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.
External Dimensions
(Units: mm)
9.6
10°
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.
1.0
5.57
φ1.0
(7.62)
Tolerances are ±0.2 unless otherwise noted :
Selection guide
Emitting color
Red
Common
Anode
LA-401VD
LA-401DD
∗
LA-401DN
∗
LA-401MD
LA-401MN
Orange
Green
LA-401VN
Cathode
∗
Order-based production.
Pin assignments
Pin No.
1
2
3
4
5
+
+
+
+
e
+
d
f
g
c
a
b
+
10
+
9
+
8
+
7
+
6
D.P
Pin No.
1
2
3
4
5
6
7
8
9
10
Function
Common
Segment "f"
Segment "g"
Segment "e"
Segment "d"
Common
D.P
Segment "c"
Segment "b"
Segment "a"
3.5Min.
0.25
7.0
0.5
(2.54)
(10.16)
1.0
10.16
13.0
LA-401DN Series
LED displays
Internal circuit schematic
(example of common anode)
COM
1,6
a b c d e f g D.P
10 9 8 5 4 2 3 7
Absolute maximum ratings
(Ta=25°C)
Parameter
Power dissipation
Power dissipation
Forward current
Peak forward current
Reverse voltage
Operating temperature
Storage temperature
Symbol
P
D
P
D
/ seg
I
F
I
FP
V
R
Topr
Tstg
Red
Orange
Green
Unit
mW
mW
mA
mA
V
˚C
˚C
LA-401VD / VN LA-401DD / DN LA-401MD / MN
320
40
15
60
∗
3
320
40
15
60
∗
3
−25∼+75
−30∼+85
480
60
20
60
∗
3
∗
Pulse width 1ms duty 1 / 5
Electrical and optical characteristics
(Ta=25°C)
Parameter
Forward voltage
Reverse current
Peak wavelength
Spectral line half
width
Symbol Conditions
Min.
V
F
I
R
I
F
=10mA
V
R
=3V
I
F
=10mA
I
F
=10mA
−
−
−
−
Red
Typ. Max. Min.
2.0
−
650
40
2.8
100
−
−
−
−
−
−
Orange
Typ. Max. Min.
2.0
−
610
40
2.8
100
−
−
−
−
−
−
Green
Typ. Max.
2.1
−
563
40
2.8
100
−
−
Unit
V
µA
nm
nm
λ
P
∆λ
Not designed for radiation resistance.
Luminous intensity
Color
Red
λ
P
650
Type
LA-401VD
LA-401VN
Min.
5.6
Typ.
16
Max.
−
−
−
Unit
mcd
Orange
610
LA-401DD
LA-401DN
3.6
10
mcd
Green
563
LA-401MD
LA-401MN
5.6
16
mcd
Note : Measured at I
F
=10mA
FPGA/CPLD
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