1. 额定容量 Rated capacitance                                             
      电容器容量的设计值,通常在电容器上显示。     The capacitance value for which the capacitor has been      designed and which is usually indicated upon it.  2. 类别温度范围 Category temperature range:                         电容器设计连续工作温度的范围,是由类别温度所定义     的。      The range of ambient temperatures for which the      capacitor has been designed to operate continuously;      This is defined by the temperature limits of the appropriate      category.  3. 上限类别温度 Upper category temperature                          电容器连续工作下最高的环境温度。     The maximum ambient temperature for which a capacitor      has been designed to operate continuously.  4. 下限类别温度 Lower category temperature:                         电容器连续工作下最低的环境温度。     The minimum ambient temperature for which a capacitor     has  been designed to operate continuously.  5. 额定温度 Rated temperature:                                              可连续施加额定电压的最大环境温度。     The maximum ambient temperature at which rated voltage      may be continuously applied.  6. 额定电压 Rated voltage:                                                        最大的直流电压或最大有效值交流电压或脉冲电压的峰值,     可在下限类 别温度与额定温度之间任一温度下连续载入于     电容器的电压。     The maximum direct voltage or the maximum RMS      alternating voltage or peak value of pulse voltage which      may be applied continuously to a capacitor at any      temperature between the lower category temperature      and the rated temperature.  7. 类别电压 Category voltage:                                                 电容器在其上限温度下可连续施加在电容上的最大电压。         The maximum voltage which may be applied continuously      to a capacitor  at its upper category temperature.  8. 温度降额电压 Temperature derating voltage:                        对于额定温度和上限类别温度之间的任一温度,降温电压     是可以连续施加到电容器上的最大电压。     For any temperature between the rated temperature and       the upper category temperature, the temperature derating      voltage is the maximum voltage that may be applied      continuously to a capacitor.   | 9. 绝缘电阻(IR) / 时间常数 (t)                                                               Insulation resistance (IR) / Time constant (t):                         绝缘电阻是电容器充电一分钟后所加的直流电压和流经电容器     的漏电流值的比值。 单位“MΩ”。 时间常数为绝缘电阻和电容     量的乘积,通常以秒表示,公式如下:     t (s)=lR (MΩ)×CR (μF) .     The insulation resistance is the ratio between an applied DC     voltage and the resulting leakage current after a minute of      charge. It is expressed in MΩ.      The time constant is expressed in seconds with the following      formula:      t (s)=lR (MΩ)×CR (μF). 10. 脉冲上升时间 Pulse rise time (dv/dt):                                        脉冲上升时间决定了电容器承受快速电压变化引起的大电流峰     值的能力。 峰值电流定义公式如下:     lp(A)=C(uF) × dv/dt ( V/μs)      The pulse rise time defines the capability of a capacitor to      withstand high current peaks due to fast voltage changes.      The peak current is defined by the following formula:      lp(A)=C(uF) × dv/dt ( V/μs)  11. 损耗角正切及等效串联电阻                                                          Dissipation factor and equivalent series resistance:                 耗散因数或损耗角正切(tanδ) 是指电容器在规定频率的正弦电压     作用下,电容器损耗的功率除以电容器的无功功率。 等效串联     电阻(ESR)是由电容串联电阻和电感组成的等效电路。     The dissipation factor or tangent of loss angle (tan δ) is the      power loss of the capacitor divided by the reactive power of      the capacitor at a sinusoidal voltage of specified frequency.      The equivalent series resistance(ESR) is the resistive part of      the equivalent circuit composed of capacitance, series      resistance and inductance. 
 
 
 
 
  
 
 
 
 
  |