5. Reliability
5-1. Reliability Test
Test Item
Test Condition
IF=450mAꢀTa=25C (with Al-fin) ×1000hrs
IF=450mA Tj=150C (with Al-fin) ×1000hrs
-40 C × 1000 hours
Continuous Operation Test
Low Temperature Storage Test
High Temperature Storage Test
Moisture-proof Test
100 C × 1000 hours
85 C, 85 %RH for 500 hours
Thermal Shock Test
-40 C × 30 minutes – 100 C × 30 minutes, 100 cycle
5-2. Failure Criteria
( Tc=25C )
Measuring Item
Forward Voltage
Symbol
Measuring Condition
If=450mA
Failure Criteria
Vf
>U × 1.1
<S × 0.85
Total Luminous Flux
Φv
If=450mA
U defines the upper limit of the specified characteristics. S defines the initial value.
Note : Measurement shall be taken between 2 hours and 24 hours, and the test pieces should be
return to the normal ambient conditions after the completion of each test.
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Ref.CE-0050P-201710