家电小知识:表贴电容的分类

导读新时代发展越来越快相信很多小伙伴对家电知识这方面很朦胧吧,正好小编对家电方面颇有研究,现在就跟小伙伴们聊聊一篇关于表贴电容的分类,

新时代发展越来越快相信很多小伙伴对家电知识这方面很朦胧吧,正好小编对家电方面颇有研究,现在就跟小伙伴们聊聊一篇关于表贴电容的分类,相信很多小伙伴们都会感兴趣,那么小编也收集到了有关表贴电容的分类信息,希望小伙伴们看了有所帮助。

表贴电容的分类Class 1-------------[C0G]–Temperature compensaTIng capacitors: have low levels of barium TItanate, calcium TItanate, and other things added to increase the dielectric constant, or to get a desired temperature slope. –Very low temperature drift ,aging, voltage coefficient, frequency coefficient, leakage, and dissipaTIon factor. –Dielectric absorption is typically"low"but not usually specified. –Size problem : The voltage breakdown is low?Class 2-------------[X7R]–Based mostly on barium titanate (Ba2 TiO3–very poor temperature drift, high voltage-coefficient-of-capacitance and, high voltage-coefficient-of-dissipation factor, high frequency-coefficient-of-capacitance and a significant aging rate {the crystal structure}?Class 3–used only for DC blocking and P.S. bypassing, and even then, change in capacitance due to aging, temperature coefficient, and voltage coefficient must be taken into account. –use the lowest K material that you can, and use them at a low percentage of rated voltage. ?Class 4 -------------[Z5U]–the barrier-layer or reduced-titanate ceramics. –low breakdown voltage, high leakage and all-around terrible electrical properties. –obsolete.

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