I always used to think when I saw capacitor used in circuit ,"Why electrolytic capacitor is used here not ceramic or paper etc.??what is there working difference??what will happen when I use ceramic instead of electrolytic??". I started querying about it with teacher ,seniors and by my own surfing i got one perfect reason behind it , that is..
Several solid dielectrics are available, including paper, plastic, glass, mica and ceramic materials.
- Paper was used extensively in older devices and offers relatively high voltage performance. However, it is susceptible to water absorption, and has been largely replaced by plastic film capacitors.
- Plastics offer better stability and aging performance, which makes them useful in timer circuits, although they may be limited to low operating temperatures and frequencies.
- Ceramic capacitors are generally small, cheap and useful for high frequency applications, although their capacitance varies strongly with voltage and they age poorly.
- Glass and mica capacitors are extremely reliable, stable and tolerant to high temperatures and voltages, but are too expensive for most mainstream applications.
- Electrolytic capacitors and supercapacitors are used to store small and larger amounts of energy, respectively with maximum operating voltage.If the project parts list does not specify a voltage, choose a capacitor with a rating which is greater than the project's power supply voltage.
- If any body have certain comment's regarding it..than please forward it,,
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