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Amphenol 71991-312LF — Female Socket Headers

71991-312LF Amphenol ICC Dubox™ 24-Position Female Socket

MPN71991-312LF
Active

Amphenol ICC (FCI) Dubox™ 71991-312LF — 24-position, dual-row female socket header, 0.100" (2.54 mm) pitch, through-hole solder termination, gold-plated mating contacts, UL94 V-0 blue thermoplastic housing.

$3.2200Ref. price · indicative, final on quote
Amphenol 71991-312LF datasheet (PDF)
RoHSRoHS Compliant
SeriesDubox™
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

71991-312LF key specifications
ParameterValue
SeriesDubox™
TypeFemale Socket
MountingThrough Hole
Connector typeReceptacle, Bottom or Top Entry
Fastening typePush-Pull
Contact materialPhosphor Bronze
Insulation colorBlue
Insulation height0.275\" (6.99mm)
Insulation materialThermoplastic, Glass Filled
Mated stacking heights11.04mm
Material flammability ratingUL94 V-0
StyleBoard to Board

All specifications

71991-312LF additional specifications
ParameterValue
PackageTube
TerminationSolder
ApplicationsAutomotive, General Purpose, Industrial, Telecommunications
Contact shapeSquare
Rows2
Pitch0.100\" (2.54mm)
Positions24
Row spacing - mating0.100\" (2.54mm)
Contact finish - postTin
Contact length - post0.118\" (3.00mm)
Contact finish - matingGold
Contact finish thickness - post78.7µin (2.00µm)
Contact finish thickness - mating30.0µin (0.76µm)

Product details

Board-to-Board Stacking with the Dubox™ 71991-312LF

Contact Plating and Mating Durability

Position Count Variants in the 71991 Series

The 71991 family includes 22-position (71991-311LF), 24-position (this part), 26-position (71991-313LF), and 28-position (71991-314LF) versions — all sharing the same 0.100" pitch, dual-row layout, 11.04 mm stack height, and gold plating. If your BOM calls for one of the adjacent position counts, the mechanical footprint and mating header pitch are identical; only the board space and pin count change.

Frequently asked questions

What is the pitch of the 71991-312LF?

The mating pitch is 0.100" (2.54 mm), with the same 0.100" row spacing. This is the standard 0.100-inch grid that matches most industry pin headers.

Is the 71991-312LF RoHS compliant?

Yes, it is RoHS compliant.

Can I use the 71991-312LF for wire-to-board applications?

No — this is a board-to-board receptacle that mates with a pin header soldered to another PCB. It is not designed for discrete wire termination.

Where can I buy the 71991-312LF?

Sourced to order against your BOM quantity. Availability and current pricing confirmed at quote time — submit an RFQ for this part number.