The MN-90-520-7-S11 from Pole/Zero is a Tunable Filter with Frequency 90 to 520 MHz, Bandwidth 30.1 MHz, Insertion Loss 3.5 dB, Supply Voltage 4.5 to 5.5 V, Operating Temperature -40 to 85 Degree C. Tags: Surface Mount, Digitally Controlled. More details for MN-90-520-7-S11 can be seen below.