Part Information Review and Correction

flux

14:11

Organizing project details.

Analyzing the PCB layout.

Analyzing the schematic.

Searching the project.

Searching for components.

Searching 4 domains.

Searching 3 domains.

Looking for "product description summary for part 1840750-7; identify what the part is" in 1840750-1133141.pdf

Planning datasheet specifics.

Searching the project.

Running multiple web searches.

Found 10 results.

Found 0 results.

Searching for project details.

Searching 3 domains.

Searching for PCB configurations.

Searching 3 domains.

Looking for datasheet details.

Searching fetch_url.

Looking for "TE Connectivity 1840750-7 pin names shield chassis ground mounting tabs 16-pin magjack footprint shield pads" in br-mag-magjack-icm.pdf?_v=1776235098797&docType=BR

Checking product details.

Searching fetch_url.

Looking for "1840750-7 exact part number pinout CH_GND MD1 MD2 MD3 MD4 A_1 A_2 K_1 K_2 shield mounting pad" in br-mag-magjack-icm.pdf?_v=1776235098797&docType=BR

Running multiple web searches.

Examining schematic discrepancies.

I reviewed the current part project against the available project metadata, symbol terminals, and footprint pads.
Summary
  • Datasheet URL is already set, so I did not update it.
  • The part project currently has 16 schematic terminals but the footprint has 18 pads: 16 numbered pads plus 2 extra mount/shield pads. That is the biggest mismatch I found.
  • The symbol metadata is incomplete: all terminals have Pin Type = Unspecified, and I do not see any pin descriptions populated.
  • The project metadata has at least one likely classification problem: Part Type = Optoelectronic Devices does not match a MagJack / RJ45 connector with integrated magnetics.
Current project information

Project metadata

FieldCurrent valueReview
Manufacturer Part Number1840750-7Looks consistent with the project
Manufacturer NameTE ConnectivityNeeds verification; web sources are inconsistent
Datasheet URLPresentNo update needed
Designator PrefixJCorrect for a connector
Part TypeOptoelectronic DevicesLikely incorrect for this part
DescriptionModular Connectors / Ethernet Connectors 1X1 MAG45 GIG 7G61P9 G/G REAR LED PINUnderstandable, but messy and not ideal library metadata
Symbol / terminal audit
The schematic contains 16 terminal components, numbered 1–16. From the current symbol:
  • Pins 1–10 appear to be magnetics / channel pins
  • Pins 11–14 appear to be LED pins
  • Pins 15–16 exist as bare numeric labels
  • No terminal has a Pin Description
  • Every terminal has Pin Type = Unspecified
That kind of incomplete terminal metadata is exactly the sort of issue the part-sync workflow recommends flagging and fixing, especially pin count, pin types, and descriptions. The datasheet should be treated as the source of truth, and the pin count should match exactly, including extra pads when the datasheet counts them.
Footprint audit
The footprint contains:
  • 16 main pads matching the symbol’s numbered electrical pins
  • 2 additional pads inside the mounts container, labeled 17 and 18
That means the footprint has 18 total pads, while the symbol exposes only 16 terminals.
Likely mismatches 1. Symbol-to-footprint pin count mismatch
This is the clearest issue:
  • Symbol: 16 terminals
  • Footprint: 18 pads
If pads 17 and 18 are mechanical shield / chassis / mount tabs and the datasheet treats them as pins, then the symbol is incomplete. The recommended rule for part verification is to make the project pin count match the datasheet exactly, including extra pads when listed.
2. Missing pin metadata
All terminals are currently missing the metadata normally expected in a validated part project:
  • Pin Type
  • Pin Description
The sync guidance explicitly calls for exact pin-number verification plus short pin descriptions and mapped pin types.
3. Poor / ambiguous terminal naming
A few terminal labels look weak for a library-quality part:
  • descriptive names exist for most signal pins
  • but pins 15 and 16 are just numeric labels
  • the label VCC(COMMON_CT_ looks truncated
Those are strong indicators the symbol likely needs cleanup against the datasheet pin table.
4. Part Type likely wrong
Optoelectronic Devices does not fit a 1-port RJ45 MagJack with integrated magnetics. This should more likely be categorized as a Connector. The part-sync guidance specifically says to correct project metadata when the functional category is wrong.
Key specs I could confirm
From the currently linked/discovered distributor metadata, this part appears to be:
  • 1-port RJ45 connector
  • integrated magnetics
  • 10/100/1000 Base-T
  • through-hole
  • rear LED version
  • 8-position contact interface
I’m treating those as provisional because the linked PDF itself did not fully parse in-session, and the distributor/manufacturer attribution across search results is inconsistent.

What I would flag for correction

AreaStatusNotes
Datasheet URLOKAlready present, so no change needed
MPNLikely OK1840750-7
ManufacturerNeeds confirmationCurrent value may be wrong or inherited from a distributor mapping
Part TypeMismatchShould likely be Connector
DescriptionNeeds cleanupRewrite into a concise functional description
Package / Case CodeMissingShould be populated from datasheet
Pin countMismatchSymbol 16 vs footprint 18
Pin descriptionsMissingShould be added for all pins
Pin typesMissingAll currently Unspecified
Terminal namesPartial mismatchAt least one truncated label and two non-descriptive labels
Recommended next step
I can clean this part project up for you by:
  • correcting the project metadata
  • adding or exposing the missing pads 17/18 in the symbol if appropriate
  • assigning Pin Type
  • adding Pin Description
  • fixing truncated or non-descriptive terminal names
If you want, I can do that next.
Clean up mismatches
Verify pads 17-18
Fix metadata fields
4 days

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    Assets

    1840750-7

    1840750-7

    1840750-7 Symbol.svgDefault
    kicad_mod

    1840750-7

    18407507.kicad_modFootprint
    1840750-7-thumb.png

    1840750-7-thumb.png

    1840750-7-thumbThumbnail

    1840750-7

    1840750-7 thumbnail
    • Low profile height, less than .400” off the PCB • High speed capable, from 10/100BT up to 10GBT • Can be used in low profile applications • Can be used in half U height applications • Compatible with up to OCP 3.0 mechanical card requirements • Meets all IEEE 802.3 10/100Base-T thru 10GBase-T electrical requirements including RL, IL, Hi-pot and Common Mode parameters • 100% hi-pot tested in production • Comes with many different LED color combinations and options • 50 micro-inches of gold plated contacts as required by the TIA 1096/FCC 47, Part 68. • Lead-free wave-solder compatible, with some IR reflow compatible designs #CommonPartsLibrary #Connector

    Properties

    1840750-7

    Bel Fuse Inc.

    Connector

    belfuse.com/media/brochures/products/magjack%20ICMs/br-mag-magjack-icm.pdf?_v=1776235098797&docType=BR

    J

    creativecommons.org/licenses/by/4.0/

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