The BT05AG from BeRex, Inc. is a RF Amplifier with Frequency 5 MHz to 4 GHz, Gain 11.1 to 20.8 dB, Noise Figure 4.3 to 4.5 dB, Output Power 19.5 to 23 dBm, Output Power 0.09 to 0.2 W. Tags: Surface Mount, Driver Amplifier. More details for BT05AG can be seen below.