Reliability Test

1.
High temperature operation
The sample shall be free form defects after it has been allowed to stand at 50 Celsius for 240 hours under driving conditions.
     2.
Low temperature operation
The sample shall be free form defects after it has been allowed to stand at 0 Celsius for 240 hours under driving conditions.
     3.
High temperature resistance
The sample shall be free form defects after it has been allowed to stand at 60 Celsius for 240 hours under no-load condition, then returned it to normal temperature condition and allowed to stand for 30 minutes.
     4.
Low temperature resistance
The sample shall be free form defects after it has been allowed to stand at -20 Celsius for 240 hours under no-load condition, then returned it to normal temperature condition and allowed to stand for 30 minutes.
     5.
Moisture resistance
The sample shall be free form defects after it has been allowed to stand at 40 Celsius 90-95% RH for 240 hours under no-load condition, then taken it out and dried at normal temperature.
     6.
Thermal shock resistance
The sample shall be free form defects after it has been subjected to the following cycle of operation, repeated 10 times. -20 Celsius for 30 minutes-normal temperature for 5 minutes. +60 Celsius for 30 minutes-normal temperature for 5 minutes . This is one cycle.


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