Board Fit and Routing Decisions
The 68602-220HLF: The dual-row layout gives you 10 circuits per row, and the 0.100" row spacing matches the footprint for common 0.100" box headers or receptacles.
Current, Temperature, and Contact Life
In a 20-position header drawing 3 A on every pin, the total heat load is 60 A distributed across the rows; the derating curve (not shown here) typically reduces that at elevated ambient. The phosphor bronze contact material maintains spring force across that range without stress relaxation.