14-Position MTA-156 Header with Friction Lock
The 1-640388-4: This is a 14-position, single-row, through-hole header from the MTA-156 series. The 0.156" (3.96mm) pitch leaves enough board space for routing wider traces and accommodates 18-22 AWG wire in the mating receptacle without crowding. This lock resists moderate vibration in industrial control panels and general-purpose equipment.
The 0.425" (10.80mm) insulation height above the board gives clearance for components underneath the header body on a densely populated board.
Voltage and Temperature Rating for Industrial Use
Rated 600VAC — this covers most single-phase and three-phase control circuits inside equipment without needing a higher-voltage connector.
ROHS3 compliant. Bulk packaging — the header ships in standard tubes or trays, not tape-and-reel.
Mating Housing Compatibility
This header mates with the MTA-156 receptacle housing (TE part number 1-640456-4 or equivalent). The friction lock engages the ramp on the receptacle shroud — if the lock doesn't click, the housing isn't fully seated.