Almost four years since Murata first introduced the three millimetre square package, brand new technology has meant further performance improvements. The thermal coefficient has been reduced by almost 50% to 0.016ppm/°C2 (typical) and the resonant loss has been improved by approximately 1dB to 1.5dB (maximum), compared to previous generations of Murata SAW resonators. The range is offered with tolerance of either ±50kHz or ±50ppm, compared to the ±75kHz offered by previous generations.
Resonators in the SARCC series come in two types, each named using a different suffix: part numbers suffixed -KX are intended for the consumer electronics applications and are also suitable for some automotive applications such as RKE (remote keyless entry) systems. Part numbers suffixed -TX are full automotive grade (AEC-Q200) devices, suitable for applications such as TPMS (tyre pressure monitoring systems).
The new family, which covers all the most requested frequencies, is available in industry standard 3.0 x 3.0 mm size, 6-pin ceramic packaging and is backward compatible with older devices.