Tier 1 OEM’s in telecom infrastructure market are designing the next standard for 5G telecommunications. It will provide faster data transmission speeds than current LTE (4G) systems, approaching broadband speeds achieved with landlines. Faster data communications will present challenges for critical components such as optical transceivers. The temperature of the device for outdoor environment will increase due to smaller form factors and no access to forced airflow, which will increase the heat flux density of the radio unit. This results in high temperatures exceeding the maximum operating limit of the optical transceiver, thus requiring an active cooling solution.