The PA-218-45-5-4W-24V-SFF from Quantic PMI (Planar Monolithics) is a RF Amplifier with Frequency 2000 to 18000 MHz, Gain 45 dB, Noise Figure 5 dB, Saturated Power 4 W, Supply Voltage 24 V. Tags: Power Amplifier. More details for PA-218-45-5-4W-24V-SFF can be seen below.