Just One Electronics currently offers four true one-port, SAW resonators in low-profile TO39 cases & SMD package. These resonators provide reliable, fundamental-mode, quartz frequency stabilization of fixed-frequency transmitters operating at 315.00 MHZ, 345.00 MHz, 433.92 MHz, and 868.35 MHz. These products are designed specifically for remote-control and wireless security transmitters for use in the United Kingdom, in the USA, in Canada, and in Europe.One narrow band front-end filter is currently available. This filter is designed to provide front-end selectivity in 433.92 MHz receivers. Typical applications of these receivers are wireless remote-control and security devices operating in Europe.