Board fit and routing density
The 9-146308-0-29: Through-hole right-angle mounting on 0.100" dual-row spacing — the 58 positions fill a 29-column footprint that routes easily on two-layer boards without via fan-out. The unshrouded breakaway design lets the board layout engineer snap off sections to match non-standard circuit counts; the mating contact length of 0.230" provides a generous wipe zone for the receptacle.
