B39321R0821H210 Crystals, Oscillators, Resonators

Resonators are used to achieve high-precision frequency stabilization, and any applied voltage will not affect their performance requirements. The B39321R0821H210 resonator is one of the most common designs used today due to its excellent performance and reasonable cost. Its application field and working principle are worth exploring in detail.

Application FieldThe B39321R0821H210 resonator is designed to provide excellent frequency stability and good frequency accuracy while being economical and reliable to build. This resonator is widely used in communication system oscillator circuits, frequency selection filters, and so on. It covers many types of frequency sources and has become the preferred frequency stabilization resonator for many electronic circuits.

Working PrincipleThe B39321R0821H210 resonator consists of a quartz crystal element, electrodes, and an enclosure. The quartz crystal element inside the cavity is connected to a pair of electrodes under the action of external voltage. The electrode connection is capacitive, and a quartz crystal element is comprised of two plates of piezoelectric material separated by a thin piece of quartz crystal. When the voltage is applied to the electrodes, the quartz crystal element is deformed due to the piezoelectric effect, and the internal stress is changed, resulting in a change in the resonance frequency of the resonator. When the frequency of the quartz crystal element reaches a certain frequency, the resonator will resonate at that frequency. The quartz crystal assembly, electrodes, and enclosure of the B39321R0821H210 resonator are designed to provide the best frequency stability and accuracy possible.

In conclusion, the B39321R0821H210 resonator is widely used due to its excellent performance and cost-effectiveness. It is used in communication system oscillator circuits and other frequency selection filters and provides high frequency stability and accuracy while being reliable and economical to build. Furthermore, its working principle is based on the piezoelectric effect which, when voltage is applied to the electrodes, deforms the quartz crystal element and causes a change in resonance frequency.