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SPECIFICATIONS
6. Reliability
(1)Details of the tests
Test Item
Room Temperature
Test Condition
Ta=25℃,IF=480mA(Tj=61.5℃)×1000 hours
Operating Life Test
High Temperature
(with Al-fin)
Ta=50℃,IF=480mA(Tj=86.3℃)×1000 hours
Operating Life Test
(with Al-fin)
Low Temperature
-40℃× 1000 hours
Storage Test
High Temperature
Storage Test
100℃× 1000 hours
60±2℃, 90±5%RH for 1000 hours
Moisture proof Test
Thermal Shock Test
-40℃×30minutes - 100℃× 30minutes,100 cycle
(2)Judgment Criteria of Failure for Reliability Test
(Ta=25℃)
Measuring Item
Symbol Measuring Condition Judgment Criteria for Failure
Forward Voltage
Total Luminous Flux
VF
ΦV
IF=480mA
IF=480mA
>U×1.1
<S×0.85
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
returned to the normal ambient conditions after the completion of each test.
CL-L251-MC4L reliability test results will be used for CL-L251-MC4N1.
Approved Checked Drawn
Symbol
Name
CITILED
CL-L251-MC4N1
Drawing No
Description Appro.
Mark
Date
CITIZEN ELECTRONICS CO.,LTD.
Ref.CE-P391 03/09 R1(0409)
CITIZEN [ CITIZEN ELECTRONICS CO., LTD. ]
