- 您现在的位置：买卖IC网 > PDF目录295242 > CCCR05Cxxx (AVX Corporation) Multiayer Ceramic Leaded Capacitors PDF资料下载
参数资料
| 型号： | CCCR05Cxxx |
| 厂商： | AVX Corporation |
| 英文描述： | Multiayer Ceramic Leaded Capacitors |
| 中文描述： | Multiayer引线陶瓷电容器 |
| 文件页数： | 34/71页 |
| 文件大小： | 1096K |
| 代理商： | CCCR05CXXX |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页当前第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页
3
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.
Insulation Resistance – Insulation Resistance is the resis-
tance measured across the terminals of a capacitor and
consists principally of the parallel resistance R
P shown in
the equivalent circuit. As capacitance values and hence the
area of dielectric increases, the I.R. decreases and hence
the product (C x IR or RC) is often specified in ohm farads
or more commonly megohm microfarads. Leakage current
is determined by dividing the rated voltage by IR (Ohm’s
Law).
Dielectric Strength – Dielectric Strength is an expression
of the ability of a material to withstand an electrical stress.
Although dielectric strength is ordinarily expressed in volts,
it is actually dependent on the thickness of the dielectric
and thus is also more generically a function of volts/mil.
Dielectric Absorption – A capacitor does not discharge
instantaneously upon application of a short circuit, but
drains gradually after the capacitance proper has been dis-
charged. It is common practice to measure the dielectric
absorption by determining the “reappearing voltage” which
appears across a capacitor at some point in time after it
has been fully discharged under short circuit conditions.
Corona – Corona is the ionization of air or other vapors
which causes them to conduct current. It is especially
prevalent in high voltage units but can occur with low
voltages as well where high voltage gradients occur. The
energy discharged degrades the performance of the
capacitor and can in time cause catastrophic failures.
CERAMIC CAPACITORS
Multilayer ceramic capacitors are manufactured by mixing
the ceramic powder in an organic binder (slurry) and cast-
ing it by one technique or another into thin layers typically
ranging from about 3 mils in thickness down to 1 mil or
thinner.
Metal electrodes are deposited onto the green ceramic
layers which are then stacked to form a laminated
structure. The metal electrodes are arranged so that their
terminations alternate from one edge of the capacitor to
another. Upon sintering at high temperature the part
becomes a monolithic block which can provide extremely
high capacitance values in small mechanical volumes.
Figure 1 shows a pictorial view of a multilayer ceramic
capacitor.
Multilayer ceramic capacitors are available in a wide range of
characteristics, Electronic Industries Association (EIA) and
the military have established categories to help divide the
The Capacitor
E.S.R.
C
I (Ideal)
I (Actual)
Phase
Angle
Loss
Angle
V
IR
s
f
相关PDF资料 |
PDF描述 |
|---|---|
| CCE2C1A150.0 | CRYSTAL OSCILLATOR, CLOCK, 0.2 MHz - 200 MHz, CMOS OUTPUT |
| CCE2C9150.0 | CRYSTAL OSCILLATOR, CLOCK, 0.2 MHz - 200 MHz, CMOS OUTPUT |
| CCE2C9200.0 | CRYSTAL OSCILLATOR, CLOCK, 0.2 MHz - 200 MHz, CMOS OUTPUT |
| CCK300 | TIME DELAY BLOW ELECTRIC FUSE, 300A, 48VDC, INLINE/HOLDER |
| CCK250 | TIME DELAY BLOW ELECTRIC FUSE, 250A, 48VDC, INLINE/HOLDER |
相关代理商/技术参数 |
参数描述 |
|---|---|
| CCCR2AGC301 | 制造商:OMRON AUTOMATION AND SAFETY 功能描述:V530 LG2 8FT RS232 CABLE W/PS |
| CC-CR2AGC3-01 | 制造商:OMRON AUTOMATION AND SAFETY 功能描述:V530 LG2 8FT RS232 CABLE W/PS 制造商:OMRON INDUSTRIAL AUTOMATION 功能描述:V530 LG2 8ft RS232 cable w/ps |
| CCCS-06-08 | 制造商:Avdel 功能描述: |
| CCD | 制造商:Middle Atlantic Products 功能描述: 制造商:Thomas & Betts 功能描述: 制造商:Thomas & Betts 功能描述:Universal Recessed Box And Cover |
| C-CD | 制造商:Sanwa Electric Instrument 功能描述:Bulk |
发布紧急采购，3分钟左右您将得到回复。