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1812A390KRR Datasheet(PDF) 4 Page - Ceramate Technical

Part # 1812A390KRR
Description  Zinc Oxide
Download  9 Pages
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Manufacturer  CERAMATE [Ceramate Technical]
Direct Link  http://www.ceramate.com.tw
Logo CERAMATE - Ceramate Technical

1812A390KRR Datasheet(HTML) 4 Page - Ceramate Technical

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TYPE
SMV1812A
□□□KRR MODEL
PAGE
4/9
CITATION
DATE
Feb. 13, 2009
SUBJECT
Reliability
REV.
C01
3. ENVIRONMENTAL CHARACTERISTICS
No. Characteristic
Test method and description
3.1
High Temperature
Storage
The specimen shall be subjected to 150 ± 2℃ for 1000 ± 12 hours in a thermostatic bath
without load and then stored at room temperature and humidity for 1 to 2 hours.
The change of varistor voltage shall be within 10﹪.
Step
Temperature
Period
1
-40±3℃
30Min±3
2
Room Temperature
1~2 hours
3
125±2℃
30Min±3
3.2 Temperature Cycle
The temperature cycle of specified
temperature shall be repeated five times
and then stored at room temperature and
humidity for one or two hours. The
change of varistor voltage shall be within
10﹪and mechanical damage shall be
4
Room Temperature
1~2 hours
3.3
High Temperature
Load
After being continuously applied the maximum allowable voltage at 85 ± 2℃ For 1000± 2
hours, the specimen shall be stored at room temperature and humidity for one or two
hours, the change of varistor voltage shall be within 10﹪.
3.4
Damp Heat Load/
Humidity Load
The specimen should be subjected to 40 ± 2℃, 90 to 95%RH environment, and the
maximum allowable voltage applied for 1000 hours, then stored at room temperature
and humidity for one or two hours. The change of varistor voltage shall be within 10%.
3.5
Low Temperature
Storage
The specimen should be subjected to -40 ± 2℃, without load for 500 hours and then
stored at room temperature for one or two hours. The change of varistor voltage shall be
within 10﹪
4. TECHNICAL TERM
No.
Item
Specifications
Description
4.1
Operating Temperature
Range
-40℃ to +85℃
Operating temperature range without derating.
4.2
Storage Temperature
Range
-40℃ to +125℃
Storage temperature range without voltage applied.
4.3
Transient Response
Time
< 50 ns
Time lag between application of surge and varistor's
"turn-on" conduction action.


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