LB-502DN Series
LED displays
High efficiency, two-digit numeric displays
LB-502DN Series
The LB-502DN 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 two-digit displays with a
character height of 13.0mm.
Dimensions
(Unit: mm)
25.0
12.7
10˚
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.
1.25
7.4
2−φ1.25
(20.32)
Tolerances are ±0.2 unless otherwise noted :
Selection guide
Emitting color
Red
Common
Anode
LB-502VD
LB-502DD
∗
LB-502DN
∗
LB-502MD
LB-502MN
Orange
Green
LB-502VN
Cathode
∗
Order-based production.
Pin assignments
18 17 16 15 14 13 12 11 10
+
+
+
+
+
+
+
+
+
a1
a2
f1
g1
e1
d1
Digit 1 D.P1
+
+
+
+
2
3
4
5
c1
e2
d2
Digit 2 D.P2
+
+
+
+
6
7
8
9
b1
f2
g2
c2
b2
Pin No.
1
2
3
4
5
6
7
8
9
Function
Segment "e1"
Segment "d1"
Segment "c1"
D.P1
Segment "e2"
Segment "d2"
Segment "g2"
Segment "c2"
D.P2
Pin No.
10
11
12
13
14
15
16
17
18
Function
Segment "b2"
Segment "a2"
Segment "f2"
Digit 2 Common
Digit 1 Common
Segment "b1"
Segment "a1"
Segment "g1"
Segment "f1"
+
Pin No. 1
3.5Min.
0.5
(2.54)
7.0
Rev.C
0.25
(15.24)
13.0
17.5
1/3
LB-502DN Series
LED displays
Internal circuit schematic
(example of common anode)
Dig.1
14
COM
Dig.2
13
COM
a1 b1 c1 d1 e1 f1 g1 D.P1
16 15 3 2 1 18 17 4
a2 b2 c2 d2 e2 f2 g2 D.P2
11 10 8 6 5 12 7 9
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
LB-502VD / VN LB-502DD / DN LB-502MD / MN
960
60
20
60
∗
5
960
60
20
60
∗
5
−25∼+75
−30∼+85
960
60
20
60
∗
5
∗
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
=5V
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
LB-502VD
LB-502VN
Min.
5.6
Typ.
16
Max.
−
−
−
Unit
mcd
Orange
610
LB-502DD
LB-502DN
5.6
16
mcd
Green
563
LB-502MD
LB-502MN
9.0
25
mcd
Note : Measured at I
F
=10mA
Rev.C
2/3
LB-502DN Series
LED displays
Electrical and optical characteristic curves
100
Ta=25°C
10.00
10
Relative Luminous Intensity
Forward Current:I
F
(mA)
LB-502MD
LB-502MN
LB-502VD
LB-502VN
Ta=25°C
1.00
1
0.10
0.1
1
1.5
2
2.5
3
0.01
1
10
Forward Current:I
F
(mA)
100
Forward Voltage:V
F
(V)
Fig.1 Forward Current - Forward Voltage
Fig.2 Relative Luminous Intensity - Forward Current
I
F
=10mA
1.4
1.2
1
0.8
0.6
0.4
-25 -15 -5
I
F
peak Max.
Ratio of Maximum Tolerable peak
I
F
Max.
Current to Maximum Forward Current
1.6
)
(
10
Relative Luminous Intensity
100kHz
300Hz
100Hz
30kHz
10kHz
5
15 25 35 45 55 65 75
1
1
300kHz
10
100
1000
30Hz
3kHz
1kHz
10000
100000
Case Temparature (°C)
Pulse Duration : tw(µs)
Fig.3 Relative Luminous Intensity - Case Temperature
Fig.4 Ratio of Maximum Tolerable Peak Current - Pulse Duration
120%
100%
80%
60%
40%
20%
0%
-25 -15 -5
Forward Current (%)
5 15 25 35 45 55 65 75 85
Ambient Temperature(°C)
Fig.5 Derating
Rev.C
3/3
Notice
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