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CLL022-1204A5-273H7E1 Datasheet(PDF) 10 Page - CITIZEN ELECTRONICS CO., LTD.

Part # CLL022-1204A5-273H7E1
Description  This data sheet is applied to the LED package
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Manufacturer  CITIZEN [CITIZEN ELECTRONICS CO., LTD.]
Direct Link  http://ce.citizen.co.jp/e/index.html
Logo CITIZEN - CITIZEN ELECTRONICS CO., LTD.

CLL022-1204A5-273H7E1 Datasheet(HTML) 10 Page - CITIZEN ELECTRONICS CO., LTD.

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8. Precautions (continued)
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CITILED
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CLL022-1204A5-273H7E1
CITIZEN ELECTRONICS CO.,LTD. JAPAN
DATA SHEET
9/11
(4) Thermal Design
-The thermal design to draw heat away from the LED junction is most critical parameter
for an LED illumination system. High operating temperatures at the LED junction adversely affect
the performance of LED’s light output and lifetime. Therefore the LED junction temperature should
not exceed the absolute maximum rating in LED illumination system.
-The LED junction temperature while operation of LED illumination system depends upon
thermal resistance of internal LED package (Rj-c), outer thermal resistances of LED package,
power loss and ambient temperature. Please take both of the thermal design specifications
and ambient temperature conditions into consideration for the setting of driving conditions.
-For more information, please refer to application note "Thermal Management".
(5) Driving Current
-A constant current is recommended as an applying driving current to this product.
In the case of constant voltage driving, please connect current-limiting resistor to each products in series
and control the driving current to keep under the absolute maximum rating forward current value.
-Electrical transient might apply excess voltage, excess current and reverse voltage to the product(s).
They also affect negative impact on the product(s) therefore please make sure that no excess voltage,
excess current and reverse voltage is applied to the product(s)
when the LED driver is turn-on and/or turn-off.
-For more information, please refer to application note "Driving".
(6) Lighting at a minimum current value
-In a case where the minimum current(IF min) is applied to the product,
some of LED dice in the product might look different in their brightness
due to the individual difference of the LED dice, and they are not failed.
(7) Electrical Safety
-This product is designed and produced according to IEC 62031:2008
(IEC 62031:2008 LED modules for general lighting. Safety specification)
-Dielectric voltage withstand test has been conducted on this product to see any failure
after applying voltage between active pads and aluminum section of the product,
and to pass at least 500V.
-Considering conformity assessment for IEC62031:2008, almost all items of the specification
depend upon your final product of LED illumination system.
Therefore, please confirm with your final product for electrical safety of your product.
As well, the products comply with the criteria of IEC62031:2008 as single LED package.
Ref.CE-P2637 12/13


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