The latch holder fastening provides audible positive retention — the primary latch engages on full mate, but there is no secondary TPA, so terminal back-out prevention relies on the crimp quality and housing fit.
What the tin plating means for reconnect duty
Tin-plated mating contacts are rated for fewer mating cycles than gold — typically 50–100 cycles before fretting corrosion increases contact resistance. For higher-cycle applications, a gold-plated sibling in the MCP series is the better choice.