LA-301
B
/
L
Series
LED displays
Rev.B 1/2
Single Digit LED Numeric Display
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, GaP and GaN.
This is the height of a letter 8mm, single digit LED
Numeric Display that is pa cked by epoxy resin.
zFeatures
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 . (Blue color is only
milky w hite)
4) Each color has anode common and cathode common
respectively.
zExternal dimensions (Unit : mm)
10˚
7.0
0.5 0
+0.1
0.25 0
+0.1
11.0
8.0 1.0
φ0.8
(2.0)
(8.0)
(5.3)
5.03.8±0.5
4.0
1.0
Tolerance are ±0.3 unless otherwise noted:
zSelection guide
Anode
Cathode
Emitting color
Common Red
LA-301VB
LA-301VL
Red
(High brightness)
LA-301AB
LA-301AL
Orange
(High brightness)
LA-301EB
LA-301EL
Yellow
(High brightness)
LA-301XB
LA-301XL
Green
LA-301MB
LA-301ML
Blue
LA-301BB
LA-301BL
zPin assignments
Pin No.
1+
2+
3+
4+
5
10
9
8
7
6+
+
+
+
+
+
a
g
d
fb
ec
D.P
FunctionPin No.
1
2
3
4
5
6
7
8
9
10
Segment "a"
Segment "f"
Segment "g"
Segment "e"
Segment "d"
D.P Cathode
D.P Anode
Segment "c"
Common
Segment "b"
zEquivalent circuit (anode common) (cathode common)
COM
97
a
1b
10 c
8d
5e
4f
2g
3D.P
6
COM
97
a
1b
10 c
8d
5e
4f
2g
3D.P
6
LA-301
B
/
L
Series
LED displays
Rev.B 2/2
zA bsolute maximum ratings (Ta=25°C)
Parameter Unit
mW
mW
mA
mA
V
˚C
˚C
Red
LA-301VB / VL
320
40
15
60
5
Green
LA-301MB / ML
480
60
20
60
5
Blue
LA-301BB / BL
336
42
10
50
5
PD
PD
/ seg
IF
IFP
VR
Topr
Tstg −25 to +75
−30 to +85
Power dissipation
Power dissipation
Forward current
Peak forward current
Reverse voltage
Operating temperature
Storage temperature
Symbol
∗1 Pulse width 1ms Duty 1 / 5
∗2 Pulse width 0.1ms Duty 1 / 10
∗1∗2∗2∗2∗1∗2
LA-301AB / AL
520
65
25
50
5
Red
(High brightness)
LA-301EB / EL
520
65
25
50
5
Orange
(High brightness)
LA-301XB / XL
520
65
25
50
5
Yellow
(High brightness)
zElectrical characteristics (Ta=25°C)
Parameter Red
Typ.
Unit
V
µA
nm
nm
2.0
−
650
40
Max.
2.8
100
−
−
V
F
I
R
λ
P
∆λ
Forward voltage
Reverse current
Peak wavelength
Spectral line half width
Symbol
I
F
=10mA
V
R
=3V
I
F
=10mA
I
F
=10mA
Conditions
The products are not radiations resistant.
Typ.
2.05
−
626
18
Max.
2.6
100
−
−
Typ.
2.05
−
610
17
Max.
2.6
100
−
−
Typ.
2.05
−
589
15
Max.
2.6
100
−
−
Typ.
2.1
−
563
40
Max.
2.8
100
−
−
Typ.
3.6
−
470
26
Max.
4.2
100
−
−
∗∗∗
∗∗∗
∗∗ ∗∗ ∗∗
Green Blue
∗ Shows the number on the condition of I
F
=20mA.
Yellow
(High brightness)
Red
(High brightness)
Orange
(High brightness)
zLuminous intensity
λ
P
(nm) UnitColor
650
Type
LA-301VB Min.
3.6
Typ.
10 mcd
626 LA-301AB 36 90 mcd
610 LA-301EB 36 90 mcd
589 LA-301XB 36 90 mcd
563 LA-301MB 3.6 10 mcd
470 LA-301BB
LA-301VL
LA-301AL
LA-301EL
LA-301XL
LA-301ML
LA-301BL 14 56 mcd
Red
Red (High brightness)
Orange (High brightness)
Yellow (High brightness)
Green
Blue
A condition of measurement is I
F
=10mA.
Appendix
Appendix1-Rev1.1
The products listed in this document are designed to be used with ordinary electronic equipment or devices
(such as audio visual equipment, office-automation equipment, communications devices, electrical
appliances and electronic toys).
Should you intend to use these products with equipment or devices which require an extremely high level of
reliability and the malfunction of with would directly endanger human life (such as medical instruments,
transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other
safety devices), please be sure to consult with our sales representative in advance.
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any
means without prior permission of ROHM CO.,LTD.
The contents described herein are subject to change without notice. The specifications for the
product described in this document are for reference only. Upon actual use, therefore, please request
that specifications to be separately delivered.
Application circuit diagrams and circuit constants contained herein are shown as examples of standard
use and operation. Please pay careful attention to the peripheral conditions when designing circuits
and deciding upon circuit constants in the set.
Any data, including, but not limited to application circuit diagrams information, described herein
are intended only as illustrations of such devices and not as the specifications for such devices. ROHM
CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any
third party's intellectual property rights or other proprietary rights, and further, assumes no liability of
whatsoever nature in the event of any such infringement, or arising from or connected with or related
to the use of such devices.
Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or
otherwise dispose of the same, no express or implied right or license to practice or commercially
exploit any intellectual property rights or other proprietary rights owned or controlled by
ROHM CO., LTD. is granted to any such buyer.
Products listed in this document are no antiradiation design.
About Export Control Order in Japan
Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control
Order in Japan.
In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause)
on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.
Table of luminosity rankings
LED displays
1/2
Table of luminosity rankings
LA-101
LA-101
LA-101
LA-101
LA-301
LA-301
LA-301
LA-301
LA-301
LA-301
LA-301
LA-301
LA-301
LA-301
LA-301
LA-301
LA-301
LA-401
LA-401
LA-401
LA-401
LA-401
LA-401
LA-401
LA-401
LA-401
LA-401
LA-401
LA-501
LA-501
LA-501
LA-501
LA-601
LA-601
LA-601
LA-601
LA-601
LA-601
LA-601
LA-601
LA-601
LA-601
LA-601
LA-601
LA-801
LA-801
LA-801
LA-801
V A
V K
M A
M K
A B
A L
E B
E L
X B
X L
B B
B L
V B
V L
M B
M L
A D
A N
E D
E N
X D
X N
B D
B N
V D
V N
M D
M N
V D
V N
M D
M N
A B
A L
E B
E L
X B
X L
B B
B L
V B
V L
M B
M L
V F
V P
M F
M P
M , N , P , Q , R
M , N , P , Q , R
M , N , P , Q , R
M , N , P , Q , R
M , N , P , Q , R
M , N , P , Q , R
K , L , M , N , P
K , L , M , N , P
K , L , M , N , P
K , L , M , N , P
M , N , P , Q , R
M , N , P , Q , R
M , N , P , Q , R
M , N , P , Q , R
M , N , P , Q , R
M , N , P , Q , R
L , M , N , P , Q
L , M , N , P , Q
L , M , N , P , Q
L , M , N , P , Q
L , M , N , P , Q
L , M , N , P , Q
L , M , N , P , Q
L , M , N , P , Q
L , M , N , P , Q
L , M , N , P , Q
L , M , N , P , Q
L , M , N , P , Q
L , M , N , P , Q
L , M , N , P , Q
Q , R , S , T , U
Q , R , S , T , U
Q , R , S , T , U
Q , R , S , T , U
Q , R , S , T , U
Q , R , S , T , U
Q , R , S , T , U
Q , R , S , T , U
Q , R , S , T , U
Q , R , S , T , U
Q , R , S , T , U
Q , R , S , T , U
Q , R , S , T , U
Q , R , S , T , U
Q , R , S , T , U
Q , R , S , T , U
Q , R , S , T , U
Q , R , S , T , U
N , P , Q , R , S
N , P , Q , R , S
N , P , Q , R , S
N , P , Q , R , S
N , P , Q , R , S
N , P , Q , R , S
K , L , M , N , P
K , L , M , N , P
K , L , M , N , P
K , L , M , N , P
K , L , M , N , P
K , L , M , N , P
Product name Rank code
Product name Rank code LB-302 V F
LB-302 V P
LB-302 M F
LB-302 M P
LB-303 V A
LB-303 V K
LB-303 M A
LB-303 M K
LB-402 V D
LB-402 V N
LB-402 M D
LB-402 M N
LB-502 V D
LB-502 V N
LB-502 M D
LB-502 M N
LB-602 A A2
LB-602 A K2
LB-602 E A2
LB-602 E K2
LB-602 X A2
LB-602 X K2
LB-602 B A2
LB-602 B K2
LB-602 V A2
LB-602 V K2
LB-602 M A2
LB-602 M K2
LB-603 V P
LB-603 V F
LB-603 M F
LB-603 M P
LF-301 V A
LF-301 V K
LF-301 M A
LF-301 M K
L , M , N , P , Q
L , M , N , P , Q
L , M , N , P , Q
L , M , N , P , Q
L , M , N , P , Q
L , M , N , P , Q
L , M , N , P , Q
L , M , N , P , Q
Q , R , S , T , U
Q , R , S , T , U
Q , R , S , T , U
Q , R , S , T , U
Q , R , S , T , U
Q , R , S , T , U
N , P , Q , R , S
N , P , Q , R , S
K , L , M , N , P
K , L , M , N , P
J , K , L , M , N
J , K , L , M , N
−
−
−
−
∗ Measured at IF=20mA
∗ Intensity rank at short wavelength(green).
∗ Ranking may change due to improvements in emitters.
Check the data sheeet for a product before using it.
Table of luminosity rankings
LED displays
2/2
Luminous intensity rankings
( Unit : mcd )
D
E
F
G
H
J
K
L
M
N
P
Q
R
S
T
U
V
0.22~0.45
0.36~0.71
0.56~1.1
0.90~1.8
1.4~2.8
2.2~4.5
3.6~7.1
5.6~11
9.0~18
14~28
22~45
36~71
56~110
90~180
140~280
220~450
360~710
Rank code Range
Rankigngs may change due to inprovements in emitters, Check the data sheet for a product before using it.
For more information about rankings, vontact your ROHM repesentative.
Appendix
Appendix1-Rev1.0
The products listed in this document are designed to be used with ordinary electronic equipment or devices
(such as audio visual equipment, office-automation equipment, communications devices, electrical
appliances and electronic toys).
Should you intend to use these products with equipment or devices which require an extremely high level of
reliability and the malfunction of with would directly endanger human life (such as medical instruments,
transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other
safety devices), please be sure to consult with our sales representative in advance.
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any
means without prior permission of ROHM CO.,LTD.
The contents described herein are subject to change without notice. The specifications for the
product described in this document are for reference only. Upon actual use, therefore, please request
that specifications to be separately delivered.
Application circuit diagrams and circuit constants contained herein are shown as examples of standard
use and operation. Please pay careful attention to the peripheral conditions when designing circuits
and deciding upon circuit constants in the set.
Any data, including, but not limited to application circuit diagrams information, described herein
are intended only as illustrations of such devices and not as the specifications for such devices. ROHM
CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any
third party's intellectual property rights or other proprietary rights, and further, assumes no liability of
whatsoever nature in the event of any such infringement, or arising from or connected with or related
to the use of such devices.
Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or
otherwise dispose of the same, no express or implied right or license to practice or commercially
exploit any intellectual property rights or other proprietary rights owned or controlled by
ROHM CO., LTD. is granted to any such buyer.
Products listed in this document use silicon as a basic material.
Products listed in this document are no antiradiation design.
About Export Control Order in Japan
Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control
Order in Japan.
In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause)
on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.
