Standard Heatsinks in Optical Modules
To address rising module power—often exceeding 30W—the OSFP MSA defines two thermal designs: Integrated Heat Sink (IHS) and Riding Heat Sink (RHS). This article will explain the differences between the two designs to help users choose the appropriate product. Airflow / wind-pressure safe zone for OSFP heat sinks — shows upper & lower impedance curves. Thermal Structure Overview The thermal structure of an high-speed OSFP module is not defined by heat. Case Study: A team undertaking its first 400G OSFP deployment ordered the necessary switches, optical modules, and cables. Octal Small Formfactor Pluggable (OSFP) is a module and interconnect system with a pluggable form factor with eight high speed electrical lanes.
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