Ceramic resonators or piezoceramic resonators are electronic components made of piezoceramic or a ferroelectric material.This difference is important because not every piezoceramic has ferroelectric properties, but every ferroelectric has piezoelectric properties.They use the piezoelectric effect for frequency-determining or frequency-selecting applications and are used in a similar way to oscillating crystals, but do not have the same frequency accuracy and stability.Compared to quartz oscillators, ceramic resonators have smaller dimensions and less need for external electronic components, are more robust with regard to mechanical loads and cost less.Simple electrical filters can also be produced by mechanically coupling two or more resonators.
- Ceramic resonator 190kHz~60 MHz (smallest size 2.5×2.0 mm, temperature range up to -40°C~+125°C)
- Ceramic filter: e.g. 455 kHz / 10.7MHz / 27 MHz /45 MHz
- Discriminator and Traps
- Printed pass band filter