Board-fit and footprint basics
The 9-103324-0-02: This is a 4-position, 2-row header on 0.100-inch (2.54mm) pitch — the standard grid for prototyping and low-density board interconnects.
What the tin plating means for field life
Tin frets under vibration if the connection is unmated and remated repeatedly; for a fixed harness that stays connected, it holds up fine. The post finish is also 100 µinch tin, which solders cleanly with standard rosin-core flux and lead-free profiles.
