Skip to main content
Molex 430451800

Molex Micro-Fit 3.0 430451800, 18-Pin Header, 8 A, 600 V

MPN430451800
Active

Molex Micro-Fit 3.0 43045 header, 18-position dual-row, 0.118" (3.00 mm) pitch, right-angle through-hole, male pin, tin-plated, locking ramp, board lock, 8 A per circuit, 600 V.

$5.44Ref. 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 supplier — new & surplus connector stock· Listing updated Jul 2026

Specifications

430451800 key specifications
ParameterValue
SeriesMicro-Fit 3.0 43045
TypeMale Pin
MountingThrough Hole, Right Angle
Connector typeHeader
Fastening typeLocking Ramp
Voltage rating600V
Current rating8A
Operating temperature-40°C ~ 105°C
Contact materialBrass Alloy
Insulation colorBlack
Insulation height0.290\" (7.37mm)
Insulation materialLiquid Crystal Polymer (LCP), Glass Filled

All specifications

430451800 additional specifications
ParameterValue
Material flammability ratingUL94 V-0
StyleBoard to Cable/Wire
PackageTray
FeaturesBoard Lock
ShroudingShrouded - 4 Wall
TerminationSolder
ApplicationsAutomotive, General Purpose, Industrial, Medical, Telecommunications
Contact shapeSquare
Rows2
Pitch0.118\" (3.00mm)
Positions18
Row spacing - mating0.118\" (3.00mm)
Contact finish - postTin
Contact length - post0.125\" (3.18mm)
Contact finish - matingTin
Contact finish thickness - mating100.0µin (2.54µm)

Product details

Product Introduction

The Molex 430451800 is an 18-circuit, dual-row header from the Micro-Fit 3.0 43045 series, designed for board-to-wire power interconnect in harness assemblies. The tin-plated contacts are rated 8 A per circuit at 600 V, with a UL94 V-0 liquid crystal polymer housing that handles -40°C to 105°C operating temperatures. Typical applications include automotive, industrial, medical, and telecommunications equipment where a reliable, mid-current wire-to-board connection is needed.

The 3.00 mm pitch is standard for the Micro-Fit 3.0 family, meaning the board footprint matches the receptacle side exactly — no layout surprises.

Frequently asked questions

What is the pitch of Molex 430451800?

The pitch is 0.118" (3.00 mm), which is standard for the Micro-Fit 3.0 family and matches the receptacle footprint exactly.

What is the current rating for 430451800?

The current rating is 8 A per circuit at 600 V, though derating applies above 25°C ambient depending on the number of circuits powered and enclosure airflow.

Is 430451800 RoHS compliant?

Yes, it is ROHS3 compliant, as listed in the lifecycle record.

What is the mating connector for 430451800?

It mates with the matching Micro-Fit 3.0 receptacle housing (sold separately), which accepts 20-24 AWG wire with the appropriate crimp terminal.