The B12B-PADSS-1: Its 2.00 mm pitch and 2.00 mm row spacing set the PCB footprint for signal-level harnesses. The 3 A ceiling keeps temperature rise within the nylon 6/6 housing limits for continuous duty.
Through-Hole Termination and Mated Stack Height
This z-height budget is fixed by the header body insulation height of 0.402" (10.20 mm) plus the receptacle envelope.
The PAD series itself may have been superseded by newer JST families, but a direct drop-in is not confirmed. No stock-holding claim is made; sourced per order.