The Amphenol FCI BERGSTIK II 79821-406HLF is a 6-position, dual-row, unshrouded board-to-board header on the standard 0.100" (2.54 mm) pitch. It uses tin-plated phosphor bronze square pins, through-hole solder termination, and a push-pull fastening interface. This is a basic, no-frills pin header — the kind you grab when you need a reliable signal interconnect on a breadboard-compatible grid, not a shrouded or keyed connector for high-vibration environments.
The 0.100" (2.54 mm) pitch and 0.100" row spacing are the classic DIP/IC footprint — this header drops into standard perfboard or a 0.100"-grid PCB layout without a custom footprint.