LIGITEK ELECTRONICS CO.,LTD.
Property of Ligitek Only
PART NO. L20URF9653S-50D-AM
Page 3/5
Typical Electro-Optical Characteristics Curve
20URF(S) CHIP
Fig.1 Forward current vs. Forward Voltage
Fig.2 Relative Intensity vs. Forward Current
Forward Current(mA)
400
25
Relative Intensity
Normalize @20mA
0
0.5
1.0
1.5
2.0
2.5
3.0
300
200
20
15
10
5.0
0
0
500
1000
100
0
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
℃
-20
1.04
1.02
1.00
0.98
0.96
0.94
-40
0
20
40
60
80
100
1.4
1.2
1.0
0.8
0.6
0.4
0.2
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
550
600
650
700
Wavelength (nm)
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