The IMF2345 from International Manufacturing Services is a Low Pass RF Filter with Frequency DC to 6 GHz, Stopband Frequency 8 to 16 GHz, 3 dB Cutoff Frequency 6 GHz, Insertion Loss 0.5 dB, Rejection 20 dB @ 8 GHz to 16 GHz. Tags: Surface Mount, Microstrip. More details for IMF2345 can be seen below.