SL Single-Row Crimp Housing, 12 Circuits
The Molex 50-57-9512 is a 12-circuit, single-row crimp housing from the SL (Stackable Linear) interconnect family. The SL series is a widely used modular system in low-to-medium power harnesses inside consumer electronics, appliances, and automotive interior applications where a compact, keyed connector is needed.
Terminal Compatibility and Harness Assembly
This housing accepts Molex SL-series crimp terminals sized for 22-30 AWG wire. The terminal family includes the 70066, 70058, and 70246 series — the specific part depends on wire gauge and plating (tin vs gold). The single-row, 12-circuit layout means each cavity is individually polarized, preventing terminal back-out when the mating header is inserted. The primary latch on the housing locks with the mating header for a positive hold; a separate TPA (terminal position assurance) retainer is available for applications requiring secondary lock verification.