Tusonix, Inc. RF Multiplexers - CER0255B CER0255B

The CER0255B is a surface mount duplexer designed for RF applications, operating within the frequency ranges of 896-902 MHz for the low band and 935-941 MHz for the high band. It features a typical passband insertion loss of 2.5 dB and a maximum insertion loss of 2.8 dB at 25¬?C. The return loss at both the transmitter and antenna ports is specified at a minimum of 10.0 dB. The device provides high attenuation levels, with 47.0 dB in the stopband from 935-941 MHz and 53.0 dB from 896-902 MHz. Constructed from a ceramic block coated with silver and housed in nickel silver plated steel, the duplexer weighs approximately 3.9 grams. It complies with RoHS standards, making it suitable for environmentally conscious projects. The operating temperature range is from -30¬?C to +85¬?C, ensuring reliability in various conditions. Each unit is tested to meet critical electrical specifications, with allowances for minor deviations in insertion loss and return loss.