The 9-103329-0-02: That tin thickness is typical for moderate-duty signal connections—think control logic, sensor inputs, or low-current power distribution inside an enclosure. The UL94 V-0 housing means the thermoplastic body meets the flammability standard for equipment inside a fire-rated enclosure.
RoHS compliant per current directive.
Comparing to a Shrouded Sibling (1394090-1)
If the application needs pin protection and a locking latch, the 1394090-1 is a 6-position shrouded header with a latch holder. It uses a 0.112" (2.85mm) pitch, so it won't drop into the same footprint as the 9-103329-0-02. The 39.4µin tin finish is thinner, but the shroud and latch add mechanical retention for higher-vibration environments. For a simple 2-position signal tap with no locking requirement, the unshrouded 9-103329-0-02 is the lighter, lower-cost choice.