Rohm LA-501MD High efficiency, single-digit numeric display Datasheet

High efficiency, single-digit numeric displays
LA-501DN Series
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.
Dimensions (Unit : mm)
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.
12.5
φ1.25
(15.24)
0.25
1.25
13.0
17.5
1.25
10°
0.5
(2.54)
(10.16)
3.5Min.
7.0
7.4
Tolerances are ±0.2 unless otherwise noted:
Selection guide
Emitting color
Red
Green
Common
Anode
LA-501VD
LA-501MD
Cathode
LA-501VN
LA-501MN
Pin assignments
Pin No.
10 9
8
7
6
+ + + + +
a
f
b
g
e
c
d
D.P
+ + + + +
Pin No. 1
2
3
4
5
1
2
3
4
5
6
7
8
9
10
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c 2011 ROHM Co., Ltd. All rights reserved.
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Function
Segment "e"
Segment "d"
Common
Segment "c"
D.P
Segment "b"
Segment "a"
Common
Segment "f"
Segment "g"
1/3
2011.04 - Rev.B
LA-501DN Series
Data Sheet
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
Green
Unit
LA-501VD / VN LA-501MD / MN
Power dissipation
PD
480
480
mW
Power dissipation
PD / seg
60
60
mW
20
60∗
mA
Forward current
IF
20
Peak forward current
IFP
60∗
VR
5
Reverse voltage
mA
5
V
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
Green
Typ. Max. Min.
Typ. Max.
Unit
IF = 10mA
−
2.0
2.8
−
2.1
2.8
−
100
−
−
100
μA
V
Reverse current
IR
VR = 5V
−
Peak wavelength
λP
IF = 10mA
−
650
−
−
563
−
nm
Spectral line half width
Δλ
IF = 10mA
−
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
LA-501VN
Green
563
LA-501MD
LA-501MN
Note : Measured at IF = 10 mA
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c 2011 ROHM Co., Ltd. All rights reserved.
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2/3
2011.04 - Rev.B
LA-501DN Series
Data Sheet
Electrical and optical characteristic curves
Ta=25°C
10.00
LA-501MD
LA-501MN
LA-501VD
LA-501VN
Relative Luminous Intensity
10
1
0.1
1
1.5
2
2.5
3
Ta=25°C
1.00
0.10
0.01
1
10
Forward Voltage:VF(V)
Fig.1 Forward Current - Forward Voltage
)
Fig.2 Relative Luminous Intensity - Forward Current
IF peak Max.
Ratio of Maximum Tolerable peak
IF Max.
Current to Maximum Forward Current
1.6
IF=10mA
10
0.8
0.6
0.4
-25 -15 -5
5
15 25 35 45 55 65 75
30Hz
100Hz
300Hz
1kHz
10kHz
30kHz
1
300kHz
1.2
100kHz
(
1.4
Relative Luminous Intensity
100
Forward Current:IF(mA)
3kHz
Forward Current:IF(mA)
100
1
1
10
100
1000
10000
100000
Pulse Duration : tw(µs)
Case Temparature (°C)
Fig.4 Ratio of Maximum Tolerable Peak Current - Pulse Duration
Fig.3 Relative Luminous Intensity - Case Temperature
120%
Forward Current (%)
100%
80%
60%
40%
20%
0%
-25 -15 -5
5 15 25 35 45 55 65 75 85
Ambient Temperature(°C)
Fig.5 Derating
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3/3
2011.04 - Rev.B
Notice
Notes
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More detail product informations and catalogs are available, please contact us.
ROHM Customer Support System
http://www.rohm.com/contact/
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© 2011 ROHM Co., Ltd. All rights reserved.
R1120A
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