Bar Graph Arrays
LTA-1000 Series
Features
Large segments, closely spaced.
Choices of six bright colors-red/bright red/green /
yellow/red orange/high efficiency red.
End stackable.
Fast switching, excellent for multiplexing.
Low power requirement.
Wide viewing angle.
Categorized for luminous intensity.
Easy mounting on P.C. board or socket.
Package Dimensions
Description
The LTA-1000 series are ten rectangular light sources
array displays designed for a variety of applications
where a continuously large, bright source of light is
required. The bright red and green series devices utilize
LED chips which are made from GaP on a transparent
GaP substrate. The yellow, red orange and high effi-
ciency red series devices utilize LED chips which are
made from GaAsP on a transparent GaP substrate. The
bright red, green, yellow, and red orange devices have
gray face and white segments. The high efficiency red
devices have red face and red segments.
Notes :
All dimensions are in millimeters (inches).
Tolerance: 0.25mm (0.010") unless other-wise noted.
Devices
Part No. LTL-
Bright Red
1000P
Green
1000G
Yellow
1000Y
Red
Orange
1000E
Hi-Eff.
Red
1000HR
Description
Universal, Ten Rectangular Bar
Pin Connection
Pin No.
1
2
3
4
5
6
7
8
9
10
Internal Circuit Diagram
Pin No.
11
12
13
14
15
16
17
18
19
20
Connection
Anode A
Anode B
Anode C
Anode D
Anode E
Anode F
Anode G
Anode H
Anode J
Anode K
Connection
Cathode K
Cathode J
Cathode H
Cathode G
Cathode F
Cathode E
Cathode D
Cathode C
Cathode B
Cathode A
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DISPLAYS
Absolute Maximum Ratings at Ta=25
Parameter
Power Dissipation Per Chip
Peak Forward Current Per Chip
(1/10 Duty Cycle, 0.1ms Pulse Width)
Continuous Forward Current Per Chip
Derating Linear from 25 Per Chip
Reverse Voltage Per Chip
Operating Temperature Range
Storage Temperature Range
Solder Temperature 1/16 Inch Below Seating Plane for 3 Seconds at 260
Bright Red
40
60
15
0.20
5
Green
75
100
25
0.33
5
Red
Yellow Orange
60
80
20
0.27
75
100
25
0.33
Hi. Eff. Red
75
100
25
0.33
5
Unit
mW
mA
mA
mA/
V
5
5
-35 to +85
-35
to +85
Electrical/Optical Characteristics at Ta=25
LTA-1000P
Parameter
Average Luminous Intensity
Peak Emission Wavelength
Spectral Line Half-Width
Dominant Wavelength
Forward Voltage, any Chip
Reverse Current, any Chip
Luminous Intensity Matching Ratio
d
V
F
I
R
I
V
-m
Symbol
I
V
P
Min.
210
Typ.
700
697
90
657
2.1
Max.
Unit
cd
nm
nm
nm
Test
Condition
I
F
=10mA
I
F
=20mA
I
F
=20mA
I
F
=20mA
I
F
=20mA
V
R
=5V
I
F
=10mA
2.6
100
2:1
V
A
LTA-1000G
Parameter
Average Luminous Intensity
Peak Emission Wavelength
Spectral Line Half-Width
Dominant Wavelength
Forward Voltage, any Chip
Reverse Current, any Chip
Luminous Intensity Matching Ratio
d
V
F
I
R
I
V
-m
Symbol
I
V
P
Min.
540
Typ.
2000
565
30
569
2.1
Max.
Unit
cd
nm
nm
nm
Test
Condition
I
F
=10mA
I
F
=20mA
I
F
=20mA
I
F
=20mA
I
F
=20mA
V
R
=5V
I
F
=10mA
2.6
100
2:1
V
A
LTA-1000Y
Parameter
Average Luminous Intensity
Peak Emission Wavelength
Spectral Line Half-Width
Dominant Wavelength
Forward Voltage, any Chip
Reverse Current, any Chip
Luminous Intensity Matching Ratio
d
V
F
I
R
I
V
-m
Symbol
I
V
P
Min.
540
Typ.
2000
585
35
588
2.1
Max.
Unit
cd
nm
nm
nm
Test
Condition
I
F
=10mA
I
F
=20mA
I
F
=20mA
I
F
=20mA
I
F
=20mA
V
R
=5V
I
F
=10mA
2.6
100
2:1
V
A
9-42
LTA-1000E
Parameter
Average Luminous Intensity
Peak Emission Wavelength
Spectral Line Half-Width
Dominant Wavelength
Forward Voltage, any Chip
Reverse Current, any Chip
Luminous Intensity Matching Ratio
d
V
F
I
R
I
V
-m
Symbol
I
V
P
Min.
540
Typ.
2000
630
40
621
2.0
Max.
Unit
cd
nm
nm
nm
Test
Condition
I
F
=10mA
I
F
=20mA
I
F
=20mA
I
F
=20mA
I
F
=20mA
V
R
=5V
I
F
=10mA
2.6
100
2:1
V
A
LTA-1000HR
Parameter
Average Luminous Intensity
Peak Emission Wavelength
Spectral Line Half-Width
Dominant Wavelength
Forward Voltage, any Chip
Reverse Current, any Chip
Luminous Intensity Matching Ratio
d
V
F
I
R
I
V
-m
Symbol
I
V
P
Min.
540
Typ.
2000
635
40
623
2.0
Max.
Unit
cd
nm
nm
nm
Test
Condition
I
F
=10mA
I
F
=20mA
I
F
=20mA
I
F
=20mA
I
F
=20mA
V
R
=5V
I
F
=10mA
2.6
100
2:1
V
A
Notes: 1.Clean only in water, isopropanol,ethanol,freon TF (or equivalent).
2.Luminous intensity is measured with a light sensor and filter combination that approximates the CIE
(Commision Internationale De L’Eclairage)eye-response curve.
9-43
DISPLAYS
Typical Electrical/Optical Characteristic Curves
(25 Ambient Temperature Unless Otherwise Noted)
9-44
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