The 0.156" (3.96mm) pitch is the defining footprint dimension — wide enough to accommodate 18-24 AWG wire with standard crimp tooling, and a match for the SL-156 header pin pattern.
Locking Ramp and Polarizing Key — Field-Ready Retention
The locking ramp engages audibly when the housing is fully seated onto the mating header, giving a clear tactile and audible confirmation of a complete mate.
This housing ships empty. The mating crimp sockets (female contacts) must be ordered separately — a detail that trips up first-time buyers who expect a complete connector. The SL-156 series uses standard crimp terminals; verify the wire gauge range and plating (tin vs. gold) against your application's current and cycle-life requirements before placing the full order.
The polyamide material carries a natural (unpigmented) colour, typical of standard-grade nylon used in non-UV-exposed internal connections.