The PE210R258R515SFFLM Rev. B from Quantic PMI (Planar Monolithics) is a RF Amplifier with Frequency 0.25 to 8.5 GHz, Small Signal Gain 9 to 13 dB, Gain Flatness 1.5 to 2 dB, Noise Figure 4.5 dB, P1dB 16 dBm. Tags: Surface Mount, Low Noise Amplifier. More details for PE210R258R515SFFLM Rev. B can be seen below.