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SR270K10D Datasheet(PDF) 18 Page - WALSIN TECHNOLOGY CORPORATION

Part No. SR270K10D
Description  High performance transient voltage suppression
Download  24 Pages
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Maker  WALSIN [WALSIN TECHNOLOGY CORPORATION]
Homepage  http://www.passivecomponent.com/
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SR270K10D Datasheet(HTML) 18 Page - WALSIN TECHNOLOGY CORPORATION

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18
Environment and Endurance Rating
Characteristics
Test Method and Specifications
Dry Heat
(High Temperature)
JIS-C-5023
Varistors shall be subjected to 125±2°C, for 1000 Hrs in a
thermostatic bath without load and then stored at room ambient
condition for 1 to 2 Hrs. The variation of varistor voltage should be
less than±5%(
VB/VB=±5%) .
Damp Heat
(Humidity)
JIS-C-5023
Varistors shall be subjected to 40±2°C, 90 to 95%R.H. for 1000 Hrs
in a thermostatic bath without load and then stored at room ambient
condition for 1 to 2 Hrs. The variation of varistor voltage should be
less then ±5%(
VB/VB=±5%) .
Cold
(Low Temperature Storage)
JIS-C-5021
Varistors shall be subjected to -40±2°C for 1000 Hrs in a
thermostatic bath without load and then stored at room ambient
condition for 1 to 2 Hrs. The variation of varistor voltage should be
less than ±5%(
VB/VB=±5%).
Temperature Cycle
(Thermal shock)
JIS-C-5030
The temperature cycling listed below shall be repeated 5 times and
the variation of varistor voltage should be less than ±5% and no
outstanding damage visually.
Dry Heat Load
(High Temperature)
JIS-C-5036
Varistors shall be subjected to 85±2°C for 1000 Hrs in a
thermostatic bath with maximum allowable voltage continuously
applied and then stored at room ambient
condition for 1 to 2 Hrs.
The variation of varistor voltage should be less than
±10%( (
VB/VB=±10%)
Step
Temperature(°C)
Time(minutes)
1
-40±2
30±2
2
Room Temp.
3 max.
3
125±2
30±2
4
Room Temp.
3 max.


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