3.96mm pitch, 3-position MTA-156 header with friction lock
The 3-644615-3: This is a 3-position, single-row header from the MTA-156 series, on 0.156" (3.96mm) pitch — the standard spacing for TE's MTA wire-to-board system rated up to 600VAC.
Through-hole termination and board footprint
Overall contact length is 0.700" (17.78mm), with the mating pin 0.450" (11.43mm) long — enough to engage the receptacle contact fully before the housing seats.
RoHS3 compliant. Bulk packaging.
