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參數(shù)資料
| 型號(hào)： | BG93822 |
| 元件分類： | 參考電壓二極管 |
| 英文描述： | Low Current Operation at 250 ，Low Reverse Leakage,Low Noise Zener Diode |
| 中文描述： | 250 的低電流運(yùn)算，低反向泄露，低噪聲穩(wěn)壓二極管 |
| 文件頁數(shù)： | 2/2頁 |
| 文件大?。?/td> | 208K |
| 代理商： | BG93822 |
E
LECTRICAL
P
ROPERTIES
If your application does not require electrical insulation
Q-Pad II
or Q-Pad 3
are ideal grease replacement materials.
These materials do not isolate but have excellent thermal
properties.
The most important electrical property in a typical assembly
where a Sil-Pad insulator is used is dielectric strength. In many
cases the dielectric strength of a Sil-Pad will be the determining
factor in the design of the apparatus in which it is to be used.
Here are some general guidelines regarding electrical
properties to consider when selecting a Sil-Pad material;
Q-Pad II and Q-Pad 3 are used when electrical isolation
is not required
Dielectric breakdown voltage is the total voltage that a
dielectric material can withstand. When insulating
electrical components from each other and ground, it is
desirable to use an insulator with a high breakdown voltage
Breakdown voltage decreases as the area of the electrodes
increases. This area effect is more pronounced as the
thickness of the insulator decreases
Breakdown voltage decreases as temperature increases
Breakdown voltage decreases as humidity increases
(SP1750
and SP1950
are less sensitive to moisture)
Breakdown voltage decreases in the presence of partial
discharge
Breakdown voltage decreases as the size of the voltage
source (kVA rating) increases
Breakdown voltage can be decreased by excessive
mechanical stress on the insulator
Dielectric strength, dielectric constant and volume resistivity
should all be taken into consideration when selecting a Sil-Pad
material. If your application requires special electrical
performance please contact the factory for more detailed testing
information.
Breakdown
Voltage
Dielectric
Strength
Dielectric
Constant
Volume
Resistivity
Material
(kV)
(Volts/mil) ( kV/mm)
(Ohm-Metre)
SP400
-.007
5
700
18
5.5
10
11
SP400
-.009
7
800
20
5.5
10
11
SP1000
7
700
18
4.5
10
11
SP2000
12
800
20
4.0
10
11
SPK-4
7
1200
30
5.0
10
12
SPK-6
7
1200
30
4.0
10
12
SPK-10
7
1200
30
3.7
10
12
Test Method
ASTM D 149* ASTM D 149*
*Method A, Type 3 Electrodes
ASTM D 150 ASTM D 257
T
YPICAL
E
LECTRICAL
P
ROPERTIES OF
S
IL
-P
ADS
3
Choosing the right Sil-Pad Starts with the
Mechanical and Electrical Properties
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