新時代發展越來越快相信很多小伙伴對家電知識這方面很朦朧吧,正好小編對家電方面頗有研究,現在就跟小伙伴們聊聊一篇關于表貼電容的分類,相信很多小伙伴們都會感興趣,那么小編也收集到了有關表貼電容的分類信息,希望小伙伴們看了有所幫助。
表貼電容的分類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.