The ALN1103R2 from ASB Inc. is a RF Amplifier with Frequency 950 MHz to 1.25 GHz, Gain 32.5 dB, Gain Flatness ± 1.4 dB, Noise Figure 0.65 dB, Output Power 21 dBm. Tags: Surface Mount, Low Noise Amplifier. More details for ALN1103R2 can be seen below.