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參數(shù)資料
| 型號： | 06035A220JAT2A |
| 英文描述： | KONDENSATOR 50V 22PF 10ST |
| 中文描述： | KONDENSATOR 50V 22PF 10ST |
| 文件頁數(shù)： | 35/46頁 |
| 文件大?。?/td> | 659K |
| 代理商： | 06035A220JAT2A |
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39
General Description
Energy Stored – The energy which can be stored in a
capacitor is given by the formula:
E = 12CV
2
E = energy in joules (watts-sec)
V = applied voltage
C = capacitance in farads
Potential Change – A capacitor is a reactive component
which reacts against a change in potential across it. This is
shown by the equation for the linear charge of a capacitor:
I
ideal =
C
dV
dt
where
I = Current
C = Capacitance
dV/dt = Slope of voltage transition across capacitor
Thus an infinite current would be required to instantly
change the potential across a capacitor. The amount of
current a capacitor can “sink” is determined by the above
equation.
Equivalent Circuit – A capacitor, as a practical device,
exhibits not only capacitance but also resistance and induc-
tance. A simplified schematic for the equivalent circuit is:
C = Capacitance
L = Inductance
Rs = Series Resistance
Rp = Parallel Resistance
Reactance – Since the insulation resistance (Rp) is normally
very high, the total impedance of a capacitor is:
Z =
R2
S + (XC - XL )
2
where
Z = Total Impedance
R
s = Series Resistance
X
C = Capacitive Reactance
=
1
2
π fC
X
L = Inductive Reactance
= 2
π fL
The variation of a capacitor’s impedance with frequency
determines its effectiveness in many applications.
Phase Angle – Power Factor and Dissipation Factor are
often confused since they are both measures of the loss in a
capacitor under AC application and are often almost identi-
cal in value. In a “perfect” capacitor the current in the
capacitor will lead the voltage by 90°.
In practice the current leads the voltage by some other
phase angle due to the series resistance R
S. The comple-
ment of this angle is called the loss angle and:
Power Factor (P.F.) = Cos
f or Sine
Dissipation Factor (D.F.) = tan
for small values of
the tan and sine are essentially equal
which has led to the common interchangeability of the two
terms in the industry.
Equivalent Series Resistance – The term E.S.R. or
Equivalent Series Resistance combines all losses both
series and parallel in a capacitor at a given frequency so
that the equivalent circuit is reduced to a simple R-C series
connection.
Dissipation Factor – The DF/PF of a capacitor tells what
percent of the apparent power input will turn to heat in the
capacitor.
Dissipation Factor =
E.S.R.
= (2
π fC) (E.S.R.)
X
C
The watts loss are:
Watts loss = (2
π fCV2) (D.F.)
Very low values of dissipation factor are expressed as their
reciprocal for convenience. These are called the “Q” or
Quality factor of capacitors.
Parasitic Inductance – The parasitic inductance of capac-
itors is becoming more and more important in the decou-
pling of today’s high speed digital systems. The relationship
between the inductance and the ripple voltage induced on
the DC voltage line can be seen from the simple inductance
equation:
V = L di
dt
R
L
R
C
P
S
I (Ideal)
I (Actual)
Phase
Angle
Loss
Angle
V
IR
s
f
E.S.R.
C
相關PDF資料 |
PDF描述 |
|---|---|
| 06035A221JAT2A | KONDENSATOR 50V 220 PF 10ST |
| 06035A330JAT2A | KONDENSATOR 50V 33PF 10ST |
| 06035A331JAT2A | KONDENSATOR 50V 330PF 10ST |
| 06035A470JAT2A | KONDENSATOR 50V 47PF 10ST |
| 06035A471JAT2A | KONDENSATOR 50V 470PF 10ST |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 06035A220JAT2A | 制造商:AVX Corporation 功能描述:CAPACITORS CERAMIC MULTI-LAYER SERIES:A |
| 06035A220JAT2A/4K | 制造商:AVX Corporation 功能描述:CAP CER 22PF 50V 5% NP0 0603 |
| 06035A220JAT4A | 功能描述:多層陶瓷電容器MLCC - SMD/SMT 50volts 22pF 5% C0G RoHS:否 制造商:American Technical Ceramics (ATC) 電容:10 pF 容差:1 % 電壓額定值:250 V 溫度系數(shù)/代碼:C0G (NP0) 外殼代碼 - in:0505 外殼代碼 - mm:1414 工作溫度范圍:- 55 C to + 125 C 產(chǎn)品:Low ESR MLCCs 封裝:Reel |
| 06035A220JAT7A | 制造商:AVX Corporation 功能描述:CAP 22PF 50VDC C0G 5% SMD 0603 - Bulk |
| 06035A220JBT1A | 功能描述:多層陶瓷電容器MLCC - SMD/SMT 50volts 22pF 5% C0G RoHS:否 制造商:American Technical Ceramics (ATC) 電容:10 pF 容差:1 % 電壓額定值:250 V 溫度系數(shù)/代碼:C0G (NP0) 外殼代碼 - in:0505 外殼代碼 - mm:1414 工作溫度范圍:- 55 C to + 125 C 產(chǎn)品:Low ESR MLCCs 封裝:Reel |
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