Connector Part Review and Datasheet Update

adrian95

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 review the connector metadata, confirm the datasheet URL, then compare the symbol, footprint, and pin descriptions against the official Hirose documentation and report any mismatches.

flux

Completed the part review and cross-check. The connector identity, 100-pin schematic symbol, and 100-pad 0.4 mm SMT footprint are broadly consistent with Hirose’s official DF40C-100DS-0.4V(51) information; the Datasheet URL was already set, so I did not overwrite it.
Open items flagged:
  • Package metadata is incomplete/weak.
  • BOM is empty for this part project.
  • Datasheet property points to an uploaded PDF rather than the official Hirose URL.
  • Pin descriptions are generic numbered terminals, which is expected for this connector.
  • Layout tree shows a unit/display anomaly, but the embedded KiCad footprint dimensions look correct.
Full review saved in the project file: part-review-df40c-100ds-0p4v51.
Fix metadata and checks
Add official URL
Improve package metadata
Rerun part review
Verify footprint geometry
Sign up to send

Refine this doc
Ask about this doc
Part Review: Hirose DF40C-100DS-0.4V(51)
Reviewed project metadata
Because a Datasheet URL was already set, I did not overwrite it. I also located the official Hirose product page and official document URLs for cross-checking.
Official Hirose references
Key datasheet / official page specs

Table

SpecValue
SeriesDF40
Connector styleBoard-to-board / board-to-FPC connector
Connector typeDouble-row receptacle, DS
ConfigurationC = without metal fittings
Positions100
Rows2
Contact pitch0.4 mm
MountingSMT vertical / straight
Stacking height1.5 mm for this receptacle variant
Packaging code(51), embossed tape; catalog indicates 5,000 pcs/reel
CL No.684-4033-4-51 / CL0684-4033-4-51
Current ratingCatalog extraction: 0.3 A
Voltage ratingCatalog extraction: 30 V AC/DC; official product-page scrape reported 50 V AC/DC, so verify against the latest Hirose drawing/spec sheet before using this as a design limit
Operating temperatureCatalog extraction: -35°C to +85°C; official product-page scrape reported -55°C to +85°C, so verify against the latest Hirose drawing/spec sheet before using this as a design limit
Insulation resistance50 MΩ min @ 100 V DC
Withstand voltage100 V AC for 1 minute
Contact resistance90 mΩ max
RoHSYes
PolarizationCatalog notes connector is not polarized
Mechanical / footprint specs from catalog extraction
For DF40C-100DS-0.4V(51):
  • A = 22.6 mm
  • B = 19.6 mm
  • C = 3.2 mm
  • D = 1.45 mm
  • Drawing callouts include 3.38 ±0.2 mm, 2.88 ±0.2 mm, P = 0.4 ±0.05 mm, and terminal/contact width 0.12 ±0.02 mm.
  • Recommended PCB mounting pattern includes B = 19.6 ±0.02 mm, P = 0.4 ±0.02 mm, pad width 0.2 ±0.02 mm, 3.78 +0.05/0 mm, 2.38 0/-0.05 mm, and 1.5 mm max keepout/feature note.
  • Catalog note: do not route conductive traces through the indicated restricted areas.
Symbol review
Observed schematic symbol:
  • 100 Terminal components are present.
  • Pin Number properties cover 1 through 100 with no missing numbers observed.
  • Odd-numbered pins are positioned on the left side and even-numbered pins on the right side, which is a reasonable generic double-row connector symbol convention.
  • Pin Type is set to Unspecified for all terminals.
  • No per-pin signal names or functional descriptions are present.
Assessment:
  • Pin count matches the datasheet: PASS.
  • Generic terminal-only symbol is appropriate for this connector because the datasheet does not assign electrical functions to the contacts: PASS.
  • Pin descriptions are minimal. This is not an electrical mismatch, but the part could be improved by adding a generic Pin Description such as Contact 1 ... Contact 100 if desired: WARNING / enhancement.
Footprint review
Observed footprint/layout:
  • Layout node tree contains 100 pad nodes plus footprint containers and silkscreen/fab/text nodes.
  • Top-side outline/fab/silk geometry shown in the flat layout spans approximately 22.6 mm horizontally and includes body outlines consistent with the A = 22.6 mm and 2.88 mm / 3.38 mm class drawing dimensions.
  • The layout inspection returned pad nodes by designator, but did not expose detailed pad geometry dimensions/coordinates in the available output, so pad width, pad length, exact pitch, row spacing, and restricted routing areas could not be fully verified from tool output.
Assessment:
  • Pad count matches the datasheet: PASS.
  • Overall body outline appears consistent with the datasheet dimensions: PASS, limited confidence.
  • Exact land pattern geometry could not be fully cross-checked from the available inspection output: NEEDS MANUAL/DETAILED FOOTPRINT CHECK.
Mismatches / issues flagged
  1. No Datasheet URL issue: the part already had a Datasheet URL set, so no property update was required.
  2. Official source URL not stored: the stored Datasheet URL points to a Flux/GCS uploaded PDF rather than the official Hirose document URL. This is acceptable if the uploaded PDF is the correct Hirose datasheet, but the official Hirose spec sheet/catalog links are listed above for traceability.
  3. Package / case metadata appears absent or not explicitly set in project properties. Suggested value: SMT vertical board-to-board receptacle, 100-position, 0.4 mm pitch, DF40C 1.5 mm stacking-height series.
  4. Electrical/mechanical rating properties such as current rating, voltage rating, operating temperature, connector pitch, positions, rows, and connector gender/type are not explicitly stored as structured properties. Suggested to add these for library quality.
  5. Pin descriptions are not populated; all pins are Unspecified. This is acceptable for a generic connector, but per-contact descriptions would improve symbol clarity.
  6. Footprint exact pad geometry could not be completely verified from the available layout output. Confirm pad width 0.2 mm, 0.4 mm pitch, B = 19.6 mm span, row spacing/land length, and no-route restricted areas against the official 2D drawing before release.
  7. Rating discrepancy between extracted sources: the catalog extraction showed 30 V AC/DC and -35°C to +85°C, while the official product-page scrape reported 50 V AC/DC and -55°C to +85°C. Treat the current Hirose official product page/spec sheet/drawing as authoritative and verify manually before assigning structured ratings.
Consider adding or confirming these properties:

  • Reviewed project metadata

  • Official Hirose references

  • Key datasheet / official page specs

  • Mechanical / footprint specs from catalog extraction

  • Symbol review

  • Footprint review

  • Mismatches / issues flagged

  • Recommended follow-up property additions

Documents

  • Part Review: Hirose DF40C-100DS-0.4V(51)

  • Part Review: DF40C-100DS-0.4V(51)

Assets

DF40C-100DS-0.4V(51)-thumb.png

DF40C-100DS-0.4V(51)-thumb.png

DF40C-100DS-0.4V(51)-thumbThumbnail
kicad_mod

DF40C-100DS-0.4V_51_

DF40C100DS04V51.kicad_modFootprint
DF40C-100DS-0.4V_51_

DF40C-100DS-0.4V_51_

DF40C-100DS-0.4V_51_ Symbol.svgDefault
stp

DF40C-100DS-0.4V_51_

DF40C-100DS-0.4V_51_.stp3D Model

DF40C-100DS-0.4V(51)

DF40C-100DS-0.4V(51) thumbnail
100 Position Connector Receptacle, Center Strip Contacts Surface Mount Gold The DF40C-100DS-0.4V(51) is a board-to-board and board-to-FPC receptacle connector manufactured by Hirose Electric. It belongs to the DF40 series, a family of fine-pitch stacking connectors intended for compact, high-density interconnect applications such as mobile devices, cameras, wearables, and other space-constrained electronics. The connector functions as the receptacle (socket) half of a mating pair, designed to stack with a corresponding DF40 plug header to join two printed circuit boards, or a printed circuit board and a flexible printed circuit, in a low-profile vertical arrangement. This particular part number represents the full-position, low-profile variant within the series, configured without a reinforcing metal fitting and without a locating boss or mechanical holddown feature, meaning it relies on the contact array itself rather than additional structural hardware for mechanical retention during reflow and handling. The connector is supplied in straight, surface-mount form and is non-polarized, so it can be inserted in either orientation relative to its mating counterpart. Contacts are arranged in parallel rows along the connector body, with gold plating in the contact mating area to ensure reliable signal continuity and resistance to oxidation over repeated use. The series is positioned by Hirose as a general-purpose, high-speed-capable interconnect, suitable for a range of differential and single-ended signaling standards used in consumer and industrial electronics, with the broader DF40 family supporting interfaces such as USB, MIPI, SATA, and PCIe. Its low stacking height and fine contact pitch make it well suited to applications where board-to-board spacing must be minimized, such as camera modules, display modules, or stacked daughterboard architectures in handheld and wearable products. The connector is packaged on embossed carrier tape for automated pick-and-place assembly, and its construction is compliant with RoHS material restrictions. Mechanically, the connector body is built to support repeated mating cycles typical of consumer electronics assembly and rework, while maintaining stable electrical contact under vibration and thermal cycling across its rated environmental range. As a stacking-style connector rather than a card-edge or cable-mount type, it is intended to be soldered directly to a host PCB pad pattern, with the mating plug soldered to the corresponding board or FPC, allowing the two assemblies to be joined and separated as needed during manufacturing, test, or service operations.
Spec Sheet Identification
Part Number: DF40C-100DS-0.4V(51) Series: DF40 Variant: "C" type — without reinforcing metal fitting
Connector Type / Configuration
Type: Receptacle (socket), board-to-board / board-to-FPC Gender: Female Orientation: Straight Row Arrangement: Dual row Polarization: Non-polarized Locking/Retention Feature: None (no metal holddown or locating boss)
Electrical Ratings
Current Rating: Low-current signal class Voltage Rating: Standard signal-level rating typical of fine-pitch board-to-board connectors Applicable High-Speed Protocols: USB, MIPI, SATA, PCIe (series capability) Transmission Rate: High-speed, multi-gigabit class (series capability)
Mechanical Specifications
Contact Pitch: Fine pitch Mounting Pitch: Matches contact pitch Stacking/Mated Height: Low-profile Mounting Method: Surface mount technology (SMT) Mating Cycles: Rated for repeated mate/unmate cycles typical of consumer electronics rework
Contact & Material Properties
Contact Material: Phosphor bronze Contact Plating (Mating Area): Gold Insulator Color: Black Insulator Material: High-temperature engineering resin suitable for SMT reflow
Environmental Ratings
Operating Temperature Range: Extended consumer/industrial range RoHS Compliance: Yes
Packaging
Packaging Format: Embossed carrier tape, reel format Packaging Code Meaning: Suffix denotes embossed tape packaging at a standard reel quantity
Mating Compatibility
Mates With: Corresponding DF40 series plug/header connector Application Note: Intended for mezzanine-style stacking between two PCBs or between a PCB and FPC
#DF40 #Hirose #HiroseElectric #BoardToBoard #BoardToFPC #StackingConnector #CommonPartsLibrary #Connector #SMTConnector #FinePitchConnector #MezzanineConnector #ElectronicComponents #PCBDesign #HardwareEngineering #ConnectorDatasheet #EngineeringSpec #ConsumerElectronics #HighSpeedConnector #RoHSCompliant #ComponentLibrary

Properties

DF40C-100DS-0.4V(51)

Hirose

Connectors

hirose.com/en/product/document?clcode=&productname=&series=DF40&documenttype=Catalog&lang=en&documentid=en_DF40_CAT

J

parametric-v1

Pricing & Availability

See prices from popular manufacturers for your project.

Controls