CER0110A

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Ceramic Filters

Ceramic filters are constructed with ceramic diaphragms as the core material. These ceramic diaphragms are referred to as "piezoelectric ceramic elements" and contain a crystallized, electrically conductive material (usually tin oxide) in an electrically insulating medium (usually lead zirconate titanate). The combination of these materials allows these filters to perform very precise frequency selection processes.

CER0110A application field and working principle

CER0110A is a ceramic filter with very good selectivity and stability over temperature and time. It is widely used in communications systems, sampling systems, radar systems, and navigation systems as a frequency-selective device. It is also commonly used in cell phones and other wireless systems as a bandpass filter.

CER0110A works by converting electrical signals into mechanical vibrations at the frequency desired, using the piezoelectric characteristics of the ceramic material. The ceramic element then acts as a resonator at this frequency, allowing only frequencies at or near the frequency of selection to pass through. The piezoelectric effect is the phenomenon of the generation of a voltage across a material, when a mechanical stress is applied. It is the mechanism that is used in the CER0110A ceramic filter to select appropriate frequencies.

The ceramic element absorbs electric energy at the frequency desired, and this energy is converted into mechanical vibration. This vibration then determines the center frequency at which the element will pass signals. When the signal frequencies around the center frequency are within the bandwidth of the filter, they are allowed to pass to the output. The shape factor indicates how wide the pass-band of the filter is. The shape factor is the ratio of the 3 dB bandwidth to the center frequency. The CER0110A ceramic filter has a shape factor of 1:2, which means that the filter can pass a signal with the bandwidth of 2 times the center frequency to the output.

The CER0110A ceramic filter is designed for use in band-pass applications, and is suitable for frequencies from 1 MHz to 7 MHz. It provides excellent stability and selectivity at these frequencies. It also has good temperature characteristic, as it is designed to operate over a wide temperature range without degrading its selectivity or stability.

The CER0110A ceramic filter has many applications in communications systems, sampling systems, radar systems, and navigation systems. It is also used in cell phones and other wireless systems as a band-pass filter. Being a low-cost and low-power device, the CER0110A ceramic filter is an ideal choice for these types of applications.

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