The HFCG-1230+ from Mini Circuits is a RF High Pass Filter with Frequency 1400 to 8000 MHz, Insertion Loss 0.4 to 1.6 dB, Power 2.5 W, Rejection 20 to 44 dB, Lower Rejection 20 to 44 dB @DC to 1000 MHz. Tags: Surface Mount, Ceramic Filter. More details for HFCG-1230+ can be seen below.