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Molex 430451219

Molex Micro-Fit 3.0 430451219, 12-Pos Header, 8 A

MPN430451219
Active

Molex Micro-Fit 3.0 43045 series, 430451219, Board to Cable/Wire header, 12 circuits, 2 rows, 3.00 mm pitch, SMT, gold mating contacts, 8 A, 600 V, locking ramp, -40°C to 105°C, UL94 V-0, ROHS3 Compliant.

$5.54Ref. price · indicative, final on quote
RoHSROHS3 Compliant
SeriesMicro-Fit 3.0 43045
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 Jul 2026

Specifications

430451219 key specifications
ParameterValue
SeriesMicro-Fit 3.0 43045
TypeMale Pin
MountingSurface Mount
Connector typeHeader
Fastening typeLocking Ramp
Voltage rating600V
Current rating8A
Operating temperature-40°C ~ 105°C
Contact materialBrass
Insulation colorBlack
Insulation height0.390\" (9.91mm)
Insulation materialLiquid Crystal Polymer (LCP), Glass Filled

All specifications

430451219 additional specifications
ParameterValue
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, Medical, Telecommunications
Contact shapeSquare
Rows2
Pitch0.118\" (3.00mm)
Positions12
Row spacing - mating0.118\" (3.00mm)
Contact finish - postTin
Contact finish - matingGold
Contact finish thickness - post100.0µin (2.54µm)
Contact finish thickness - mating15.0µin (0.38µm)

Product details

The Molex 430451219 is a 12-circuit, dual-row header from the Micro-Fit 3.0 43045 series, designed for board-to-wire power and signal interconnects in automotive, industrial, medical, and telecom equipment. Surface-mount termination with shrouded 4-wall housing and a locking ramp — the ramp gives a positive tactile lock against vibration, standard for harness applications where the connection sees movement.

8 A per circuit is the headline current, and it's real — the contact beam and housing are sized for that at the rated temperature rise. Tin on the solder tail (100.0 µin) is standard for the SMT reflow joint.

Frequently asked questions

Does 430451219 have a locking ramp?

Yes, the 430451219 uses a locking ramp fastening type, which provides a positive tactile lock against vibration in harness applications.