What this 2-pin header is for
The 2-1971845-2: This is a 2-position, single-row header from TE's 1971845 series, designed for board-to-cable/wire connections at a 5.00mm pitch. The UL94 V-0 nylon housing and glow wire compliant feature add safety margin for high-temperature fault conditions.
Pitch, plating, and temperature range
At 5.00mm pitch, this header gives more room per circuit than a 2.54mm or 3.96mm part — useful for routing thicker wire or when you need creepage distance between adjacent pins. The -40°C to 120°C range covers cold storage and hot cabinet environments without needing a derating curve lookup. The 0.504 inch (12.80mm) insulation height gives the shroud enough depth to fully seat the mating housing's latch.