The BZ-19002100-151225-052020 from B&Z Technology is a RF Amplifier with Frequency 19 to 21 GHz, Gain 25 to 30 dB, Gain Flatness ±0.5 dB, Noise Figure 1.4 to 1.5 dB, Output Power 12 to 13 dBm. Tags: Power Amplifier. More details for BZ-19002100-151225-052020 can be seen below.