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| 型号： | C124G102D5CX5CM |
| 厂商： | KEMET Corporation |
| 英文描述： | MILITARY SPECIFCATIONS ON BACK |
| 中文描述： | 背面军事SPECIFCATIONS |
| 文件页数： | 35/40页 |
| 文件大小： | 509K |
| 代理商： | C124G102D5CX5CM |
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KEMET Electronics Corporation, P.O. Box 5928, Greenville, S.C. 29606, (864) 963-6300
35
fClasfarad). Standard measurement conditions are as
1MHz and 1.2 VRMS
maximum.
1kHz and 1.2 VRMS
maximum.
1 kHz and 1.0 ± 0.2 VRMS.
1 kHz and 0.5 ± 0.1 VRMS.
Class I (over 1,000 pF):
Class II:
Class III:
Like all other practical capacitors, multilayer ceramic
capacitors also have resistance and inductance. A simplified
schematic for the equivalent circuit is shown in Figure 1.
Other significant electrical characteristics resulting from
these additional properties are as follows:
Impedance:
Since the parallel resistance (Rp) is nor-
mally very high, the total impedance of the capacitor is:
Figure 1
C = Capacitance
L = Inductance
RS = Equivalent Series Resistance (ESR)
RP = Insulation Resistance (IR)
RP
RS
C
L
Z =
RS + (XC - XL)
2
Where
Z = Total Impedance
RS = Equivalent Series Resistance
XC = Capacitive Reactance = 1/(2
π
fC)
XL = Inductive Reactance = 2
π
fL
Insulation Resistance:
Insulation Resistance (IR) is the
DC resistance measured across the terminals of a capacitor,
represented by the parallel resistance (Rp) shown in Figure 1.
For a given dielectric type, electrode area increases with
capacitance, resulting in a decrease in the insulation resis-
tance. Consequently, insulation resistance is usually specified
as the “RC” (IR x C) product, in terms of ohm-farads or
megohm-microfarads. The insulation resistance for a specific
capacitance value is determined by dividing this product by
the capacitance. However, as the nominal capacitance values
become small, the insulation resistance calculated from the
RC product reaches values which are impractical.
Consequently, IR specifications usually include both a mini-
mum RC product and a maximum limit on the IR calculated
from that value. For example, a typical IR specification might
read “1,000 megohm-microfarads or 100 gigohms, whichever
is less.”
Insulation Resistance is the measure of a capacitor to
resist the flow of DC leakage current. It is sometimes referred
to as “leakage resistance.” The DC leakage current may be
calculated by dividing the applied voltage by the insulation
resistance (Ohm’s Law).
Dielectric Withstanding Voltage:
Dielectric withstand-
ing voltage (DWV) is the peak voltage which a capacitor is
designed to withstand for short periods of time without dam-
age. All KEMET multilayer ceramic capacitors will withstand a
test voltage of 2.5 x the rated voltage for 60 seconds.
KEMET specification limits for these characteristics at
standard measurement conditions are shown in Table 1 on
page 4. Variations in these properties caused by changing
conditions of temperature, voltage, frequency, and time are
covered in the following sections.
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相关代理商/技术参数 |
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| C124G102D5CX5CP | 制造商:KEMET 制造商全称:Kemet Corporation 功能描述:MILITARY SPECIFCATIONS ON BACK |
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| C124G102D5G5CR | 制造商:KEMET 制造商全称:Kemet Corporation 功能描述:MILITARY SPECIFCATIONS ON BACK |
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