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ECS offers a wide frequency range of low cost ceramic resonators. From our low frequency ZTB series (190 KHz to 1250 KHz) as well as our ZTA and ZTT series (2,000 MHz to 48,000 MHz). Our space saving ZTT series has built in capacitors to complete an oscillator circuit. The ceramic resonator is an excellent low cost frequency control solution when absolute frequency accurancy is not important.