38-Position Right-Angle Header with Board Lock
The 9-1438789-2 is a 38-position, 2-row header from TE's Multi-Lock series, designed for board-to-cable/wire applications. It uses a right-angle through-hole mounting orientation, which places the mating face parallel to the PCB — useful for cable routing along the board edge in space-constrained enclosures. The header is fully shrouded with four walls, protecting the rectangular tab contacts from damage and providing polarization to prevent mis-mating with the cable-side receptacle. Integrated board locks anchor the header to the PCB during the solder process and resist shear forces from the cable harness during service — a detail that matters when the harness is routed through a moving assembly or near a service panel.
Tin-Plated Contacts and Current Rating
Both the mating and post contact finishes are tin, which is standard for cost-sensitive, moderate-cycle applications. The current rating is listed as 'Varies by Wire Gauge', meaning the ampacity is limited by the wire size crimped into the mating terminal, not by the header contact itself.