The XLF-252H-D+ from Mini Circuits is a Low Pass RF Filter with Frequency DC to 2.5 GHz, Stopband Frequency 7 to 17 GHz, 3 dB Cutoff Frequency 3.8 GHz, Insertion Loss 1.2 dB, Rejection 38 to 44 dB. Tags: Die, Reflectionless Filter. More details for XLF-252H-D+ can be seen below.