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SR270K07D Datasheet(PDF) 18 Page - WALSIN TECHNOLOGY CORPORATION |
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SR270K07D Datasheet(HTML) 18 Page - WALSIN TECHNOLOGY CORPORATION |
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18 / 24 page  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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