LIGITEK ELECTRONICS CO.,LTD.
Property of Ligitek Only
PART NO. LI42240-PF
Page3/5
Typical Electro-Optical Characteristics Curve
E - I CHIP
Fig.1 Forward current vs. Forward Voltage
1000
Fig.2 Relative Intensity vs. Forward Current
3.0
Forward Current(mA)
100
Relative Intensity
Normalize @20mA
2.0
3.0
4.0
5.0
2.5
2.0
1.5
1.0
0.5
0.0
10
1.0
0.1
1.0
1.0
10
100
1000
Forward Voltage(V)
Fig.3 Forward Voltage vs. Temperature
1.2
Forward Current(mA)
Fig.4 Relative Intensity vs. Temperature
3.0
Forward Voltage@20mA
Normalize @25
℃
Relative Intensity@20mA
Normalize @25
℃
-40
-20
0
20
40
60
80
100
1.1
2.5
2.0
1.5
1.0
0.5
0.0
-40
-20
0
20
40
60
80
100
1.0
0.9
0.8
Ambient Temperature(
℃
)
Ambient Temperature(
℃
)
Fig.5 Relative Intensity vs. Wavelength
Fig.6 Directivity Radiation
Relative Intensity@20mA
1.0
0.5
0.0
550
600
650
700
750
Wavelength (nm)