Why the 0.100-inch pitch matters for your board layout
The 10129382-920001BLF: That means it mates directly with common IDC sockets, 0.100-inch ribbon cable connectors, and 0.025-inch square-post receptacles without adapters. The right-angle orientation and 0.120" (3.05mm) solder post length are tailored for 1.6mm-thick PCBs where the header exits perpendicular to the board. This saves z-height in compact enclosures compared to a vertical header.
The thin gold layer prevents oxidation during storage but wears faster than a 15µin or 30µin gold option — expect lower cycle life. This header is a good fit for low-mating-cycle board interconnects inside equipment, not for frequent field-service disconnects.
Mating compatibility — IDC sockets and 0.025-inch receptacles
The unshrouded male pins with 0.230" (5.84mm) mating length mate with standard 0.100-inch IDC sockets, 0.025-inch square-post receptacles, and many 20-position dual-row crimp housings.