Datasheet

LITE-ON TECHNOLOGY CORPORATION
Pr o p e r t y o f L i t e -O n O n l y
Part No. :
LTST-020ZGL
Page : 9 of 10
BNS-OD-C131/A4
ESD-damaged LEDs will exhibit abnormal characteristics such as high reverse leakage current, low forward
voltage, or “ no lightup ” at low currents.
To verify for ESD damage, check for “ lightup ” and Vf of the suspect LEDs at low currents.
The Vf of “ good ” LEDs should be >2.0V@0.1mA for InGaN product
7.1 Reliability Test
Test Item Test Condition Reference Standard Note
Number of
Damaged
Steady State Operating Life
Condition
Ta= 25
o
C, IF=20mA 1000 hrs 0/25 0
High Temperature Storage Ta= 105
o
C 1000 hrs 0/25 0
Low Temperature Storage Ta= -55
o
C 1000 hrs 0/25 0
Temperature Humidity
Storage
Ta= 65
o
C, RH= 90% 1000 hrs
0/25
0
Thermal Cycle
-55
o
C ~25
o
C ~105
o
C~ 25
o
C
30min 5min 30min 5min
100 cycles
0/25
0
Thermal Shock
-40
o
C ~ 85
o
C
10min 10min
100 cycles 0/25 0
Solder Resistance
Tsld=260+/- 5
o
C, 10sec
(Lead Free Solder Profile)
1 time 0/25 0
IR-REFLOW
Tsld=250+/- 5
o
C, 20~40sec
(Lead Free Solder Profile)
3 time 0/25 0
7.2 Criteria for Judging the Damage
Criteria for Judgment
Item Symbol Test Conditions
Min. Max.
Forward Voltage VF IF=20mA -
U.S.L.*) ╳ 1.1
Luminous Intensity IV IF=20mA
U.S.L.**) ╳ 0.7
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