Single-Position Power Housing in the Z-PACK Hard Metric System
The TE Connectivity 646273-1 is a 1-position receptacle housing from the Z-PACK hard metric series, designed as a power-only module within a backplane interconnect system. The gray through-hole housing mounts to the backplane and mates with the corresponding Z-PACK power header. This is a dedicated power position, not a signal line, intended for distributing bus-level current through the backplane.
What the Single Position Means for the Backplane Layout
With only 1 power position, this housing occupies minimal real estate on the backplane — it slots into a single column of the hard metric grid where a power tap is needed, leaving the remaining columns for signal modules. The through-hole mounting gives it a solid solder joint to the board, handling the mechanical strain from the power contact and any attached cable.