LIGITEK LY25820

RECTANGLE TYPE LED LAMPS
LY25820
DATA SHEET
DOC. NO :
QW0905- LY25820
REV.
:
B
DATE
:
10 - Jan - 2005
LIGITEK ELECTRONICS CO.,LTD.
Property of Ligitek Only
Page 1/4
PART NO. LY25820
Package Dimensions
5.0
2.8
8.0
1.5MAX
12.5MIN
□0.5
TYP
2.3TYP 1.0MIN
+
-
Note : 1.All dimension are in millimeter tolerance is ±0.25mm unless otherwise noted.
2.Specifications are subject to change without notice.
Directivity Radiation
0°
-30°
30°
60°
-60°
100% 75% 50%
25%
0
25% 50% 75% 100%
LIGITEK ELECTRONICS CO.,LTD.
Property of Ligitek Only
Page 2/4
PART NO. LY25820
Absolute Maximum Ratings at Ta=25 ℃
Ratings
Symbol
Parameter
UNIT
Y
Forward Current
IF
20
mA
Peak Forward Current
Duty 1/10@10KHz
IFP
80
mA
Power Dissipation
PD
60
mW
Reverse Current @5V
Ir
10
μA
Operating Temperature
Topr
-40 ~ +85
℃
Storage Temperature
Tstg
-40 ~ +100
℃
Soldering Temperature
Tsol
Max 260 ℃ for 5 sec Max
(2mm from body)
Typical Electrical & Optical Characteristics (Ta=25 ℃)
PART NO
COLOR
MATERIAL
Emitted
LY25820
Forward
Peak Spectral
voltage
wave halfwidth
length △λ nm @ 20mA(V)
λPnm
Lens
GaAsP/GaP Yellow Yellow Diffused
585
35
Luminous
intensity
@10mA(mcd)
Min. Max. Min.
Typ.
1.8
4.5
1.7
Note : 1.The forward voltage data did not including ±0.1V testing tolerance.
2. The luminous intensity data did not including ±15% testing tolerance.
2.6
Viewing
angle
2θ 1/2
(deg)
160
LIGITEK ELECTRONICS CO.,LTD.
Property of Ligitek Only
PART NO. LY25820
Page 3/4
Typical Electro-Optical Characteristics Curve
Y CHIP
Fig.1 Forward current vs. Forward Voltage
Fig.2 Relative Intensity vs. Forward Current
3.0
Relative Intensity
Normalize @20mA
Forward Current(mA)
1000
100
10
1.0
0.1
2.5
2.0
1.5
1.0
0.5
0.0
1.0
2.0
3.0
4.0
5.0
1.0
10
Fig.3 Forward Voltage vs. Temperature
Fig.4 Relative Intensity vs. Temperature
Relative Intensity@20mA
Normalize @25 ℃
Forward Voltage@20mA
Normalize @25 ℃
1.2
1.1
1.0
0.9
0.8
-20
0
20
40
60
80
100
Relative Intensity@20mA
Fig.5 Relative Intensity vs. Wavelength
1.0
0.5
0.0
550
600
650
Wavelength (nm)
3.0
2.5
2.0
1.5
1.0
0.5
0.0
-40
-20
0
20
40
60
Ambient Temperature( ℃)
Ambient Temperature( ℃)
500
1000
Forward Current(mA)
Forward Voltage(V)
-40
100
700
80
100
LIGITEK ELECTRONICS CO.,LTD.
Property of Ligitek Only
Page 4/4
PART NO. LY25820
Reliability Test:
Test Item
Test Condition
Description
Reference
Standard
Operating Life Test
1.Under Room Temperature
2.If=20mA
3.t=1000 hrs (-24hrs, +72hrs)
This test is conducted for the purpose
of detemining the resisance of a part
in electrical and themal stressed.
MIL-STD-750: 1026
MIL-STD-883: 1005
JIS C 7021: B-1
High Temperature
Storage Test
1.Ta=105 ℃±5℃
2.t=1000 hrs (-24hrs, +72hrs)
The purpose of this is the resistance of
the device which is laid under ondition
of hogh temperature for hours.
MIL-STD-883:1008
JIS C 7021: B-10
Low Temperature
Storage Test
1.Ta=-40 ℃±5 ℃
2.t=1000 hrs (-24hrs, +72hrs)
The purpose of this is the resistance
of the device which is laid under
condition of low temperature for hours.
High Temperature
High Humidity Test
1.Ta=65 ℃±5 ℃
2.RH=90 %~95%
3.t=240hrs ±2hrs
The purpose of this test is the resistance
of the device under tropical for hous.
1.Ta=105 ℃±5℃&-40 ℃±5℃
(10min) (10min)
2.total 10 cycles
The purpose of this is the resistance of
the device to sudden extreme changes
in high and low temperature.
MIL-STD-202: 107D
MIL-STD-750: 1051
MIL-STD-883: 1011
Solder Resistance
Test
1.T.Sol=260 ℃±5 ℃
2.Dwell time= 10 ±1sec.
This test intended to determine the
thermal characteristic resistance
of the device to sudden exposures
at extreme changes in temperature
when soldering the lead wire.
MIL-STD-202: 210A
MIL-STD-750: 2031
JIS C 7021: A-1
Solderability Test
1.T.Sol=230 ℃±5 ℃
2.Dwell time=5 ±1sec
This test intended to see soldering well
performed or not.
MIL-STD-202: 208D
MIL-STD-750: 2026
MIL-STD-883: 2003
JIS C 7021: A-2
Thermal Shock Test
JIS C 7021: B-12
MIL-STD-202:103B
JIS C 7021: B-11