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| 型号： | DEHR33F821KB3B |
| 厂商： | Murata Electronics North America |
| 文件页数： | 65/84页 |
| 文件大小： | 0K |
| 描述： | CAP CER 820PF 3.15KV 10% RADIAL |
| 标准包装： | 3,000 |
| 系列： | DEH |
| 电容： | 820pF |
| 电压 - 额定： | 3150V（3.15kV） |
| 容差： | ±10% |
| 温度系数： | R |
| 安装类型： | 通孔 |
| 工作温度： | -25°C ~ 125°C |
| 应用： | 通用 |
| 封装/外壳： | 径向 - 圆盘形 |
| 尺寸/尺寸： | 0.472" 直径（12.00mm） |
| 高度 - 座高（最大）： | 0.591"（15.00mm） |
| 引线间隔： | 0.295"（7.50mm） |
| 特点： | 高电压，低耗散因子 |
| 包装： | 散装 |
| 引线型： | 直形 |
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! Note ? Please read rating and ! CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
? This catalog has only typical speci?cations. Therefore, please approve our product speci?cations or transact the approval sheet for product speci?cations before ordering.
C85E.pdf
Apr.7,2014
High Voltage Ceramic Capacitors ! Caution
Continued from the preceding page.
4. Load Reduction and Self-generated Heat During
Application of High-frequency and High-voltage
Due to the low self-heating characteristics of low-
dissipation capacitors, the allowable electric power of
these capacitors is generally much higher than that of B
characteristic capacitors. However, if the self-heating
temperature is 20°C under a high-frequency voltage
whose peak-to-peak value equals the capacitor's rated
voltage, the capacitor's power consumption may exceed
its allowable electric power.
Therefore, when using the DEA/DEC (SL Char.) /DEH
/DES series in a high-frequency and high-voltage circuit
with a frequency of 1kHz or higher, make sure that the
Vp-p values including the DC bias, do not exceed the
applied voltage value specified in Table 1. Also make
sure that the self-heating temperature (the difference
between the capacitor's surface temperature and the
capacitor's ambient temperature) at an ambient
temperature of 25°C does not exceed the value specified
in Table 1.
As shown in Fig. 2, the self-heating temperature
depends on the ambient temperature. Therefore, if you
are not able to set the ambient temperature to
approximately 25°C, please contact our sales
representatives or product engineers.
<Table 1> Allowable Conditions at High frequency
Allowable Conditions
We are offering free software, The Capacitor Selection
Tool: by Voltage Form, which will assist you in selecting a
suitable capacitor.
The software can be downloaded from Murata's Web site
(http://www.murata.com/products/design_support/mmcsv/
index.html).
By inputting capacitance values and applied voltage
waveform of the specific capacitor series, this software
will calculate the capacitor's power consumption and list
suitable capacitors.
When the result of this software is different from the
measurement result of the self-heating temperature on
your side, please contact our sales representatives or
product engineers.
FAILURE TO FOLLOW THE ABOVE CAUTIONS (ITEMS 1
TO 4) MAY RESULT, WORST CASE, IN A SHORT CIRCUIT
AND CAUSE FUMING OR PARTIAL DISPERSION WHEN
THE PRODUCT IS USED.
<Fig. 1> Relationship Between Applied Voltage and
Self-heating Temperature (Allowable Self-heating
Series
Temp.
Char.
DC
Rated
Voltage
at High-frequency *3
Applied Self-heating Temp.
Voltage (Max.) (25°C Ambient Temp.) *1
Capacitor's
Ambient
Temp. *2
Temp. at 25°C Ambient Temp.)
DEH Series R Char. (Rated Voltage: DC1kV to 3.15kV)
25
C
500V
500Vp-p
20°C Max.
1kV
800Vp-p
1000Vp-p
20°C Max.
5°C Max.
20
DEH
R
2kV
1400Vp-p
2000Vp-p
20°C Max.
5°C Max.
15
10
DEA
SL
3.15kV
1kV
2kV
1600Vp-p
3150Vp-p
1000Vp-p
2000Vp-p
20°C Max.
5°C Max.
5°C Max.
-25 to +85°C
5
0
100
Rated Voltage: 1kV 2kV
1000
Applied Voltage (Vp-p)
3.15kV
10000
3.15kV
3150Vp-p
DEC
SL
6.3kV
6300Vp-p
5°C Max.
DES
D
500V
1kV
500Vp-p
800Vp-p
1000Vp-p
15°C Max.
5°C Max.
DES Series D Char. (Rated Voltage: DC1kV)
25
*1 Fig. 1 shows the relationship between the applied voltage and the allowable self-
heating temperature regarding 1 to 3.15kV rated voltage of the DEH series R
characteristic and 1kV rated voltage of the DES series D characteristic.
*2 When the ambient temperature is 85 to 125°C, the applied voltage needs to be
further reduced. If the DEA/DEH/DES series needs to be used at an ambient
temperature of 85 to 125°C, please contact our sales representatives or product
20
15
10
engineers.
*3 Fig. 3 shows reference data on the allowable voltage - frequency characteristics
5
Rated Voltage: DC1kV
for a sine wave voltage.
0
100
1000
10000
Applied Voltage (Vp-p)
Continued on the following page.
63
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