The TE Connectivity 1828028-2 is an SC-to-SC simplex fiber optic coupler — a bulkhead adapter that joins two SC-terminated single-fiber cables. Both ends are SC receptacles, so it is not a hybrid adapter for different connector types. The green housing and angle-polished (APC) ferrule indicate it is intended for single-mode applications where low back reflection matters, such as telecom or CATV distribution panels. The ceramic ferrule provides stable insertion loss over repeated matings. Mounts via snap-in into a panel cutout with a flange; no screws or hardware needed. The dust cap protects the ferrule when the port is unmated. Housing is glass-filled PBT rated UL94 V-0 for equipment inside an enclosure.
Obsolete — What That Means for Sourcing
TE Connectivity lists the 1828028-2 as Obsolete.
The 1828028-1 is the same SC simplex coupler but in a beige housing, which typically signals a non-angle-polished (UPC) ferrule. The 1828028-2 green body identifies the angle-polished APC version. The difference is the polish geometry — APC (8° angle) vs UPC (flat) — which affects return loss performance. For single-mode systems requiring low back reflection, the APC variant is the correct choice.
Single-Mode Compatibility
The angle-polished ferrule and green housing are the standard industry identifiers for an APC single-mode coupler. The ceramic ferrule supports single-mode alignment tolerances. Yes, this coupler is designed for single-mode fiber.