Board-to-wire header for 3.96mm pitch harnesses
The 1-640445-2: It is a through-hole, solder-terminated header with a shrouded-1 wall and a friction lock fastening type, giving the mating housing a positive click that resists vibration. Rated at 600VAC and -55°C to 105°C, with a UL94 V-0 glass-filled thermoplastic housing, it suits general-purpose and industrial environments where flame rating and temperature range matter.
Pitch, positions, and locking for harness fit
The 0.156" (3.96mm) pitch is the key dimension for PCB footprint layout and for selecting the mating MTA-156 receptacle housing and crimp terminals.