The HFCW-1042+ from Mini Circuits is a RF High Pass Filter with Frequency 11500 to 20000 MHz, Insertion Loss 1 to 2 dB, Power 2.5 W, Rejection 23 to 34 dB, Lower Rejection 23 to 34 dB @DC to 8600 MHz. Tags: Surface Mount, Ceramic Filter. More details for HFCW-1042+ can be seen below.