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TECHNICAL
Additional Notes
1. LED devices may contain Gallium Arsenide (GaAs). GaAs dust and fumes are toxic and harmful if ingested. Do not expose LEDs to
chemical solvents and/or break open LED devices.
2. The light output from UV, blue, and high-power LEDs may cause injury to the human eye when viewed directly.
3. Semiconductor devices can fail or malfunction due to their sensitivity to electrical fluctuation and physical stress. In design
development, please make certain that SunLED products are used within the specified operating conditions as indicated on our most
current product datasheets. The user is responsible to observe and follow all safety measures to avoid situations where the failure or
malfunction of a SunLED product could cause injury, property damage, or the loss of human life.
4. Reference
for complete technical notes.
Storage, MSL, and Humidity Conditions
SMD LEDs are considered moisture sensitive and storage/usage precautions must be taken to prevent damage to the internal materials.
Excess moisture trapped within the component may cause internal vapor pressure during solder reflow leading to possible delamination
of the die or wire bond.
1. Do not store or expose LEDs in an environment where high levels of moisture or corrosive gases are present and keep away from rapid
transitions in ambient temperature.
Recommended storage conditions for each type of LED product as per below:
Product Type
Temperature
Humidity
SMD LED
< 40°C
< 90%RH
Through-hole LED
≤ 30°C
< 60%RH
LED Displays
5°C to 30°C
< 60%RH
Note: Above conditions are based on products in original sealed packaging
2. All SMD LEDs are packaged in moisture barrier bags (MBB) with a label indicating the moisture sensitivity level (MSL).
a. Storage conditions for unopened MBB: Temperature < 40°C, Humidity < 90%RH
b. Floor life for opened MBB follows the corresponding MSL as per below:
IPC/JEDEC J-STD-020
MSL
Floor Life
Time
Conditions
1
Unlimited
≤30°C / 85%RH
2
1 Year
< 60%RH
2a
4 Weeks
< 60%RH
3
168 Hours
≤30°C / 60%RH
4
72 Hours
≤30°C / 60%RH
5
48 Hours
≤30°C / 60%RH
5a
24 Hours
≤30°C / 60%RH
6
Time indicated on label
≤30°C / 60%RH
3. All SMD LEDs are packaged with desiccants and a humidity indicator card (HIC). If the LEDs are not used within the specific floor life or
if the HIC has indicated presence of moisture, the following baking procedure must be taken:
Condition
Temperature
Humidity
Bake Duration
LED inside carrier
60°C ± 3°C
<5% RH
100 hours
LED outside carrier tape
110°C
-
10 hours
STORAGE CONDITIONS
STORAGE CONDITIONS
*Not more than once
