Six-way right-angle header with locking ramp
The 643235-1 is the 6-position member of TE's Universal MATE-N-LOK header line, a single-row board-to-cable/wire connector with a 0.250" (6.35mm) pitch. Tin-plated mating contacts, a through-hole right-angle mount, and a locking ramp fastening type define the mechanical interface — the ramp holds the mated pair without a secondary latch.
What the pitch and locking ramp mean for the fit
The 6.35 mm pitch leaves generous board real estate between adjacent circuits — useful when routing higher-voltage traces or fitting the connector near a board edge where a tighter pitch would crowd the keep-out zone.