21-position unshrouded header
The 94611-121HLF: Mating contacts are gold or Gold GXT™ on phosphor bronze, and the through-hole termination suits wave-solder assembly.
Single-row unshrouded headers like the 94611-121HLF leave the board edge accessible for routing traces between pins — the 0.100" pitch accommodates one trace per channel on a standard two-layer board.
