The NN-225-512-10-S02 from Pole/Zero is a Tunable Filter with Frequency 225 to 512 MHz, Bandwidth 28.7 MHz, Insertion Loss 2.5 dB, Supply Voltage 3.135 to 3.6 V, Operating Temperature -40 to 85 Degree C. Tags: Surface Mount, Digitally Controlled. More details for NN-225-512-10-S02 can be seen below.