Part Audit Review

A

adrian95

Review all available part information (MPN, package, pin count, description, properties). If no datasheet URL is already set, search the web for the official datasheet and update the part's Datasheet property with the URL. Then cross-check the schematic symbol, footprint, and pin descriptions against the datasheet. Summarize key specs and flag any mismatches.

flux

I’ll audit the part metadata, locate the official Hirose datasheet if needed, update the Datasheet property, then cross-check the symbol, footprint, and pin descriptions against the manufacturer documentation.
Created a project doc

Part Audit Report

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Part Audit Report Scope
Audit of Hirose DF40GL-44DP-0.4V(51), covering project metadata, schematic symbol, footprint, pad mapping, attached assets, and official manufacturer specifications.
Authoritative sources
The project Datasheet URL property was updated to the official Hirose DF40GL catalog.
Key specifications Existing project information
  • Project name: DF40GL-44DP-0.4V(51)
  • Stored MPN: DF40GL-44DP-0.4V_51_
  • Manufacturer: Hirose Electric Co Ltd
  • Designator prefix: J
  • Part UID: 835bf3e1-33dd-41bb-a166-c0a31607d645

flux

Audit complete. I added the official Hirose datasheet URL and documented the full review in Part Audit Report.
Main flags: apparent 1000× footprint scaling issue, malformed MPN parentheses, missing package/pin descriptions, shield pins typed as power inputs, and unsupported 1.29 mm description. The 48-terminal symbol/pad count is otherwise consistent with 44 contacts plus four shield-ground terminals.
Fix metadata and terminals
Investigate footprint scale
Clean footprint labels
Validate pin numbering
Fix all identified issues
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Files

Pins

Symbol

Layout

Preview

27
Pin Number
27
GND__1
Pin Number
G2
2
Pin Number
2
33
Pin Number
33
28
Pin Number
28
8
Pin Number
8
30
Pin Number
30
17
Pin Number
17
9
Pin Number
9
25
Pin Number
25
10
Pin Number
10
19
Pin Number
19
7
Pin Number
7
39
Pin Number
39
31
Pin Number
31
34
Pin Number
34
41
Pin Number
41
22
Pin Number
22
32
Pin Number
32
43
Pin Number
43
23
Pin Number
23
24
Pin Number
24
37
Pin Number
37
6
Pin Number
6
12
Pin Number
12
18
Pin Number
18
38
Pin Number
38
29
Pin Number
29
1
Pin Number
1
11
Pin Number
11
26
Pin Number
26
GND__2
Pin Number
G3
42
Pin Number
42
36
Pin Number
36
GND__3
Pin Number
G4
14
Pin Number
14
15
Pin Number
15
20
Pin Number
20
5
Pin Number
5
21
Pin Number
21
16
Pin Number
16
GND
Pin Number
G1
13
Pin Number
13
4
Pin Number
4
40
Pin Number
40
3
Pin Number
3
35
Pin Number
35
44
Pin Number
44
Part Audit Report
Scope
Audit of Hirose DF40GL-44DP-0.4V(51), covering project metadata, schematic symbol, footprint, pad mapping, attached assets, and official manufacturer specifications.
Authoritative sources
The project Datasheet URL property was updated to the official Hirose DF40GL catalog.
Key specifications

Table

ItemOfficial value
ManufacturerHirose Electric Co., Ltd.
Exact MPNDF40GL-44DP-0.4V(51)
Hirose CL numberCL0684-4412-2-51
TypePlug, straight, double-row SMT, shielded board-to-board / board-to-FPC
Contact positions44 signal/contact positions plus 4 shield-ground solder terminals
Total PCB solder pads48
Pitch0.4 mm
Mated height1.5 mm
Connector body10.82 mm × 2.97 mm × 1.14 mm nominal
Rated current0.35 A
Rated voltage30 V AC/DC
Operating temperature-55 °C to +85 °C
Contact resistance90 mΩ max
Insulation resistance50 MΩ min at 100 VDC
Dielectric withstand100 VAC for 1 minute
Durability30 mating cycles
High-speed ratingPCIe Gen 4, 16.0 Gbps
Mating receptacleDF40GL-44DS-0.4V(51), also reel variant (58)
PlatingGold, 0.05 µm
LockPositive / lever lock
Existing project information
  • Project name: DF40GL-44DP-0.4V(51)
  • Stored MPN: DF40GL-44DP-0.4V_51_
  • Manufacturer: Hirose Electric Co Ltd
  • Designator prefix: J
  • Part UID: 835bf3e1-33dd-41bb-a166-c0a31607d645
  • Footprint asset: HIROSE_DF40GL-44DP-0.4V_51_.kicad_mod
  • 3D asset: DF40GL-44DP-0.4V(51).STEP
  • Symbol terminals: 48 total — pins 1–44 plus G1–G4
  • Footprint pads: 48 total — pads 1–44 plus four ground pads
Cross-check findings
Correct / consistent
  • The symbol and footprint both contain 48 terminals/pads: 44 contact pads and four shield-ground pads.
  • Signal terminals 1–44 are typed Passive, which is suitable for an uncommitted connector.
  • The footprint uses 0.4 mm longitudinal pad pitch when its stored coordinates are interpreted at the apparent imported scale.
  • Nominal signal-land dimensions correspond to approximately 0.23 mm × 0.66 mm, matching the official 0.23 mm land width and expected lead-land length.
  • Four shield lands correspond to approximately 0.87 mm × 0.58 mm and are located at the connector ends, consistent with the official mounting pattern.
  • The attached STEP and KiCad footprint filenames identify the correct MPN.
Mismatches and risks
  1. Critical footprint unit/scale readback: PCB nodes report unit: mm, but signal pads are returned as 0.00023 × 0.00066 mm, pitch as 0.0004 mm, and body graphics around 0.01082 mm. These are exactly 1000× smaller than the required 0.23 × 0.66 mm pads, 0.4 mm pitch, and 10.82 mm body. This strongly indicates a meter-to-millimeter import/display scaling error. The footprint must be visually and dimensionally verified before publication or board use.
  2. MPN formatting mismatch: Stored MPN DF40GL-44DP-0.4V_51_ is not the exact manufacturer ordering code DF40GL-44DP-0.4V(51). Underscores can break sourcing and exact-match searches.
  3. Package property missing: No populated package/case value is exposed. Recommended description: 44-position, 0.4 mm pitch, straight SMT shielded plug; 48 PCB pads including four shield grounds.
  4. Part Type missing: Component review previously flagged the project Part Type. It should be classified as a board-to-board connector / plug.
  5. Pin descriptions missing: Pins 1–44 have only numeric names, with no descriptions. Suitable generic descriptions are Contact 1 through Contact 44; G1–G4 should be described as shield-ground solder terminals.
  6. Shield electrical type: G1–G4 are typed Power In. They are mechanical shield/ground terminals, not power-input pins. Passive is a safer generic ERC type unless the library has a dedicated shield type.
  7. Ground pad naming inconsistency: Footprint pad names are GND, GND__1, GND__2, GND__3, while symbol pin numbers are G1–G4. Mapping may work by terminal association, but explicit G1–G4 pad names would be clearer and less error-prone.
  8. Pin-number orientation cannot be confirmed from the public drawing: Hirose states the connector has no polarity and the reviewed drawing does not define a pin-1 orientation. The 1–44 geometric numbering sequence should not be asserted as manufacturer-defined without Hirose ECAD/continuity data.
  9. Description inconsistency: The project description includes 1.29mm, while the official connector body height is 1.14 mm nominal and the mated stack height is 1.5 mm. The 1.29 mm value is not supported by the reviewed official data.
  10. Duplicate footprint text objects: Pin-number labels 1, 2, 43, and 44 appear duplicated in the footprint tree, which may cause overprinted fabrication/silkscreen text.
  1. Confirm footprint scale with an exact measurement between adjacent pads; it must be 0.400 mm.
  2. Correct the exact MPN formatting.
  3. Populate Part Type, package, and a manufacturer-based description.
  4. Add pin descriptions and change G1–G4 from Power In to Passive/shield semantics.
  5. Resolve G1–G4 pad naming and remove duplicate text labels.
  6. Validate contact numbering using official Hirose ECAD data or a continuity-verified mating pair before release.

  • Scope

  • Authoritative sources

  • Key specifications

  • Existing project information

  • Cross-check findings

  • Correct / consistent

  • Mismatches and risks

  • Recommended remediation order