120-pin unshrouded header — footprint and fit
The 3-103817-8: Rated 3A per contact across an operating range of -65°C to 105°C, with a UL94 V-0 thermoplastic housing. The gold mating finish (30.0µin) supports repeated mate cycles; the tin-lead post finish (100.0µin) is a legacy solder process — note the RoHS non-compliant status if your line requires lead-free.
Sourcing and compliance reality
Production status is Active. The RoHS non-compliant flag (tin-lead post finish) is the main sourcing constraint; if your BOM requires RoHS compliance, look for a gold or tin post variant in the 103817 base series.
