Technological innovation
HOTLine：0769-2268 1472
Technological innovation
HOTLine：0769-2268 1472
Monolithic capacitors multilayer ceramic capacitor nickname, the English name of monolithic ceramic capacitor or a multi-layer ceramic capacitor, referred to as the MLCC.
Monolithic capacitor biggest drawback is the high temperature coefficient, so the stability of the oscillator drift is intolerable, and we do a 555 oscillator capacitor in 7805 just next boot, using the oscilloscope to see the frequency, seeing it slowly change, later replaced by polyester capacitors much better.
Monolithic capacitor characteristics:Large capacity, small size, high reliability, electric capacity and stability, moisture resistance and good high temperature.
Applications:Widely used in electronic precision instruments. A variety of small electronic devices for resonance, coupling, filtering, bypass.
Capacity range:Type II, large capacity, but performance in general.
Depending on the material used, the monolithic capacitor can be divided into three categories:One for temperature compensation class NPO dielectric, such a capacitor electrical properties of the most stable, basically does not vary with temperature, voltage, change the time, it is a super-stable, low loss capacitor material type, applicable in stability, high reliability requirements HF, UHF, VHF circuits.
II for the high dielectric constant type X7R dielectrics, as X7R is a ferroelectric, which can create a larger capacity than the NPO dielectric capacitor. This capacitor more stable performance, with the temperature, changing the voltage of time, its unique performance did not change significantly, it is a stable capacitance material type used in blocking, coupling, higher near the road, filter circuits and high reliability requirements frequency circuit.
Three semiconductor type Y5V dielectric, such a capacitor having a high dielectric constant, commonly used in the production of large specific volume, the higher the nominal capacity of the large-capacity capacitor products. But its capacity is relatively X7R poor stability, capacity, loss of temperature, voltage and other test conditions more sensitive, mainly used in electronic machine oscillation, coupling, filtering and near the road circuit.
Monolithic ceramic capacitor capacitance than the average large (10pF ~ 10μF), and large capacity, small size, high reliability, electric capacity and stability, high temperature, good insulation, low cost, which has been widely used. Not only can replace monolithic capacitors mica capacitors and paper capacitor, also replace some of tantalum capacitors, widely used in small and ultra-small electronic devices (such as LCD watches and micro-instruments) in.
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