The SAC3703Q3 from SuperApex Corporation is a Gain Equalizer with Frequency 1 to 20 GHz, Gain Equalization 9 dB, Power 20 dBm, Impedance 50 Ohms, Operating Temperature -55 to 85 Degree C. Tags: Surface Mount, Positive Gain Slope. More details for SAC3703Q3 can be seen below.