Spring retention holds the mating pair together; there is no secondary latch or screw lock, so the connection relies on the spring force for engagement. This is a building-block housing: one position per body. The stackable feature means you can gang multiple 1445715-2 housings side-by-side to create a multi-way connector assembly from single-position modules. That matters when your harness needs a custom position count that no fixed multi-position housing covers — you snap together the exact number of positions you need.
You need to source the Power Series 75 crimp terminals separately. TE's Power Series 75 uses non-gendered contacts, meaning the same terminal goes into both the plug and receptacle housings. No terminal part number is listed on this housing record, so confirm the contact order code from the Power Series 75 terminal datasheet before committing the BOM line.
Stackable Design for Multi-Position Harnesses
The stackable feature is the key differentiator of this housing versus a fixed multi-position body. Each 1445715-2 is a single-position module; you interlock them side-by-side to build a connector block with as many circuits as your harness needs. The spring retention on each module engages with the mating half independently. This approach gives you flexibility in position count but means each module is a separate part to handle on the assembly line — not a single pick-and-place item.