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Hirose Electric Co Ltd DF40GB(3.0)-48DS-0.4V(51) — Board-to-Board Connectors

DF40GB(3.0)-48DS-0.4V(51) – Hirose DF40 0.40mm Pitch

MPNDF40GB(3.0)-48DS-0.4V(51)
Active

Hirose DF40 series, 0.016" (0.40mm) pitch, 48-position receptacle, center strip contacts, 2 rows, gold contact finish, shielded, solder retention, surface mount, 3mm mated stacking height

$1.4700Ref. price · indicative, final on quote
Hirose Electric Co Ltd DF40GB(3.0)-48DS-0.4V(51) datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DF40GB(3.0)-48DS-0.4V(51) specifications
ParameterValue
SeriesDF40
MountingSurface Mount
Connector typeReceptacle, Center Strip Contacts
Height above board0.114\" (2.90mm)
Mated stacking heights3mm
Pitch0.016\" (0.40mm)
PackageTape & Reel (TR) Cut Tape (CT)
FeaturesShielded, Solder Retention
Contact finishGold
Rows2
Positions48
Contact finish thickness2.00µin (0.051µm)

Product details

What this 0.40 mm pitch receptacle does in a mezzanine stack

The DF40GB(3.0)-48DS-0.4V(51): It mates to a corresponding DF40 header to achieve a 3mm mated stacking height, which sets the z-axis clearance between parallel PCBs. The 2-row, center-strip contact layout packs 48 circuits into a narrow footprint, suited for high-density signal routing in compact electronics.

Shielding and solder retention for signal integrity and assembly

An integral shield around the contact area reduces radiated EMI between the two boards, which matters when the connector sits near RF or high-speed digital traces.

Frequently asked questions

What is the stacking height of DF40GB(3.0)-48DS-0.4V(51)?

The mated stacking height is 3mm, measured from the top of the header's mounting surface to the bottom of the receptacle's mounting surface. This sets the board-to-board clearance in a mezzanine stack.

Is DF40GB(3.0)-48DS-0.4V(51) shielded?

Yes, the receptacle includes an integral shield that wraps around the contact area to reduce radiated EMI between the two PCBs.

What is the difference between DF40GB(3.0)-48DS-0.4V(51) and DF40C-48DS-0.4V?

Both are 48-position, 0.40mm pitch receptacles in the DF40 series, but the DF40GB variant specifies a 3mm stacking height and includes shielding and solder retention features. The DF40C variant may have a different stacking height or omit the shield — check the respective datasheets for the exact mechanical and electrical differences.

What is the pitch of DF40GB(3.0)-48DS-0.4V(51)?

The contact pitch is 0.016" (0.40mm), which is the center-to-center spacing between adjacent contacts in a row.