 3.0 x 3.0 mm rect/roundrect | Mismatch |
| Pin 2 pad size | 2.55 mm circular | 3.0 mm circular | Mismatch |
| Pin 3 pad size | 2.55 mm circular | 3.0 mm circular | Mismatch |
| Mounting hole positions | (3, -5), (-10, -5) mm | (3, -5), (-10, -5) mm | Match |
| Mounting hole drill | 1.0 mm | 1.0 mm | Match |
| Mounting hole pad size | 1.5 mm | 1.4 mm | Close / acceptable |
| Courtyard | x approx -12.2 to 5.2, y approx -14.7 to 2.275 mm | x approx -11.7 to 4.7, y approx -14.65 to 2.0 mm | Slightly conservative |
Schematic Symbol / Terminal Review
Current schematic representation uses five terminal components:
1with Pin Number 12with Pin Number 23with Pin Number 3MH1with Pin Number 4MH2with Pin Number 5
All terminals currently have:
Pin Type: Unspecified- no human-readable pin descriptions.
Reference documentation describes MR30PW-FB as a 3-pin electrical connector. The two additional holes are mounting/support holes and should not be presented as normal electrical connector positions.
Recommended metadata if retained as terminals:
- Pins 1-3:
Pin Type = Passive; description such asPower contact 1,Power contact 2,Power contact 3. - MH1/MH2: mark as mechanical / mounting / not electrically connected if the platform supports that representation; otherwise avoid exposing them as normal connector pins 4 and 5.
Mismatches / Risks
- Main contact holes are undersized. Current drill is 1.7 mm, while TME/KiCad reference uses 1.9 mm. This may cause fit or insertion problems after plating and manufacturing tolerance.
- Main contact pads are undersized. Current pads are 2.55 mm, while reference uses 3.0 mm. This reduces annular ring and solder robustness for a 15 A THT power connector.
- Symbol exposes mechanical holes as pins 4 and 5. The connector is a 3-position electrical connector. Mounting holes should be mechanical/non-electrical, not normal connector pins.
- Pin descriptions and types are missing. Pins are currently
Unspecified; they should be marked Passive for electrical contacts and mechanical/non-electrical for mounting holes. - Part Type is plural
Connectors. This is minor, but the more typical normalized type isConnectorif the library taxonomy supports it.
Items That Match
- MPN and manufacturer match public data.
- Description broadly matches public data.
- Through-hole PCB mount and 90-degree orientation are correct.
- Three electrical pin positions and pitch are correct.
- Mounting hole positions and drill diameters are correct.
- Courtyard is acceptable and slightly conservative.
Recommended Fixes
- Change pads 1-3 to 1.9 mm drill and 3.0 mm pad diameter/size.
- Keep mounting holes at 1.0 mm drill; optionally adjust mounting hole pad size from 1.5 mm to 1.4 mm if exact KiCad matching is desired.
- Update symbol terminal metadata so the part is clearly a 3-pin electrical connector, with mounting holes marked as non-electrical/mechanical only.
- Add pin descriptions and set electrical pin types.
- Optionally normalize Part Type from
ConnectorstoConnectorif compatible with Flux taxonomy.
Internal Quality Report
A part quality report was filed for the likely footprint/symbol issue: undersized main contact holes/pads and mechanical holes represented as electrical pins.
Scope
Sources Checked
Datasheet URL Status
Current Project Metadata Observed
Key Datasheet / Public Specs
Datasheet / Public Footprint Reference Geometry
Current Flux Footprint Observed
Schematic Symbol / Terminal Review
Mismatches / Risks
Items That Match
Recommended Fixes
Internal Quality Report
