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DATA SHEET
9. Precautions
9ꢀ1 Handling precaution
(1). Avoid the application of any stress to the encupsulant.
(2). Avoid any contact by a sharp metal nail or other materials with the encupsulant.
encupsulant
(Hatching area)
φ =4.4mm
(3).Pick and Place
ꢀRecommend condition : nozzle inner radius ≧φ4.4mm
ꢀAvoid direct contact to the encapsulant with the nozzle.
NG
Bad ex : narrow nozzle
ex : pick up area
(4). PCB handling
Bending the circuit board with soldered LEDs may cause breakage of LEDs.
Please take care to bow, twist, and warpage the PCB.
Cathode mark
9ꢀ2. Lighting at a low current
A minimum current value of lighting of all dice is 30mA.
When a minimal current is applied, LED dice may look different in their brightness due to
the individual difference of the LED element, and it is not a failed product.
9ꢀ3. Handling of static electricity
ꢀ These products are sensitive to static electricity charge.
Please take measures to prevent any static electricity being produced such as the wearing of a
wristband or antiꢀstatic gloves when handling this product.
ꢀ All devices, equipment and machinery must be properly grounded. It is recommended that precautions
be taken against surge voltage to the equipment that mounts the LEDs.
ꢀ When inspecting the final products in which LEDs were assembled, it is recommended to check
whether the assembled LEDs are damaged by static electricity or not.
ꢀ It is easy to find staticꢀdamaged LEDs by a lightꢀon test.
<Lightꢀon test criterion>
Judgmental criterion
Noꢀlighting die in package is
unacceptable
Condition
IF=6mA/PKG
Symbol
Name
CITILED
CLꢀL400ꢀC1NꢀA
CITIZEN ELECTRONICS CO., LTD. JAPAN
Ref.CE-P1156 05/11
CITIZEN [ CITIZEN ELECTRONICS CO., LTD. ]
