Rated at 600VAC, this header handles line-voltage-level signals or low-power distribution inside an enclosure.
This unshrouded header accepts the MTA-156 receptacle housing (e.g., 640441-5 for 5 positions) with the appropriate crimp socket contacts. The square male pins (0.045" square typical for MTA-156) provide reliable contact retention in the receptacle.
How this header compares to a shrouded sibling
Compared to the 1-1871673-2 (a 4-position, 2-row, shrouded header with board lock and detent lock), the 644749-5 is unshrouded, single-row, and lacks polarization features. Choose the 644749-5 for lower-cost, single-row power/signal connections where mis-mating protection is not critical.