501531-0410 vs 501531-0310 vs 501531-0210

 
PartNumber501531-0410501531-0310501531-0210
DescriptionBoard to Board & Mezzanine Connectors .4MM 40P V PLUG 1.30MM STACK HGHTBoard to Board & Mezzanine Connectors .4MM 30P V PLUG 1.30MM STACK HGHTBoard to Board & Mezzanine Connectors 0.4 BtB Plug Assy 20 ssy 20Ckt EmbsTp Pkg
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