erniceThe SFR433K with SAW Resonators SMD3225 RoHS is an Surface Mount Device (SMD) manufactured by Sfernice. It is a type of Radio Frequency (RF) component that can be used for a variety of applications such as wireless communication, sensing, and timing control. It features a frequency of 433MHz, a an ultra-compact ceramic package, and is RoHS compliant. This part is ideal for applications that require high performance and reliability in a small form factor.