The JS3-18004000-45-5P from Narda-MITEQ is a RF Amplifier with Frequency 18 to 40 GHz, Gain 16 dB, Gain Flatness ± 2.5 dB, Noise Figure 4.5 dB, P1dB 5 dBm. Tags: Power Amplifier, Low Noise Amplifier. More details for JS3-18004000-45-5P can be seen below.