2.50mm Pitch, 4-Position Plug Housing for Harness Builds
The 1-1903130-2: It's a free-hanging (in-line) housing designed for crimp termination — you bring your own contacts, as the listing notes they are not included. Black housing, push-pull fastening, and the 0.130" (3.30mm) row spacing gives enough room for 20-18 AWG wire with the matching Dynamic D-1200 crimp terminals.
Mating Half and Contact Reality
This plug housing mates with the Dynamic D-1200 receptacle header of the same pitch and row count — look for a 4-position, 2-row, 2.50mm pitch header in the series. The tab-type contacts (male) go into this housing; the mating receptacle uses female socket contacts. Since contacts are not included in the housing order, you'll need to source the crimp terminals separately — TE's part numbering for the D-1200 tab terminal is something like 1-1703532-x (the x varies by plating and wire gauge). The push-pull latch is the primary retention; no secondary lock on this housing, so make sure the terminal locks into the cavity with an audible click during harness assembly.
No obsolescence concern here — it's a current-production part in the Dynamic D-1200 line.