ROHM LA

LA-501DN Series
LED displays
High efficiency, single-digit numeric
displays
LA-501DN Series
!External dimensions (Units : mm)
12.5
0.5
(2.54)
(10.16)
Tolerances are ±0.2 unless otherwise noted:
Emitting color
Red
Orange
Green
LA-501VD
LA-501DD∗
LA-501MD
LA-501VN
LA-501DN∗
LA-501MN
Common
Cathode
∗ Order-based production.
!Pin assignments
10 9
8
7
6
+ + + + +
a
f
b
g
e
c
d
D.P
+ + + + +
Pin No. 1
2
3
4
5
Pin No.
1
2
3
4
5
6
7
8
9
10
(15.24)
7.0
7.4
!Selection guide
Anode
φ1.25
0.25
1.25
!Features
1) Height of character: 13.0mm
2) Common anode and common cathode
configurations are available for each color.
3) High-efficiency reflectors are used to
achieve a bright, clear display.
4) The package surface is painted black and
the segments are colored the display color.
13.0
17.5
1.25
10°
3.5Min.
The LA-501DN series were designed to meet
the need for 13mm 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 13.0mm.
Function
Segment "e"
Segment "d"
Common
Segment "c"
D.P
Segment "b"
Segment "a"
Common
Segment "f"
Segment "g"
LA-501DN Series
LED displays
!Internal circuit schematic (example of common cathode)
COM
3,8
a b c d e f g D.P
7 6 4 2 1 9 10 5
!Absolute maximum ratings (Ta = 25°C)
Parameter
Red
Symbol
Orange
Green
Unit
LA-501VD / VN LA-501DD / DN LA-501MD / MN
Power dissipation
PD
480
480
480
mW
Power dissipation
PD / seg
60
60
60
mW
Forward current
IF
Peak forward current
IFP
20
60∗
20
60∗
20
60∗
mA
Reverse voltage
VR
5
5
5
V
mA
Operating temperature
Topr
−25~+75
°C
Storage temperature
Tstg
−30~+85
°C
∗ Pulse width 1ms duty 1 / 5
! Electrical and optical characteristics (Ta = 25°C)
Red
Symbol Conditions
Parameter
Min.
VF
Forward voltage
IF = 10mA
−
Orange
Typ. Max. Min.
2.0
2.8
−
Green
Typ. Max. Min.
2.0
2.8
−
Typ. Max.
2.1
2.8
Unit
V
Reverse current
IR
VR = 5V
−
−
100
−
−
100
−
−
100
µA
Peak wavelength
λP
IF = 10mA
−
650
−
−
610
−
−
563
−
nm
Spectral line half width
∆λ
IF = 10mA
−
40
−
−
40
−
−
40
−
nm
Not designed for radiation resistance.
! Luminous intensity
Color
Red
λP
650
Type
LA-501VD
Min.
Typ.
Max.
Unit
5.6
16
−
mcd
5.6
16
−
mcd
5.6
16
−
mcd
LA-501VN
Orange
610
LA-501DD
LA-501DN
Green
563
LA-501MD
LA-501MN
Note : Measured at IF = 10 mA