The CER0702C from CTS Electronic Components is a RF Duplexer with Frequency 824 to 894 MHz, Band 1 869 to 894 MHz, Band 2 824 to 849 MHz, Power 20 to 200 W, Insertion Loss 1.6 to 1.7 dB. Tags: Ceramic, Surface Mount. More details for CER0702C can be seen below.