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DF40

Board-to-Board/FPC-to-Board Connector

The DF40 is a board-to-board/fpc-to-board connector from HIROSE ELECTRIC. View the full DF40 datasheet below including key specifications.

DF40 shares its datasheet with DF40C-100DS-0.4V(51), whose page lists every part number it covers.

Official DF40 datasheet (PDF) — the source this page was extracted from.

Manufacturer

HIROSE ELECTRIC

Category

Board-to-Board

DF40 Key Specifications

ParameterValue
ColorBlack
Connector TypeReceptacle, Center Strip Contacts
Connector TypeReceptacle
Contact FinishGold
Contact Finish Thickness2.00µin (0.051µm)
Contact MaterialGold
Contact Pitch400 µm
Contact PlatingGold
Contact Resistance90 mΩ
Contact Voltage Rating (AC)30 V
Contact Voltage Rating (DC)30 V
Current Rating300 mA
Depth3.38 mm
Dielectric MaterialLiquid Crystal Polymer
GenderFemale
Height1.45 mm
Height Above Board0.057" (1.45mm)
Housing ColorBlack
Housing MaterialPolymer
Insulation Resistance50 MΩ
Lead FreeLead Free
Length22.6 mm
Lifecycle StatusProduction (Last Updated: 1 month ago)
Manufacturer Package IdentifierSMT_CONN
Mated Stacking Heights1.5mm
Mated Stacking Heights1.5 mm
Max Current Rating300 mA
Max Operating Temperature85 °C
Max Voltage Rating (AC)30 V
Min Operating Temperature-35 °C
MountSurface Mount
Mounting TypeSurface Mount
Number of Contacts100
Number of Pins100
Number of Positions100
Number of Positions100
Number of Rows2
Number of Rows2
OrientationStraight
PackagingCut Tape
Pitch0.016" (0.40mm)
Pitch400 µm
Plating Thickness50.0126 nm
Radiation HardeningNo
REACH SVHCYes
RoHSCompliant
Row Spacing2.64 mm
Terminal Pitch400 µm
TerminationSMD/SMT
Voltage Rating30 V
Width3.38 mm

DF40 Overview

Part: DF40C-100DS-0.4V(51) — Hirose Electric Co., Ltd.

Type: Board-to-Board/FPC-to-Board Connector

Description: 0.4mm pitch, double-row, straight SMT receptacle connector with 100 positions, 1.5mm stacking height, and gold-plated phosphorous bronze contacts, designed for high-density mounting and supporting USB4 Gen.2 (20Gbps) transmission for 1.5mm height types.

Operating Conditions:

  • Operating temperature: -55 to +85°C
  • Operating humidity range: 20 to 80%

Absolute Maximum Ratings:

  • Max storage temperature: +60°C

Key Specs:

  • Rated Current: 0.3A (0.25A for 120 pos.)
  • Rated Voltage: 50V AC/DC
  • Insulation Resistance: 50MΩ Min. (at 100V DC)
  • Withstanding Voltage: 150V AC for 1 min.
  • Contact Resistance: 90mΩ Max. (at 20mV AC, 1kHz, 1mA)
  • Effective Mating Length: 0.45mm
  • Mating Self Alignment Range: ±0.33mm in Single XY directions

Features:

  • High Density Mounting with 3.38mm depth
  • Wide Stacking Height Variations (1.5, 2.0, 2.5, 3.0, 3.5, 4.0mm)
  • High Contact Reliability with click feeling and lock design
  • Robust Design with Shock Absorbing Ribs
  • Supports USB4 Gen.2 (20Gbps) transmission (H=1.5mm type)
  • Solder Wicking Prevention
  • Splash-Resistant Design Protects Contacts
  • Compliant with RoHS
  • Shielded type available for high-speed signal support and noise prevention

Applications:

Package:

  • Embossed Packaging (5,000pcs per reel for (51) suffix, 1,000pcs per reel for (58) suffix)

Variants on the same datasheet

These parts have exact links to the same datasheet. They are candidates to compare, not verified drop-in replacements; check package, pinout and electrical limits.

Part NumberManufacturerPackage
DF40C-100DS-0.4V(51)HIROSE ELECTRIC—
Data on this page is extracted from publicly available manufacturer datasheets using automated tools including AI. It may contain errors or omissions. Always verify specifications against the official manufacturer datasheet before making design or purchasing decisions. See our Terms of Service. Rights holders can submit a takedown request.

Ask your AI agent about the DF40

Connect SheetsData to Claude, Cursor, Codex or any MCP client and your agent reads this datasheet for you: pinout, limits, register maps and design checks, with the numbers taken from the PDF.

claude mcp add --transport http sheetsdata https://mcp.sheetsdata.com/mcp

Then ask: "Can the DF40 run from my 12 V rail? Check it against the datasheet limits."

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