The SQ25-1745K6SUA1 from KYOCERA AVX is a Quadplexer with Attenuation 20 to 57 dB, Frequency 1710.15 to 2199.85 MHz, Frequency1 1850.15 to 1914.75 MHz, Frequency2 1710.15 to 1779.85 MHz, Frequency3 1930.15 to 1994.75 MHz. Tags: Surface Mount. More details for SQ25-1745K6SUA1 can be seen below.