The PE2-45-4R05R0-2R0-21-12-SFF from Quantic PMI (Planar Monolithics) is a RF Amplifier with Frequency 4 to 5 GHz, Gain 45 dB, Gain Flatness ± 0.5 dB, Noise Figure 2 dB, Output Power 21 dBm. Tags: Surface Mount, Low Noise Amplifier. More details for PE2-45-4R05R0-2R0-21-12-SFF can be seen below.