Capacitors are electrical energy storage devices used in electronic
industry for varied applications, notably as elements of resonant circuits,
as coupling and by pass applications, blockage of DC current, as frequency
determining & tuning elements as filters and delay line components, and for
voltage transient suppressions. The main advantage of ceramic capacitors over
other types of capacitors is its high capacitance to volume ratio and low cost.
The MOV's are voltage dependent, non-linear devices which are manufactured
using semi conducting metal oxides and has a current (1), voltage (V)
characteristics given by the following equation 1=KVn where K is a Parametric
constant and 'n' in the non-linear factor.
Piezo Ceramic Buzzer consists of an acoustic case precisely engineered to
resonate at the specified frequency range. The Piezo Crystal is attached
to a metallic vibrator, on application of AC voltage it vibrates at the same
frequency as the applied AC signal. Resonation of the vibration in the cavity
produce sound.