40-Position VHDM-HSD Header for High-Density Backplane Routing
The Molex 746951002 is a 40-position, 5-row VHDM-HSD header from the 74695 series, designed for high-speed differential-pair backplane applications. The shielded construction contains each column pair to control crosstalk at multi-gigabit signalling rates.
Press-Fit Termination and Backplane Deployment
Press-fit termination means this header is installed without solder — the compliant pin is pressed into the backplane via a pneumatic or hydraulic press. This eliminates the thermal stress of wave or reflow soldering and allows individual pin replacement if a contact is damaged. The through-hole mounting provides mechanical retention against the insertion force of the mating receptacle. The 5-row, 10-column grid (40 positions loaded all) gives a dense signal footprint.
