Board-Mount RJ45 Jack for Ethernet Patch and Industrial Links
The TE Connectivity 5557566-1 is an 8-position 8-contact (8p8c) modular jack, wired as a standard RJ45 Ethernet port. That thickness supports repeated plug insertions without the contact resistance drifting — a common failure point on lightly plated jacks in field-service or test equipment. No LED indicators are populated on this variant, and the part carries no shield shell, so it keeps the BOM cost low for non-EMI-critical runs.
Board Layout and Orientation
Right-angle through-hole termination with the tab facing down. The board footprint is the standard RJ45 pattern — eight through-hole pins plus two board-locating posts (Board Guide feature) that align the jack during wave solder and take the shear off the pins when the plug is inserted and yanked. The single-row pinout is 8p8c.