The MD9C1950/2140F60HCA from Vanlong is a RF Duplexer with Frequency 1.92 to 2.17 GHz, Band 1 1.92 to 1.98 GHz, Band 2 2.11 to 2.17 GHz, Insertion Loss 2 dB, Attenuation 55 dB. Tags: Surface Mount. More details for MD9C1950/2140F60HCA can be seen below.