RFM products are now Murata products. Ideal for European Superheterodyne Receivers at 433.92 MHz Extremely Low Series Resistance Quartz Stability Rugged, Hermetic, Low-Profile TO39 Case Pb Complies with Directive 2002/95/EC (RoHS) The RO3102 is a true one-port, surface-acoustic-wave (SAW) resonator in a low-profile TO39 case. It provides reliable, fundamental-mode, quartz frequency stabilization of fixed-frequency oscillators operating at .