VHDM-HSD Power Module for Backplane Architectures
The Molex 0740298000 is a 3-position receptacle from the VHDM-HSD 74029 series, configured with female blade sockets in a 3-power contact layout. It is a dedicated power module within the VHDM (Very High Density Metric) interconnect system, designed for backplane applications where a separate power plane needs to be routed through the connector interface rather than through signal pins. The press-fit termination eliminates soldering, which suits high-reliability backplane assemblies where rework access and thermal management are considerations.
Press-Fit Termination and Backplane Fit
Press-fit (compliant pin) termination means this receptacle is intended for insertion into plated through-holes on a backplane without solder. The interference fit of the pin in the barrel creates a gas-tight joint. This is standard for high-layer-count backplanes where the thermal mass of soldering is problematic and where field replacement of a damaged connector is needed — a press-fit connector can be staked out and a new one pressed in without desoldering. The through-hole mounting is the board-side interface; the press-fit tail is the termination method. The connector is loaded into the backplane from the component side, and the compliant section of the tail deforms to grip the plated hole wall.
Environmental and Compliance Profile
This part is RoHS non-compliant. If your BOM requires RoHS conformance, this connector does not meet that requirement and an alternative or exemption documentation would be needed.