erniceThe SFR370K with SAW Resonators SMD3225 RoHS is a surface-mount, hermetically sealed filter manufactured by Sfernice. This filter has a wide range of frequency operation, from 3.0 to 6.5 GHz, and features a low insertion loss of less than 0.8 dB over its full frequency range. It is built with a lead-free, RoHS-compliant construction that uses ultra-low-loss SAW resonators and wide bandwidth ceramic dielectrics. The device has an ultra-stable temperature range, making it well-suited for use in temperature critical applications such as 5G cellular base stations. Furthermore, its small form factor makes it suitable for use in multiple-input-multiple-output (MIMO) antenna systems, where it will provide superior signal processing in high-noise environments.