TYPE
SMV0402E
□□□□□□□□
RR
MODEL
CITATION
SUBJECT
Reliability
DATE
REV.
PAGE
4/9
Feb. 13, 2009
C01
3. ENVIRONMENTAL CHARACTERISTICS
No.
3.1
Characteristic
High Temperature
Storage
Test method and description
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﹪.
The temperature cycle of specified
temperature shall be repeated five times
and then stored at room temperature and
change of varistor voltage shall be within
10﹪and mechanical damage shall be
High Temperature
Load
Step
1
2
3
4
Temperature
-40±3℃
Room Temperature
125±2℃
Room Temperature
Period
30Min±3
1~2 hours
30Min±3
1~2 hours
3.2
Temperature Cycle humidity for one or two hours. The
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﹪.
The specimen should be subjected to 40 ± 2℃, 90 to 95%RH environment, and the
3.3
3.4
Damp Heat Load/
Humidity Load
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%.
The specimen should be subjected to -40 ± 2℃, without load for 500 hours and then
3.5
Low Temperature
Storage
stored at room temperature for one or two hours. The change of varistor voltage shall be
within 10﹪
4. TECHNICAL TERM
No.
4.1
4.2
4.3
Item
Operating Temperature
Range
Storage Temperature
Range
Transient Response
Time
Specifications
-40℃ to +85℃
-40℃ to +125℃
< 50 ns
Description
Operating temperature range without derating.
Storage temperature range without voltage applied.
Time lag between application of surge and varistor's
"turn-on" conduction action.
CERAMATE [ CERAMATE TECHNICAL ]
