The maximum operating frequency of the BFR520T,115 is 5 GHz.
To ensure stability, follow the recommended PCB layout and component placement guidelines, and ensure that the device is properly decoupled and biased.
The recommended biasing scheme is a voltage-controlled current source with a series resistor to set the quiescent current.
Use a heat sink or thermal pad to dissipate heat, and ensure good airflow around the device. The maximum junction temperature is 150°C.
The typical noise figure of the BFR520T,115 is around 1.5 dB.