LED displays
zElectrical and optical characteristics (Ta=25°C)
Single – color type
LB1
Parameter Symbol Conditions
Red
Unit
Min. Typ. Max.
Forward voltage
VF IF=20mA − 1.75 2.5
V
Forward current
IR
VR=3V
− − 100
µA
Peak wavelength λP IF=20mA − 660 −
nm
Spectral half-
power bandwidth
∆λ
IF=20mA
−
25
−
nm
Not designed for radiation resistance.
MB
Parameter Symbol Conditions
Green
Unit
Min. Typ. Max.
Forward voltage
VF IF=10mA − 2.1 2.8
V
Forward current
IR
VR=3V
−
− 100
µA
Peak wavelength λP IF=10mA − 563 −
nm
Spectral half-
power bandwidth
∆λ
IF=10mA −
40
−
nm
Not designed for radiation resistance.
Dual – color type
MUB
Parameter Symbol Conditions
Red
Green
Unit
Forward voltage
Reverse current
Min. Typ. Max. Min. Typ. Max.
VF
IF=10mA −
2 2.8 − 2.1 2.8
V
IR
VR=3V
−
− 100 −
− 100 µA
Peak wavelength λP IF=10mA − 635 − − 563 −
nm
Spectral half-
power bandwidth
∆λ
IF=10mA
−
40
−
− 40 −
nm
Not designed for radiation resistance.
zLuminous intensity
Color
Type
Min.
Red
LB1
36
Red
Green
0.22
MUB
0.56
Note : Measured at IF = 10mA (LB1 : IF=20mA)
Typ.
72
0.63
1.6
Max.
−
−
−
Unit
mcd
mcd
mcd
LM-2256 Series
Rev.B
4/4