Skip to main content
Log in
Molex 5054331871 — Pin Headers

Molex 5054331871 Micro-Lock PLUS Header, 18 Pos, 1.25 mm

MPN5054331871
Active

Molex Micro-Lock PLUS 505433 series, 5054331871, 18-position dual-row SMT header, 1.25 mm pitch, shrouded 4-wall, latch holder, tin-plated male pins, -40°C to 105°C, UL94 V-0.

$1.7600Ref. price · indicative, final on quote
Molex 5054331871 datasheet (PDF)
RoHSROHS3 Compliant
SeriesMicro-Lock PLUS 505433
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

5054331871 key specifications
ParameterValue
SeriesMicro-Lock PLUS 505433
TypeMale Pin
MountingSurface Mount
Connector typeHeader
Fastening typeLatch Holder
Voltage rating50VAC/DC
Current ratingVaries by Wire Gauge
Operating temperature-40°C ~ 105°C
Contact materialBrass
Insulation colorBlack
Insulation height0.285\" (7.25mm)
Insulation materialPolyamide (PA), Nylon

All specifications

5054331871 additional specifications
ParameterValue
Mated stacking heights8.6mm
Material flammability ratingUL94 V-0
StyleBoard to Cable/Wire
PackageTape & Reel (TR) Cut Tape (CT)
FeaturesSolder Retention
ShroudingShrouded - 4 Wall
TerminationSolder
ApplicationsAutomotive, General Purpose, Industrial
Contact shapeSquare
Rows2
Pitch0.049\" (1.25mm)
Positions18
Contact finish - postTin
Contact finish - matingTin
Contact finish thickness - post39.4µin (1.00µm)
Contact finish thickness - mating39.4µin (1.00µm)

Product details

The 5054331871 is a dual-row, 18-position SMT header from the Molex Micro-Lock PLUS 505433 series. The shrouded 4-wall design and latch holder fastening give it a locked mate that resists vibration, making it suitable for automotive, general purpose, and industrial applications.

Footprint and stack-up parameters

The 1.25 mm pitch and 8.6 mm mated stack height set the board-to-board clearance and routing density. The 0.285 inch (7.25 mm) insulation height gives the connector body a low profile above the board surface.

ROHS3 compliant. No direct cross-reference or replacement documented within the series.

Frequently asked questions

What is the pitch of the 5054331871 header?

The mating pitch is 0.049 inch (1.25 mm), dual-row, 18 positions total.