The UPD007A from CTS Electronic Components is a RF Duplexer with Frequency 2.5 to 2.69 GHz, Band 1 2.62 to 2.69 GHz, Band 2 2.5 to 2.57 GHz, Power 1.5 to 15 W, Insertion Loss 3 dB. Tags: Ceramic, Surface Mount. More details for UPD007A can be seen below.