The H100XHXS from Knowles is a RF High Pass Filter with Frequency 10.5 to 23 GHz, Bandwidth 12.5 GHz, Insertion Loss 0.75 to 2 dB, Rejection 30 dB, Lower Rejection 30 dB. Tags: Surface Mount, Ceramic Filter. More details for H100XHXS can be seen below.