The XLF-312H+ from Mini Circuits is a Low Pass RF Filter with Frequency DC to 3.53 GHz, Stopband Frequency 7.9 to 22 GHz, 3 dB Cutoff Frequency 5.6 GHz, Insertion Loss 1.4 to 2.2 dB, Rejection 13 to 51 dB. Tags: Surface Mount, Reflectionless Filter. More details for XLF-312H+ can be seen below.