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Amphenol 77311-424-04LF — Pin Headers

77311-424-04LF Amphenol ICC BERGSTIK® Header 4POS 2.54mm

MPN77311-424-04LF
Active

Amphenol ICC (FCI) BERGSTIK® unshrouded header, 4 circuits, single row, 0.100" (2.54mm) pitch, through-hole solder termination, tin-plated square pins, rated 3A per contact, UL94 V-0 housing.

$0.4800Ref. price · indicative, final on quote
Amphenol 77311-424-04LF datasheet (PDF)
RoHSRoHS Compliant
SeriesBERGSTIK®
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

77311-424-04LF key specifications
ParameterValue
SeriesBERGSTIK®
TypeMale Pin
MountingThrough Hole
Connector typeHeader
Fastening typePush-Pull
Current rating3A per Contact
Operating temperature-65°C~125°C
Contact materialPhosphor Bronze
Insulation colorBlack
Insulation height0.100\" (2.54mm)
Insulation materialThermoplastic
Material flammability ratingUL94 V-0

All specifications

77311-424-04LF additional specifications
ParameterValue
StyleBoard to Board
PackageBulk
ShroudingUnshrouded
TerminationSolder
Contact shapeSquare
Rows1
Pitch0.100\" (2.54mm)
Positions4
Contact finish - postTin
Contact length - post0.114\" (2.90mm)
Overall contact length0.480\" (12.19mm)
Contact finish - matingTin
Contact length - mating0.266\" (6.75mm)
Contact finish thickness - post78.7µin (2.00µm)
Contact finish thickness - mating78.7µin (2.00µm)

Product details

Board-to-Board Header, 4 Positions, 2.54mm Pitch

The 77311-424-04LF: Rated 3A per contact with tin-plated mating surfaces at 78.7µin thickness. Tin is the cost-effective choice for applications with infrequent mating cycles — expect a few dozen cycles before contact resistance begins to rise.

Mating and Termination Check

Unshrouded male pins, square profile, 0.266" (6.75mm) mating length. The 0.114" (2.90mm) solder tail length suits standard 1.6mm PCBs — verify the board thickness and hole diameter before layout.

Frequently asked questions

What is the mating half for 77311-424-04LF?

It mates with any standard 2.54mm pitch female socket or IDC receptacle that accepts a 0.025" square post. Common partners include BERGSTIK II female headers or generic 2.54mm crimp housings with matching pin contacts. Confirm the receptacle's pin spacing and square-post compatibility before ordering.