xlamp mC-e leds
notes
moisture sensitivity
XLamp mC-e LeDs are shipped in sealed, moisture-barrier bags (mBB) designed for long shelf life. If XLamp mC-e LeDs
are exposed to moist environments after opening the mBB packaging but before soldering, damage to the LeD may oc-
cur during the soldering operation. The following derating table defines the maximum exposure time (in days) for an
XLamp mC-e LeD in the listed humidity and tempera-
ture conditions. LeDs with exposure time longer than
the time specified below must be baked according to
the baking conditions listed here.
temperature
30ºC
25ºC
20ºC
30%
9
12
17
maximum Percent relative humidity
40%
5
7
9
50%
4
5
7
60%
3
4
6
70%
1
2
2
80%
1
1
2
90%
1
1
1
baking conditions
It is not necessary to bake all XLamp mC-e LeDs. only the LeDs that meet all of the following criteria must be baked:
LeDs that have been removed from the original mBB packaging
LeDs that have been exposed to a humid environment longer than listed in the moisture Sensitivity section above
LeDs that have not been soldered
LeDs should be baked at 80ºC for 24 hours. LeDs may be baked on the original reels. Remove LeDs from mBB packaging
before baking. Do not bake parts at temperatures higher than 80ºC. This baking operation resets the exposure time as
defined in the Moisture Sensitivity section above.
storage conditions
XLamp mC-e LeDs that have been removed from original mBB packaging but not soldered yet should be stored in a room
or cabinet that will maintain an atmosphere of 25 ±5ºC and no greater than 10% RH. For LeDs stored in these condi-
tions, storage time does not add to exposure time as defined in the above Moisture Sensitivity section.
rohs compliance
The levels of environmentally sensitive, persistent biologically toxic (pBT), persistent organic pollutants (pop), or other-
wise restricted materials in this product are below the maximum concentration values (also referred to as the threshold
limits) permitted for such substances, or are used in an exempted application, in accordance with eU Directive 2002/95/
eC on the restriction of the use of certain hazardous substances in electrical and electronic equipment (RoHS), as
amended through april 21, 2006.
vision advisory claim
waRNING. Do not look at exposed LeD lamps in operation. eye injury can result. For more information about LeDs and
eye safety, please refer to the Cree LeD eye Safety application Note (http://www.cree.com/products/pdf/XLamp_eye-
Safety.pdf).
Copyright © 2008-2011 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree, the Cree logo and XLamp are registered trade-
marks of Cree, Inc.
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CREE [ CREE, INC ]
