The Molex 430451212 is a 12-circuit, dual-row header from the Micro-Fit 3.0 43045 series, designed for board-to-cable/wire interconnects. It carries 8 A per circuit at 600 V on a 3.00 mm pitch, with a shrouded 4-wall housing and a locking ramp for positive retention in mated assemblies. The tin-plated mating contacts (100.0 µin) and through-hole kinked-pin termination suit it for automotive, industrial, medical, and telecom harness applications where vibration resistance and a UL94 V-0 flame rating are required.
Molex 430451212 Micro-Fit 3.0 Header, 12 Pos, 8A
MPN430451212
Active
Molex Micro-Fit 3.0 43045 series 430451212, Header, 12-circuit dual-row 3.00mm pitch, Through Hole, Tin-plated, 8A, 600V, Shrouded 4-wall with Locking Ramp.
$2.86Ref. 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
| Parameter | Value |
|---|---|
| Series | Micro-Fit 3.0 43045 |
| Type | Male Pin |
| Mounting | Through Hole |
| Connector type | Header |
| Fastening type | Locking Ramp |
| Voltage rating | 600V |
| Current rating | 8A |
| Operating temperature | -40°C ~ 105°C |
| Contact material | Brass |
| Insulation color | Black |
| Insulation height | 0.390\" (9.91mm) |
| Insulation material | Liquid Crystal Polymer (LCP), Glass Filled |
All specifications
| Parameter | Value |
|---|---|
| Material flammability rating | UL94 V-0 |
| Style | Board to Cable/Wire |
| Package | Tray |
| Features | Board Guide |
| Shrouding | Shrouded - 4 Wall |
| Termination | Kinked Pin, Solder |
| Applications | Automotive, General Purpose, Industrial, Medical, Telecommunications |
| Contact shape | Square |
| Rows | 2 |
| Pitch | 0.118\" (3.00mm) |
| Positions | 12 |
| Row spacing - mating | 0.118\" (3.00mm) |
| Contact finish - post | Tin |
| Contact length - post | 0.125\" (3.18mm) |
| Contact finish - mating | Tin |
| Contact finish thickness - mating | 100.0µin (2.54µm) |
Product details
Frequently asked questions
What is the pinout of Molex 430451212?
The 430451212 is a dual-row header with 12 positions loaded in a 2x6 arrangement on a 3.00 mm pitch. The pinout follows the standard Micro-Fit 3.0 footprint; the mating receptacle housing and crimp terminals define the wire-side circuit assignment.
What is the current rating of Molex 430451212?
The header is rated 8 A per circuit at 600 V, with the current limit set by the temperature rise of the LCP housing material.