The Molex 0760151403 is a 56-position header from the GbX I-Trac 76015 series, designed as a high-density backplane, midplane, or orthogonal interconnect. It carries 56 signal positions arranged in 7 rows across 4 columns on a tight 0.073" (1.85mm) pitch — a grid density that suits large-scale telecom or data-comm backplanes where routing channels are at a premium. The connector style is I-Trac, a differential-pair-optimised architecture that keeps signal skew predictable across the backplane. Termination is press-fit into plated through-holes — no solder, which means the assembly is rework-friendly and avoids thermal stress on the backplane.
The 0.073" pitch sets the board footprint — each column of 7 contacts occupies a narrow strip, so the board designer must route traces between the press-fit tails at this density. The 120V voltage rating is typical for backplane signal levels; the real constraint is the signal integrity at the differential pair pitch, not the voltage headroom. The 85°C operating temperature covers the ambient inside a forced-air-cooled chassis, but the press-fit interface itself handles the current without a solder-joint failure mode.