The 6.10 mm pitch is wide for a 2-circuit housing — it gives generous creepage for power-level voltages and leaves room for larger-gauge wire in the cavity.
Panel-mount installation and what the locking ramp buys you
That ramp is the primary retention — no secondary latch or screw lock. In a panel-mount application the housing itself is the fixed half; the cable-side plug carries the matching ramp catch.
The 1-350345-0 accepts male pin contacts installed via crimp termination. The housing itself has no contacts — the buyer must source the matching MATE-N-LOK pin terminals separately. This is typical for the series: the housing and terminals are ordered as distinct line items so the assembler can match the wire gauge and plating grade to the application. The single-row cavity arrangement means the crimp terminals insert from the rear and lock into the housing with the standard MATE-N-LOK retention tang.
Active production — no obsolescence concern
No last-time-buy or end-of-life notice is on record. For BOM planning, this is a standard-catalogue part with no lifecycle risk.