Ceramic Disc Capacitor Vs Multilayer

Different types of ceramic capacitors.

Ceramic disc capacitor vs multilayer.

The ceramic capacitor uses a thin ceramic layer as the dielectric medium whereas the electrolytic capacitor uses an ionic liquid as one of the sheets of the capacitor. Ceramic disc capacitors are made by coating a ceramic disc with silver contacts on both sides as shown above illustrates. Multi layer ceramic smd capacitors are generally a superset of the older disc capacitors. The same company s 700a and 700b series of porcelain and ceramic multilayer capacitors also provide the temperature stable characteristics of npo dielectric materials in multilayer configurations.

The ceramic disc capacitor is pretty much the standard type used in the tone control circuit. This type of capacitor is very inexpensive to build and most look very much like figure 1. The traditional disc caps are basically just a slab of ceramic with plate on each side radial leads attached and dipped in epoxy or maybe ceramic for coating. If by monolithic you mean the multi layer chip caps sometimes labled mlcc that s what all the high density ceramic caps are.

An american company in the midst of the apollo program launched in 1961 pioneered the stacking of multiple discs to create a monolithic block. Also i d look at the schematic carefully and see how that capacitor is used. They are rated for wvdc to 250 v dc. Generally speaking while electrolytic capacitors provide the largest capacitance they suffer significant degradation in capacitance and leakage current at higher temperatures and frequencies.

There is really nothing the old 100 nf disc capacitor can do that a modern 100 nf smd cap can t do within their voltage ratings. Ceramic disc capacitors have a low loss factor a reasonable level of stability and work well with high frequencies. Mlccs are the most produced capacitors with a quantity of approximately 1000 billion devices per year. Ceramic disc capacitors have a capacitance value of about10pf to 100μf with a wide variety of voltage ratings between 16v to 15 kv and more.

With capacitance values of 0 1 to 1000 pf. The types of ceramic capacitors most often used in modern electronics are the multi layer ceramic capacitor otherwise named ceramic multi layer chip capacitor mlcc and the ceramic disc capacitor. This multi layer ceramic capacitor. The smaller 700a series capacitors measure 0 055 0 055 in.