Pitch and position count drive the board fit
The 640454-6: Single-row, 6 circuits loaded all positions: the pinout is straightforward, and the mating half is a 6-way MTA-100 wire housing or IDC connector.
Tin contacts suit low-cycle, cost-sensitive builds
Tin-on-tin mating interface (contact finish on both pin and post) is rated for a lower number of mating cycles than gold — expect reliable performance in applications where the connector is mated a few times over the product life, not in field-service hot-swap duty. Current rating is listed as 'varies by wire gauge' because the limiting factor is the wire temperature rise, not the contact itself; in a typical 22-24 AWG circuit the practical limit is around 5 A per contact.
Shrouded one-wall alignment
The single-wall shroud guides the mating receptacle into alignment and protects the pins from bending during blind mating — common in board-to-cable harnesses where the wire side is assembled by hand.
Sourcing and lifecycle status
ROHS3 compliant, UL94 V-0 rated housing — meets the flame and environmental requirements for equipment inside an enclosure.