Board Layout Fit: 2.00 mm Pitch, 40 Positions, Dual-Row
Row spacing is 3.30 mm. The header is fully shrouded — four walls around the pins — so the mating receptacle self-aligns during assembly and bent pins from blind mate are rare. The liquid crystal polymer (LCP) housing holds up to reflow profiles and meets UL94 V-0 flame rating.
Contact Rating and Plating: 3 A, Gold, 30 µinch
In a field-service application cycled quarterly, that gold layer supports well over a decade of service before wear-through. Contact material is copper alloy, square pin shape.
It is ROHS3 compliant.
The 1-1939995-0 offers 40 positions vs 4, SMT vs through-hole, gold vs tin mating finish, and a board guide instead of a board lock — a different density and plating tier for higher-cycle or signal applications.