xlamp mC-e leds
refloW solderinG characteristics
In testing, Cree has found XLamp MC-E LEDs to be compatible with JEDEC J-STD-020C, using the parameters listed
below. As a general guideline, Cree recommends that users follow the recommended soldering profile provided by the
ꢄꢅnufꢅcturꢂr ꢀf sꢀldꢂr ꢁꢅstꢂ usꢂd.
Note that this general guideline may not apply to all PCB designs and configurations of reflow soldering equipment.
tP
Critical Zone
TL to TP
TP
Ramp-up
TL
tS
Tsmax
Tsmin
Ramp-down
ts
Preheat
25
t 25˚C to Peak
Time
Profile Feature
lꢁꢂꢍ-bꢂꢌꢁꢍ sꢇꢈꢍꢁꢀ
lꢁꢂꢍ-fꢀꢁꢁ sꢇꢈꢍꢁꢀ
aꢃꢂrꢅgꢂ Rꢅꢄꢁ-Uꢁ Rꢅtꢂ (Tsꢄꢅx tꢀ Tꢁ)
3°C/sꢂcꢀnd ꢄꢅx.
100°C
3°C/sꢂcꢀnd ꢄꢅx.
150°C
prꢂhꢂꢅt: Tꢂꢄꢁꢂrꢅturꢂ min (Tsꢄin
prꢂhꢂꢅt: Tꢂꢄꢁꢂrꢅturꢂ mꢅx (Tsꢄꢅx
prꢂhꢂꢅt: Tiꢄꢂ (tsꢄin tꢀ tsꢄꢅx
)
)
150°C
200°C
)
60-120 sꢂcꢀnds
183°C
60-180 sꢂcꢀnds
217°C
Tiꢄꢂ mꢅintꢅinꢂd abꢀꢃꢂ: Tꢂꢄꢁꢂrꢅturꢂ (TL)
Tiꢄꢂ mꢅintꢅinꢂd abꢀꢃꢂ: Tiꢄꢂ (tL)
60-150 sꢂcꢀnds
60-150 sꢂcꢀnds
Peak/Classification Temperature (Tp)
215°C
260°C
Tiꢄꢂ within 5°C ꢀf actuꢅl pꢂꢅk Tꢂꢄꢁꢂrꢅturꢂ (tꢁ)
Rꢅꢄꢁ-Dꢀꢆn Rꢅtꢂ
10-30 sꢂcꢀnds
6°C/sꢂcꢀnd ꢄꢅx.
6 ꢄinutꢂs ꢄꢅx.
20-40 sꢂcꢀnds
6°C/sꢂcꢀnd ꢄꢅx
8 ꢄinutꢂs ꢄꢅx.
Tiꢄꢂ 25°C tꢀ pꢂꢅk Tꢂꢄꢁꢂrꢅturꢂ
Nꢀtꢂ: all tꢂꢄꢁꢂrꢅturꢂs rꢂfꢂr tꢀ tꢀꢁsidꢂ ꢀf thꢂ ꢁꢅckꢅgꢂ, ꢄꢂꢅsurꢂd ꢀn thꢂ ꢁꢅckꢅgꢂ bꢀdy surfꢅcꢂ.
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.
9
CREE [ CREE, INC ]
