LB-303AK Series
LED displays
High efficiency, three-digit numeric
displays
LB-303AK Series
The LB-303AK series were designed to meet
the need for multi-digit numeric displays.
These LED numeric displays use GaAsP on
GaP for the emitting material (with the
exception of green) and are housed in an
epoxy resin package. They are three-digit
displays with a character height of 8.0 mm.
!
!
!
!Features
1) Height of character : 8.0 mm
2) High efficiency in a compact package.
3) Common anode and common cathode
configurations are available for red, orange
and green.
4) The package surface is painted black and
the segments are colored the display color.
!
!
!
!External dimensions
(Units : mm)
1.0
4.0
0.5
(9.2)
3- 0.9
(12.7)
(2.54)
0.5
5.0
0.5
5.0
1.0
8.0
13.0
22.0
7.0
7.0
10
Tolerances are
0.3 unless otherwise noted:
!
!
!
!Selection guide
Red
Orange
Green
LB-303VA
LB-303VK
LB-303DA
LB-303DK
LB-303MA
LB-303MK
Anode
Cathode
Order-based production.
Common
Emitting color
!
!
!
!Pin assignments
Digit 1
D.P1
a
g
d
f
b
e
c
Digit 2
D.P2
a
g
d
f
b
e
c
Digit 3
D.P3
a
g
d
f
b
e
c
Pin No.
+
+
+
+
+
+
+
+
+
+
+
1
2
3
4
5
6
11
10
9
8
7
Segment "c"
Digit 1 Common
Segment "d"
Digit 2 Common
Digit 3 Common
Segment D.P
Segment "b"
Segment "f"
Segment "a"
Segment "e"
Segment "g"
1
2
3
4
5
6
7
8
9
10
11
Function
Pin No.
LB-303AK Series
LED displays
!
!
!
!Internal circuit schematic
(example of common anode)
a
9
b
7
c
1
d
3
e
10
f
8
g
11
D.P
6
5 Dig.3
4 Dig.2
2 Dig.1
!
!
!
!Absolute maximum ratings
(Ta = 25
C)
Parameter
Symbol
Red
Unit
LB-303VA / VK
LB-303DA / DK
LB-303MA / MK
960
40
15
60
3
mW
mW
mA
mA
V
C
C
P
D
P
D
/ seg
I
F
I
FP
V
R
Topr
Tstg
Power dissipation
Power dissipation
Forward current
Peak forward current
Reverse voltage
Operating temperature
Storage temperature
960
40
15
60
3
Orange
Green
1440
60
20
60
3
-
25~
+
75
-
30~
+
85
Pulse width 1ms duty 1 / 5
!
!
!
! Electrical and optical characteristics
(Ta = 25
C)
Parameter
Symbol
Red
Orange
Green
Unit
Conditions
Min.
Typ. Max. Min.
Typ. Max.
2.8
V
A
nm
nm
2.0
2.8
2.0
650
40
100
610
40
100
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Min.
Typ. Max.
2.8
2.1
563
40
100
-
-
-
-
-
-
-
I
F
=
10mA
V
R
=
3V
I
F
=
10mA
I
F
=
10mA
V
F
I
R
P
Forward voltage
Reverse current
Peak wavelength
Spectral line half width
Not designed for radiation resistance.
!
!
!
! Luminous intensity
Unit
Min.
Typ.
Max.
Color
P
Type
Red
Orange
Green
650
610
563
LB-303VA
LB-303VK
LB-303DA
LB-303DK
LB-303MA
LB-303MK
1.4
1.4
4.0
4.0
-
-
mcd
mcd
2.2
6.3
-
mcd
Note : Measured at I
F
= 10mA
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