Position Count vs Sibling: 10 vs 20 Circuits
The 77311-102-10LF: Both are active, single-row, unshrouded headers with the same 0.100" pitch, 3 A rating, gold mating finish, and 0.465" overall length. Another sibling, the 77311-124-10LF, also carries 10 positions but has a 0.480" overall length — 0.015" longer than this part — which may affect board-to-board stack height in tight enclosures.
