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精密TDK贴片电容的允许误差较小，而电解贴片电容的误差较大，它们采用不


同的误差等级。


 
额定工作电压：TDK贴片电容在电路中能够长期稳定、可靠工作，所承受的大直


流电压，又称耐压。对于结构、介质、容量相同的器件，耐压越高，体积越大。
 
温度系数：在一定温度范围内，温度每变化1℃，电容量的相对变化值。温


度系数越小越好。


 　 频率特性：TDK贴片电容的电参数随电场频率而变化的性质。在高频条件下工作


的TDK贴片电容，由于介电常数在高频时比低频时小，电容量也相应减小。损耗也随


频率的升高而增加。另外，在高频工作时，贴片电容的分布参数，如较片电阻、


引线和较片间的电阻、较片的自身电感、引线电感等，都会影响贴片电容的性能。


所有这些，使得贴片电容的使用频率受到限制。