Datasheet
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© 2015 ROHM Co., Ltd. All rights reserved.
Single Digit LED Numeric Display
SIM-013STW1
LA-301 B / L Series
LA-301 B / L series is developed because of the demand for small single digit LED Numeric Display.
Materials of emission are GaAsP on GaP, AlGalnP and GaP. This is the height of a letter 8mm,
single digit LED Numeric Display that is packed by epoxy resin.
lFeatures
1) The height of a letter is 8mm.
2) The light don’t leak from the segment in spite of the small package.
3) The package of surface color is black. Color of segment is colored in emitting color.
4) Each color has anode common and cathode common respectively.
lDimensions (Unit : mm) lPin assignments
1 Segment "a"
2 Segment "f"
3 Segment "g"
4 Segment "e"
5 Segment "d"
6 D.P Cathode
7 D.P Anode
8 Segment "c"
9 Common
Segment "b"
lInternal circuit schematic
lSelection guide
LA-301MB
Cathode
LA-301VL
LA-301AL
LA-301EL
LA-301XL
LA-301ML
Anode
LA-301VB
LA-301AB
LA-301EB
LA-301XB
Pin No.
Function
Green
Common
(High brightness)
(High brightness)
(High brightness)
Emitting color
Red
Red
Orange
Yellow
10
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2017.03 - Rev.D
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Datasheet
LA-301 B / L Series
Power dissipation
Power dissipation
Forward current
Peak forward current
Reverse voltage
Operating temperature
Storage temperature
*1 Pulse width 1ms, duty 1 / 5
*2 Pulse width 0.1ms, duty 1 / 10
lElectrical and optical characteristics (Ta = 25°C)
Forward voltage
Reverse current
Peak wavelength
Spectral line half width
◎ Not designed for radiation resistance.
* Shows the number on the condition of IF=20mA.
lLuminous intensity
Parameter
Red
(High brightness)
Orange
(High brightness)
Yellow
(High brightness)
◎ Condition IF=10mA
mcd
Unit
-
mcd
-
mcd
-
mcd
-
mcd
Max.
-
nm
-
18*
-
-
15*
-
40
-
nm
V
100
-
100
100
-
100
-
100
mA
2.05*
2.8
2.05*
2.6*
-
Unit
(High brightness)
(High brightness)
(High brightness)
Max.
Typ.
Max.
Max.
Typ.
Max.
Typ.
Max.
Yellow
5
-30 to +85
610*
17*
-25 to +75
Orange
LA-301EB / EL
520
65
25
Green
2.6*
2.05*
2.6*
2.1
2.8
-
626*
-
-
589*
-
563
-
Green
(High brightness)
(High brightness)
(High brightness)
LA-301MB / ML
480
60
20
60 *1
LA-301XB / XL
520
65
25
50 *2
5
Parameter
VR =3V
IF=10mA
Red
Red
LA-301AB / AL
lAbsolute maximum ratings (Ta = 25°C)
Typ.
Min.
V
mA
°C
°C
5
Symbol
Unit
mW
mW
PD / seg
PD
IF
mA
LA-301VB / VL
320
40
50 *2
5
Yellow
520
65
25
IFP
VR
Topr
Tstg
Typ.
Typ.
50 *2
Red
Red
Orange
15
60 *1
5
Parameter
IR
lp
Dl
Conditions
IF =10mA
Symbol
VF
2.0
-
650
40
IF=10mA
Red
Green
Type
LA-301VB
LA-301VL
LA-301MB
LA-301ML
lp
650
563
626
LA-301AB
LA-301AL
610
LA-301EB
LA-301EL
589
LA-301XB
LA-301XL
10
3.6
10
3.6
36
90
36
90
36
90
2/4
2017.03 - Rev.D
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© 2015 ROHM Co., Ltd. All rights reserved.
Datasheet
LA-301 B / L Series
lElectrical and optical characteristics curves
Fig.1 Forward Current vs. Forward Voltage
Fig.2 Relative Luminous Intensity
vs. Forward Current
Forward Current : IF [mA]
Relative Luminous Intensity
Fig.3 Relative Luminous Intensity
vs. Case Temperature Fig.4 Ratio of Maximum Tolerable Peak Current
vs. Pulse Duration ( I )
Relative Luminous Intensity
Case Temperature : [°C] Pulse Duration : tw [ms]
Ratio of Maximum Tolerable peak
Current to Maximum Forward Current
Forward Voltage : VF [V] Forward Current : IF [mA]
IF peak Max .
IF Max .
1
10
110 100 1000 10000
20kHz
10kHz
5kHz
2kHz
1kHz
500Hz
200Hz
100Hz
50kHz
LA-301AB
LA-301AL
LA-301EB
LA-301EL
LA-301XB
LA-301XL
3/4
2017.03 - Rev.D
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© 2015 ROHM Co., Ltd. All rights reserved.
Datasheet
LA-301 B / L Series
lElectrical and optical characteristics curves
Fig.5 Ratio of Maximum Tolerable Peak Current
vs. Pulse Duration ( II )
Pulse Duration : tw [ms]
Ratio of Maximum Tolerable peak
Current to Maximum Forward Current IF peak Max .
IF Max .
Fig.7 Derating
Ambient Temperature : Ta [°C]
Forward Current : IF [%]
Fig.6 Ratio of Maximum Tolerable Peak Current
vs. Pulse Duration ( III )
Pulse Duration : tw [ms]
Ratio of Maximum Tolerable peak
Current to Maximum Forward Current IF peak Max .
IF Max .
1
10
110 100 1000 10000
20kHz
10kHz
5kHz
2kHz
1kHz
500Hz
200Hz
100Hz
50kHz
LA-301VB
LA-301VL
1
10
110 100 1000 10000
20kHz
10kHz
5kHz
2kHz
1kHz
500Hz
200Hz
100Hz
50kHz
LA-301MB
LA-301ML
4/4
2017.03 - Rev.D
R1102
A
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© 2015 ROHM Co., Ltd. All rights reserved.
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and verify the latest specifica-
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Therefore, in order to prevent personal injury or fire arising from failure, please take safety
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Examples of application circuits, circuit constants and any other information contained herein are
provided only to illustrate the standard usage and operations of the Products. The peripheral
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The technical information specified herein is intended only to show the typical functions of and
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