SFP+ Cage with Integrated Heat Sink
The TE Connectivity 2299056-1 is a single-port SFP+ cage that integrates the heat sink directly into the stamped-metal enclosure. This is the part you specify when the optical module needs a defined thermal path to the chassis airflow — the cage body and fins are one piece, so the heat sink sits right on top of the module's case. It terminates via press-fit compliant pins into plated through-holes, no solder required, which keeps the assembly rework-friendly and avoids thermal stress on the backplane. The cage's spring fingers contact the panel cutout and the module's own shell for EMI containment.
Press-Fit Assembly and Board Layout
That makes it a clean fit for backplane assemblies where the cage is pressed into the board alongside other press-fit connectors on the same line. The trade-off is that the PCB's finished hole size and plating thickness must match the pin's compliant zone spec; a standard 0.040-inch finished hole with 1 oz copper is the usual target, but verify against the TE application drawing for this base number. The right-angle orientation determines the cage's footprint on the board — the press-fit pins are laid out in a row along the edge that faces the panel. The heat sink fins project upward, so the board's keep-out zone above the cage must be clear for airflow. The cage's own ground pins tie the shield to the PCB ground plane, which is where the EMI shielding gets its reference — a solid ground pour under the cage with stitching vias to the inner layers is the standard practice.
SFP+ Compatibility and Module Fit
The 2299056-1 is an SFP+ cage that accepts any SFP or SFP+ module conforming to the mechanical standard — the cage's internal dimensions, card-edge slot position, and latch engagement are standardized.