What This Coding Key Does in a Z-PACK Backplane
The TE Connectivity 5-100526-6 is a coding key — a polarisation insert that fits into a Z-PACK receptacle housing to prevent mismating of backplane connectors. It is cadmium-plated and yellow, making it visually distinct from other keys in the system. The key physically blocks incorrect header-receptacle pairings, ensuring that only the right mating half engages during assembly or field service.
