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參數(shù)資料
| 型號： | 255D157X06R3D2T055 |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | Organic Polymer, Low ESR, Tantalum Capacitors Commercial, Surface Mount Capacitors for Switch Mode Power Supplies and Converters |
| 中文描述： | 有機(jī)聚合物，低ESR，商業(yè)鉭電容，表面貼裝電容器開關(guān)電源和轉(zhuǎn)換器 |
| 文件頁數(shù)： | 3/6頁 |
| 文件大?。?/td> | 177K |
| 代理商： | 255D157X06R3D2T055 |
Document Number: 40052
Revision 04-Feb-03
www.vishay.com
4
Type 255D
Vishay Sprague
PERFORMANCE CHARACTERISTICS
1.
Operating Temperature:
Capacitors are designed to
operate over the temperature range of - 55
°
C to
+105
°
C.
1.1
Capacitors may be operated to + 105
°
C with voltage
derating to 0.8 times the + 85
°
C rating.
- 55
°
C
±
2
0%
+ 85
°
C
±
2
0%
+ 105
°
C
±
3
0%
5.
Capacitance Change With Temperature
: The
capacitance change with temperature shall not exceed
the following percentage of the capacitance measured
at + 25
°
C: at
6.
Dissipation Factor:
The dissipation factor, determined
from the expression 2
π
fRC, shall not exceed values listed
in the Standard Ratings Table.
6.1
Measurements shall be made by the bridge method at,
or referred to, a frequency of 120Hz and a temperature
of + 25
°
C.
7.
Leakage Current:
Capacitors shall be stabilized at the
rated temperature for 30 minutes. Rated voltage shall
be applied to capacitors for 5 minutes using a steady
source of power (such as a regulated power supply) with
1000 ohm resistor connected in series with the capaci-
tor under test to limit the charging current. Leakage cur-
rent shall then be measured.
7.1 At + 25
°
C,
the leakage current shall not exceed the value
listed in the Standard Ratings Table.
7.2 At + 85
°
C,
the leakage current shall not exceed 10 times
the value listed in the Standard Ratings Table.
7.3 At + 105
°
C,
the leakage current , while measured at 0.8
times the rated voltage, shall not exceed 10 times the
value listed in the Standard Ratings Table.
8.
ESR
8.1 ESR (Equivalent Series Resistance)
shall not exceed
the values listed in the Ratings Table. Measurement shall
be made by the bridge method at a frequency of 100kHz
and a temperature of + 25
°
C.
9.
Life Test:
Capacitors shall withstand rated DC voltage
applied at + 85
°
C for 1000 hours.
9.1
Following the life test, the dissipation factor shall not
exceed 1.5 times the initial requirement; the capacitance
change shall not exceed
±
20%; the leakage current shall
not exceed 0.1 CV (3uA).
2.
DC Working Voltage:
The DC working voltage is the
maximum operating voltage for continuous duty at the
rated temperature.
3.
Surge Voltage:
The surge DC rating is the maximum
voltage to which the capacitors may be subjected un-
der any conditions, including transients and peak ripple
at the highest line voltage.
3.1 Surge Voltage Test:
Capacitors shall withstand the
surge voltage applied in series with a 33 ohm
±
5%
resistor at the rate of one-half minute on, one-half minute
off, at + 85
°
C, for 1000 successive test cycles.
3.2
Following the surge voltage test, the dissipation factor
shall meet the initial requirements; the capacitance shall
not have changed more than
±
20%. The leakage cur-
rent shall not exceed 150% of the initial value.
4.
Capacitance Tolerance
: The capacitance of all capaci-
tors shall be within the specified tolerance limits of the
normal rating.
4.1
Capacitance measurements shall be made by means
of polarized capacitance bridge. The polarizing voltage
shall be of such magnitude that there shall be no rever
sal of polarity due to the AC component. The maximum
voltage applied to capacitors during measurement shall
be 2 volts rms at 120Hz at + 25
°
C. If the AC voltage
applied is less than one-half volt rms, no DC bias is re-
quired. Accuracy of the bridge shall be within
±
2%.
+ 85
°
C
+ 105
°
C RATING
WORKING
VOLTAGE
(V)
SURGE
VOLTAGE
(V)
WORKING
VOLTAGE
(V)
SURGE
VOLTAGE
(V)
4.0
6.3
10.0
5.2
8.0
13.0
3.2
5.0
8.0
4.3
6.5
10.4
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| 255D157X06R3D2W045 | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:Organic Polymer, Low ESR, Tantalum Capacitors Commercial, Surface Mount Capacitors for Switch Mode Power Supplies and Converters |
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