LIGITEK ELECTRONICS CO.,LTD.
Property of Ligitek Only
CYLINDRICAL TYPE LED LAMPS
Pb
Lead-Free Parts
LG4840-PF
DATA SHEET
DOC. NO :
REV
DATE
:
QW0905-LG4840-PF
A
: 07 - Sep. - 2006
LIGITEK ELECTRONICS CO.,LTD.
Property of Ligitek Only
PART NO. LG4840-PF
Page 1/5
3.8
Package Dimensions
3.0
3.8
1.0
1.5MAX
□
0.5
TYP
25.0MIN
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. LG4840-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
℃
)
COLOR
PART NO
MATERIAL
Emitted
LG4840-PF
Peak
wave
length
λ
Pnm
Spectral
Forward
voltage
halfwidth
△λ
nm
@20mA(V)
Luminous
intensity
@10mA(mcd)
Viewing
angle
2
θ
1/2
(deg)
Lens
Green Diffused
Min. Max. Min. Typ.
565
30
1.7
2.6
4.5
8.0
130
GaP
Green
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. LG4840-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
3.5
1000
Forward Current(mA)
100
Relative Intensity
Normalize @20mA
3.0
2.5
2.0
1.5
1.0
0.5
0.0
10
1.0
0.1
1.0
2.0
3.0
4.0
5.0
1.0
10
100
1000
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
1.1
1.0
0.9
0.8
3.0
2.5
2.0
1.5
1.0
0.5
0.0
-40
-20
0
20
40
60
80
100
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. LG4840-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 only)
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.
模拟电子
