The 20021121-00030T4LF: This is a 30-position, dual-row header on a 1.27mm pitch — the tightest common pitch in the Minitek127 family. That density saves board real estate but demands a controlled impedance stack-up if the traces between rows run at high edge rates.
Current and Contact Reality
The gold mating finish — 10 µinch minimum — is enough for moderate mating cycles (50-100 mates) in a clean environment.
