LA-401DN Series
LED displays
High efficiency, single-digit numeric
displays
LA-401DN Series
The LA-401DN series were designed to meet the need
for small single-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 single-digit displays
with a character height of 10.16 mm.
Features
1) Height of character: 10.16 mm
2) Common anode and common cathode configurations
are available for each color.
3) Each segment has independent pin connections and
static drive is possible.
4) High-efficiency reflectors are used to achieve a bright,
clear display.
5) The package surface is painted black and the
segments are colored the display color.
External Dimensions (Units: mm)
Tolerances are 0.2 unless otherwise noted :
(10.16)
(7.62)
0.25
7.0
3.5Min.
0.5
(2.54)
9.6
10
13.0
10.16
1.0
1.0
5.57
1.0
Selection guide
Emitting color
Common
Anode
Cathode
Red
LA-401VD
LA-401VN
Orange
LA-401DD
LA-401DN
Order-based production.
Green
LA-401MD
LA-401MN
Pin assignments
Pin No.
1
+
2
+
3
+
4
+
5
+
+
10
+
9
+
8
+
7
+
6
D.P
a
d
g
b
f
c
e
Function
Pin No.
1
2
3
4
5
6
7
8
9
10
Common
Segment "f"
Segment "g"
Segment "e"
Segment "d"
Common
D.P
Segment "c"
Segment "b"
Segment "a"
LA-401DN Series
LED displays
Internal circuit schematic (example of common anode)
COM
1,6
a
10
b
9
c
8
d
5
e
4
f
2
g
3
D.P
7
Absolute maximum ratings (Ta=25
C)
Parameter
Symbol
P
D
P
D
/ seg
I
F
I
FP
V
R
Topr
Tstg
Red
LA-401VD / VN
Unit
mW
mW
mA
mA
V
C
C
320
40
15
60
3
Orange
LA-401DD / DN
320
40
15
60
3
Green
LA-401MD / MN
480
60
20
60
3
-
25
+
75
-
30
+
85
Power dissipation
Power dissipation
Forward current
Peak forward current
Reverse voltage
Operating temperature
Storage temperature
Pulse width 1ms duty 1 / 5
Electrical and optical characteristics (Ta=25
C)
Not designed for radiation resistance.
Symbol
Unit
Parameter
Red
Spectral line half
width
-
nm
Peak wavelength
P
-
nm
Reverse current
I
R
-
A
Forward voltage
V
F
Conditions
I
F
=10mA
I
F
=10mA
V
R
=3V
I
F
=10mA
-
Min.
40
650
-
2.0
Typ.
-
-
100
2.8
Max.
Orange
-
-
-
-
Min.
40
610
-
2.0
Typ.
-
-
100
2.8
Max.
Green
-
-
-
-
Min.
40
563
-
2.1
Typ.
-
-
100
2.8
Max.
V
Luminous intensity
Green
P
Unit
Color
Red
650
Type
LA-401VN
LA-401VD
Min.
5.6
Typ.
16
Max.
-
mcd
Orange
610
LA-401DN
LA-401DD
3.6
10
-
mcd
563
LA-401MN
LA-401MD
5.6
16
-
mcd
Note : Measured at I
F
=10mA
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