LIGITEK ELECTRONICS CO.,LTD.
Property of Ligitek Only
RECTANGLE TYPE LED LAMPS
Pb
Lead-Free Parts
LG25840-PF
DATA SHEET
DOC. NO :
REV.
DATE
:
:
QW0905- LG25840-PF
A
25 - Mar. - 2008
LIGITEK ELECTRONICS CO.,LTD.
Property of Ligitek Only
PART NO. LG25840-PF
Page 1/5
5.0
2.8
Package Dimensions
8.0
1.5MAX
25.0MIN
□
0.5
TYP
2.54TYP 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
PART NO. LG25840-PF
Page 2/5
Absolute Maximum Ratings at Ta=25
℃
Ratings
Parameter
Symbol
G
Forward Current
Peak Forward Current
Duty 1/10@10KHz
Power Dissipation
Reverse Current @5V
Operating Temperature
Storage Temperature
I
F
I
FP
PD
Ir
T
opr
Tstg
30
120
100
10
-40 ~ +85
-40 ~ +100
mA
mA
mW
UNIT
μ
A
℃
℃
Typical Electrical & Optical Characteristics (Ta=25
℃
)
PART NO
MATERIAL
Emitted
COLOR
Peak
wave
length
λ
Pnm
Forward
Spectral
voltage
halfwidth
△λ
nm
@ 20mA(V)
Luminous
intensity
@10mA(mcd)
Viewing
angle
2
θ
1/2
(deg)
Lens
565
30
Min. Max. Min. Typ.
1.7
2.6
4.5
8.0
150
LG25840-PF
GaP
Green Green Diffused
Note : 1.The forward voltage data did not including
±
0.1V testing tolerance.
2. The luminous intensity data did not including
±
15% testing tolerance.
LIGITEK ELECTRONICS CO.,LTD.
Property of Ligitek Only
PART NO. LG25840-PF
Page 3/5
Typical Electro-Optical Characteristics Curve
G CHIP
Fig.1 Forward current vs. Forward Voltage
Fig.2 Relative Intensity vs. Forward Current
1000
3.5
Forward Current(mA)
100
Relative Intensity
Normalize @20mA
1.0
2.0
3.0
4.0
5.0
3.0
2.5
2.0
1.5
1.0
0.5
0.0
1.0
10
100
1000
10
1.0
0.1
Forward Voltage(V)
Fig.3 Forward Voltage vs. Temperature
Forward Current(mA)
Fig.4 Relative Intensity vs. Temperature
Forward Voltage@20mA
Normalize @25
℃
Relative Intensity@20mA
Normalize @25
℃
-40
-20
0
20
40
60
80
100
1.2
3.0
2.5
2.0
1.5
1.0
0.5
0.0
-40
-20
0
20
40
60
80
100
1.1
1.0
0.9
0.8
Ambient Temperature(
℃
)
Ambient Temperature(
℃
)
Fig.5 Relative Intensity vs. Wavelength
Relative Intensity@20mA
1.0
0.5
0.0
500
550
600
650
Wavelength (nm)
LIGITEK ELECTRONICS CO.,LTD.
Property of Ligitek Only
PART NO. LG25840-PF
Page 4/5
Soldering Condition(Pb-Free)
1.Iron:
Soldering Iron:30W Max
Temperature 350°C Max
Soldering Time:3 Seconds Max(One Time)
Distance:2mm Min(From solder joint to body)
2.Wave Soldering Profile
Dip Soldering
Preheat: 120°C Max
Preheat time: 60seconds Max
Ramp-up
2° C/sec(max)
Ramp-Down:-5°C/sec(max)
Solder Bath:260°C Max
Dipping Time:3 seconds Max
Distance:2mm Min(From solder joint to body)
Temp(° C)
260° C3sec Max
260°
5° /sec
max
120°
2° /sec
max
Preheat
60 Seconds Max
25°
0° 0
50
100
150
Time(sec)
Note: 1.Wave solder should not be made more than one time.
2.You can just only select one of the soldering conditions as above.
