The SBRF-0250-0500-01-N from Fairview Microwave is a Tunable Filter with Frequency 250 to 500 MHz, Bandwidth 3 to 7 MHz, Input Power 50 W, Operating Temperature -55 to 85 Degree C, Storage Temperature -55 to 125 Degree C. Tags: Module with Connectors, Mechanically Controlled. More details for SBRF-0250-0500-01-N can be seen below.