The FSDCSR8N773MK3NC-AZ from Taiyo Yuden is surface mount SAW duplexer with 773 MHz frequency, band 28a, 2.0/1.8(dB) insertion loss and 63/58(dB) attenuation. This SAW duplexer comes in 8-SMD, no lead package with dimensions: 1.8 mm × 1.4 mm × 0.44 mm. Operating temperature range is from -20 to +85°C.