Board-to-Board Unshrouded Header – 13 Positions, 0.100" Pitch
The 77311-127-13LF: 13 positions in a single row — an odd circuit count that limits direct drop-in replacements but is common for specific I/O or control signals where an even count would waste space.
Current, Temperature, and Plating – What the Ratings Mean
In a board-to-board stack with limited airflow, expect to derate if the enclosure runs warm.
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