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Hirose Electric Co Ltd DF40B(2.0)-12DS-0.4V(58) — Mezzanine & Stacking Connectors

Hirose DF40B(2.0)-12DS-0.4V(58) Receptacle, 12 Pos

MPNDF40B(2.0)-12DS-0.4V(58)
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Hirose DF40 series receptacle, center strip contacts, 12 positions, 0.40mm pitch, dual-row, surface mount, gold contact finish, 2mm mated stacking height, solder retention feature.

$0.8800Ref. price · indicative, final on quote
RoHSROHS3 Compliant
SeriesDF40
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for stock & sourcing questions
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent supplier — new & surplus connector stock· Listing updated Aug 2026

Specifications

DF40B(2.0)-12DS-0.4V(58) specifications
ParameterValue
SeriesDF40
MountingSurface Mount
Connector typeReceptacle, Center Strip Contacts
Height above board0.077\" (1.95mm)
Mated stacking heights2mm
Pitch0.016\" (0.40mm)
PackageTape & Reel (TR) Cut Tape (CT)
FeaturesSolder Retention
Contact finishGold
Rows2
Positions12

Product details

Board-to-Board Mezzanine Fit: 2mm Stack Height at 0.40mm Pitch

The Hirose DF40B(2.0)-12DS-0.4V(58) is a 12-position receptacle from the DF40 series, designed for parallel board stacking at a fixed 2mm mated height. The 0.016" (0.40mm) pitch and dual-row layout pack 12 circuits into a compact footprint — the tight pitch demands careful trace routing on the board, but the 2mm stack height gives enough clearance for mid-board components on the underside of the top PCB.

ROHS3 compliant.

Frequently asked questions

What is the mated stacking height of DF40B(2.0)-12DS-0.4V(58)?

The mated stacking height is 2mm, set by the (2.0) suffix in the order code. This is the fixed z-height between the two parallel PCBs when mated with the corresponding DF40 series header.

Is DF40B(2.0)-12DS-0.4V(58) RoHS compliant?

Yes, it is ROHS3 compliant.

Does DF40B(2.0)-12DS-0.4V(58) have a solder retention feature?

Yes, the connector includes a solder retention feature — board locks that hold the part during reflow and resist shear forces from the mating header.

Is DF40B(2.0)-12DS-0.4V(58) compatible with DF40 series headers?

Yes, it mates with the corresponding DF40 series header of the same position count and stacking height — the 12DS designation indicates a 12-position dual-row receptacle that pairs with the matching 12-position header in the DF40 family.