The RCF-1085.000-2170000-2012-W-001 from Raltron is a Low Pass RF Filter with Frequency DC to 2170 MHz, Bandwidth 2170 MHz, Stopband Frequency 2400 to 7350 MHz, Insertion Loss 0.75 to 0.85 dB, Rejection 5 to 23 dB. Tags: Surface Mount, Ceramic Filter. More details for RCF-1085.000-2170000-2012-W-001 can be seen below.