Ceramic Disc Capacitor Vs Multilayer

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.

Ceramic disc capacitor vs multilayer.

Ceramic capacitors and electrolytic capacitors are two main types of capacitors that are widely used in electrical and electronic components. This type of capacitor is very inexpensive to build and most look very much like figure 1. Mlccs are the most produced capacitors with a quantity of approximately 1000 billion devices per year. Ceramic disc capacitors have a low loss factor a reasonable level of stability and work well with high 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. The ceramic disc capacitor is pretty much the standard type used in the tone control circuit. Different types of ceramic capacitors. An american company in the midst of the apollo program launched in 1961 pioneered the stacking of multiple discs to create a monolithic block.

With capacitance values of 0 1 to 1000 pf. The smaller 700a series capacitors measure 0 055 0 055 in. 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. Multi layer ceramic smd capacitors are generally a superset of the older disc capacitors.

This multi layer ceramic capacitor. Generally speaking while electrolytic capacitors provide the largest capacitance they suffer significant degradation in capacitance and leakage current at higher temperatures and frequencies. Ceramic disc capacitors are made by coating a ceramic disc with silver contacts on both sides as shown above illustrates. 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.

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 early style of the ceramic disc capacitor could be more cheaply produced than the common ceramic tube capacitors in the 1950s and 1970s. 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. They are rated for wvdc to 250 v dc.