Datasheet

7-30
Electrical/Optical Characteristics at Ta=25
Parameter
Luminous Intensity
Viewing Angle
Peak Emission
Wavelength
Dominant
Wavelength
Spectral Line
Half Width
Forward Voltage
Reverse Current
Capacitance
Symbol
IV
2
P
d
VF
IR
C
Part No.
LTL-
4201
4211
4221
4231
4251
4291
Typ.
0.3
0.7
2.5
3.7
2.5
3.7
Min.
0.8
2.5
8.7
12.6
8.7
12.6
40
655
697
635
565
585
630
651
657
623
569
588
621
24
90
40
30
35
40
1.7
2.1
2.0
2.1
2.1
2.0
30
55
20
35
15
20
Max. Unit.
mcd
deg
nm
nm
nm
V
A
pF
Test Condition.
Note 2 (Fig.7)
IF=10 mA
Note 1,4
Note 3
Measurement
@Peak (Fig.1)
V
R=5V
IF=20mA
V
F=0 , f=1MHz
42x1
4201
4211
4221
4231
4251
4291
4201
4211
4221
4231
4251
4291
4201
4211
4221
4231
4251
4291
4201
4211
4221
4231
4251
4291
100
Notes:1.Luminous intensity is measured with a light sensor and filter combination that approximates the CIE eye-
response curve.
2. is the off-axis angle at which the luminous intensity is half the axial luminous intensity.
3.The dominant wavelength, d is derived from the CIE chromaticity diagram and represents the single
wavelength which defines the color of the device.
4.IV needs 15% additionary for guaranteed limits.
2.0
2.6
2.6
2.6
2.6
2.6
42x1
4201
4211
4221
4231
4251
4291