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65781-050

65781-050 Dubox 28-Pin 2.54mm Receptacle

MPN65781-050
Active

Amphenol ICC (FCI) Dubox™ series 65781-050, 28-position dual-row board-to-board receptacle, 0.100" (2.54 mm) pitch, through-hole solder termination, tin-plated square socket contacts, 100.0 µin mating / 30.0 µin post thickness, 0.335" insulation height, UL94 V-0 glass-filled polyester housing, bulk pack.

$2.0243Ref. price · indicative, final on quote
Amphenol 65781-050 datasheet (PDF)
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 China distributor & sourcing agent· Listing updated Aug 2026

Specifications

65781-050 key specifications
ParameterValue
SeriesDubox™
TypeFemale Socket
MountingThrough Hole
Connector typeReceptacle
Fastening typePush-Pull
Contact materialBrass
Insulation colorBlack
Insulation height0.335\" (8.51mm)
Insulation materialPolyester, Glass Filled
Material flammability ratingUL94 V-0
StyleBoard to Board
PackageBulk

All specifications

65781-050 additional specifications
ParameterValue
TerminationSolder
Contact shapeSquare
Rows2
Pitch0.100\" (2.54mm)
Positions28
Row spacing - mating0.100\" (2.54mm)
Contact finish - postTin
Contact length - post0.140\" (3.56mm)
Contact finish - matingTin
Contact finish thickness - post30.0µin (0.76µm)
Contact finish thickness - mating100.0µin (2.54µm)

Product details

28-Position Dual-Row Footprint — 0.100" Pitch

The through-hole solder tails extend 0.140" (3.56 mm) below the insulator — enough for a standard 0.062" PCB with room for the solder fillet.

Tin-Plated Contacts — 100.0 µin Mating Surface

Post finish is 30.0 µin tin, standard for solder joint reliability.

No official second source or pin-compatible replacement is listed, so the 65781-050 is the direct line item for the 28-position Dubox receptacle.

Housing and Compliance — UL94 V-0

The insulator is glass-filled polyester rated UL94 V-0 — the highest flame-retardant grade for connectors inside enclosed equipment.

Frequently asked questions

What is the mating connector for 65781-050?

The specific mating part number depends on your board-to-board stack height and pin length; look for a Dubox or compatible 28-position header with matching pitch and row spacing.

What is the insulation height of 65781-050?

The insulation height is 0.335" (8.51 mm). This dimension, combined with the mating header's height, determines the total board-to-board stack height.