Reflow Soldering Guidelines
tp
Tp
Critical Zone
L to Tp
Ramp-up
T
TL
tL
Tsmax
Tsmin
Ramp-down
ts
Preheat Area
25
Time 25ºC to Peak
JEDEC J-STD-020D
Time
Figure 10. Visualization of the acceptable reflow temperature profile as specified in Table 9.
Table 9. Reflow profile characteristics for LUXEON MX.
PROFILE FEATURE
Preheat Minimum Temperature (Tsmin
Preheat Maximum Temperature (Tsmax
LEAD-FREE ASSEMBLY
)
150°C
200°C
)
Preheat Time (tsmin to tsmax
)
60 to 120 seconds
3°C / second maximum
217°C
Ramp-Up Rate (TL to Tp)
Liquidus Temperature (TL)
Time Maintained Above Temperature TL (tL)
Peak / Classification Temperature (Tp)
Time Within 5°C of Actual Temperature (tp)
Ramp-Down Rate (Tp to TL)
60 to 150 seconds
250°C
20 to 40 seconds
6°C / second maximum
8 minutes maximum
Time 25°C to Peak Temperature
JEDEC Moisture Sensitivity
Table 10ꢀ Moisture sensitivity levels for LUXEON MXꢀ
FLOOR LIFE
SOAK REQUIREMENTS STANDARD
LEVEL
TIME
CONDITIONS
TIME
CONDITIONS
1
Unlimited
≤30°C / 85% RH
168 Hours +5 / -0
85°C / 85% RH
DS179 LUXEON MX Product Datasheet 2017314 ©2017 Lumileds Holding B.V. All rights reserved.
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