CLU038-1206C4 Datasheet, PDF (9/15 Pages) CITIZEN ELECTRONICS CO., LTD. – CITILED COB Series Standard Type Ra90 Model

5. Reliability
5-1. Reliability Test
Test Item
Continuous Operation Test
Low Temperature Storage Test
High Temperature Storage Test
Moisture-proof Test
Thermal Shock Test
Test Condition
IF=540mA　Ta=25C (with Al-fin) ×1000hrs
IF=540mA Tj=140C (with Al-fin) ×1000hrs
-40 C × 1000 hours
100 C × 1000 hours
85 C, 85 %RH for 500 hours
-40 C × 30 minutes – 100 C × 30 minutes, 100 cycle
5-2. Failure Criteria
Measuring Item
Forward Voltage
Total Luminous Flux
Symbol
Vf
Φv
Measuring Condition
If=540mA
If=540mA
U defines the upper limit of the specified characteristics. S defines the initial value.
( Tc=25C )
Failure Criteria
>U × 1.1
<S × 0.85
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-P3538 02/16