0.28" Seven-Segment
Numeric LED Display
LTS-2X01A
LTD-2000 Series
LTC-2000
Features
0.28 inch (7.0mm) digit height
Choices of five bright colors-AlGaAs red/bright red/green/yellow/red orange.
Low power requirement.
Excellent characters appearance.
Categorized for luminous intensity.
I.C. compatiable.
Easy mounting on P.C. board or socket.
Descriptions
The LTS-2X01A, LTD-2000, LTC-2000 series are 0.28 inch (7.0mm) height single, dual triple and quadruple digit
displays.
The AlGaAs red seven segment displys are designed for applications requiring low power consumption. They are
tested and selected for the excellent low current characteristics to ensure that the segments are matched at low
current. Drive current as low as 1 mA per segment is available.
The AlGaAs red series devices utilize LED chips which are made from AlGaAs on a non-transparent GaAs
substrate. The bright red and green series devices utilize LED chips which are made from GaP on a transparent
GaPsubstrate. The yellow and red orange series devices utilize LED chips which are made from GaAsP on a
transparent GaP substrate. All devices have gray face and white segments.
Devices
Part No.
AlGaAs Red
LTS-2301AWC
LTS-2801AWC
LTD-2601WC
LTD-2701WC
LTC-2621WC
LTC-2721WC
LTC-2623WC
LTC-2723WC
Bright
Red
2301AP
2801AP
2601P
2701P
2621P
2721P
2623P
2723P
Red
Green Yellow Orange
2301AG
2801AG
2601G
2701G
2621G
2721G
2623G
2723G
2301AY
2801AY
2601Y
2701Y
2621Y
2721Y
2623Y
2723Y
2301AE
2801AE
2601E
2701E
2621E
2721E
2623E
2723E
Description
Common Cathode,
Rt. Hand Decimal
Common Anode,
Rt. Hand Decimal
Duplex Common Anode,
Rt. Hand Decimal
Duplex Common Cathode,
Rt. Hand Decimal
Multiplex Common Anode,
Rt. Hand Decimal
Multiplex Common Cathode,
Rt. Hand Decimal
Multiplex Common Anode,
Rt. Hand Decimal
Multiplex Common Cathode,
Rt. Hand Decimal
Package
Dimension
A
A
B
B
C
C
D
D
Internal
Circuit
Diagram
A
B
C
D
E
F
G
H
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Package Dimensions
A.LTS-2301A/2801A
B.LTD-2601/2701
C.LTC-2621/2721
D.LTC-2623/2723
Notes:All dimensions are in millimeters (inches). Tolerance:
0.25mm (0.01") unless otherwise noted.
Pin Connection
Pin No.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Connection
A.LTS-2301A
Anode E
Anode D
Common Cathode
Anode C
Anode D.P.
Anode B
Anode A
Common Cathode
Anode G
Anode F
B.LTS-2801A
Cathode E
Cathode D
Common Anode
Cathode C
Cathode D.P.
Cathode B
Cathode A
Common Anode
Cathode G
Cathode F
Pin No.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Connection
C.LTD-2601
Cathode E
Cathode D
Cathode C
Cathode G
Cathode D.P.
Common Anode Digit 2
Cathode A
Cathode B
Common Anode Digit 1
Cathode F
D.LTD-2701
Anode E
Anode D
Anode C
Anode G
Anode D.P.
Common Cathode Digit 2
Anode A
Anode B
Common Cathode Digit 1
Anode F
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DISPLAYS
Pin No.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
Connection
E.LTC-2621
Cathode D
Common Anode Digit 1
Cathode D.P.
Cathode E
Common Anode Digit 2
Cathode C
Cathode G
Common Anode Digit 3
No Connection
No Pin
No Pin
Cathode B
Common Anode L1, L2, L3
No Pin
Cathode A
Cathode F
F.LTC-2721
Anode D
Common Cathode Digit 1
Anode D.P.
Anode E
Common Cathode Digit 2
Anode C
Anode G
Common Cathode Digit 3
No Connection
No Pin
No Pin
Anode B
Common Cathode L1, L2, L3
No Pin
Anode A
Anode F
Pin No.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
Connection
G.LTC-2623
Common Anode Digit 1
Cathode C, L3
Cathode D.P.
No Connection
Cathode E
Cathode D
Cathode G
Common Anode Digit 4
No Connection
No Pin
Common Anode Digit 3
Common Anode L1, L2, L3
Cathode A, L1
Common Anode Digit 2
Cathode B, L2
Cathode F
H.LTC-2723
Common Cathode Digit 1
Anode C, L3
Anode D.P.
No Connection
Anode E
Anode D
Anode G
Common Cathode Digit 4
No Connection
No Pin
Common Cathode Digit 3
Common Cathode L1, L2, L3
Anode A, L1
Common Cathode Digit 2
Anode B, L2
Anode F
Internal Circuit Diagrams
A.LTS-2301A
B.LTS-2801A
C.LTD-2601
D.LTD-2701
9-116
E.LTC-2621
F.LTC-2721
G.LTC-2623
H.LTC-2723
Absolute Maximum Rating at Ta=25
Parameter
Power Dissipation Per Segment
Peak Forward Current Per Segment
(1/10 Duty Cycle, 0.1ms Pulse Width)
Continuous Forward Current Per Segment
Derating Linear from 25 Per Segment
Reverse Voltage Per Segment
Operating Temperature Range
Stroage Temperature Range
Solder Temperature 1/16 Inch Below Seating Plane for 3 Seconds at 260
AlGaAs Red
75
125
30
0.4
5
Bright Red
40
60
15
0.2
5
-35
-35
Green
75
100
25
0.33
5
to +85
to +85
Red
Yellow Orange
60
80
20
0.27
5
75
100
25
0.33
5
Unit
mW
mA
mA
mA/
V
Electrical/Optical Characteristics at Ta=25
LTC-2621WC/2721WC/2623WC/2723WC
Parameter
Average Luminous Intensity
Peak Emission Wavelength
Spectral Line Half-Width
Dominant Wavelength
d
V
F
I
R
I
V
-m
Symbol
I
V
P
Min.
200
Typ.
600
3100
660
35
638
1.6
1.7
1.8
Max.
Unit
cd
nm
nm
nm
Tset Condition
I
F
=1mA
I
F
=5mA
I
F
=20mA
I
F
=20mA
I
F
=20mA
I
F
=1mA
I
F
=5mA
I
F
=20mA
V
R
=5V
I
F
=1mA
Forward Voltage, Per Segment
Reverse Current, Per Segment
Luminous Intensity Matching Ratio
2.4
100
2:1
V
A
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DISPLAYS
LTS-2301AP/2801AP/LTD-2601P/2701P/LTC-2621P/2721P/2623P/2723P
Parameter
Average Luminous Intensity
Peak Emission Wavelength
Spectral Line Half-Width
Dominant Wavelength
Forward Voltage, Per Segment or D.P.
Reverse Current, Per Segment or D.P.
Luminous Intensity Matching Ratio
d
V
F
I
R
I
V
-m
Symbol
I
V
P
Min.
320
Typ.
750
697
90
657
2.1
Max.
Unit
cd
nm
nm
nm
Tset 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
LTS-2301AG/2801AG/LTD-2601G/2701G/LTC-2621G/2721G/2623G/2723G
Parameter
Average Luminous Intensity
Peak Emission Wavelength
Spectral Line Half-Width
Dominant Wavelength
Forward Voltage, Per Segment
Reverse Current, Per Segment
Luminous Intensity Matching Ratio
d
V
F
I
R
I
V
-m
Symbol
I
V
P
Min.
800
Typ.
2000
565
30
569
2.1
Max.
Unit
cd
nm
nm
nm
Tset 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
LTS-2301AY/2801AY/LTD-2601Y/2701Y/LTC-2621Y/2721Y/2623Y/2723Y
Parameter
Average Luminous Intensity
Peak Emission Wavelength
Spectral Line Half-Width
Dominant Wavelength
Forward Voltage, Per Segment
Reverse Current, Per Segment
Luminous Intensity Matching Ratio
d
V
F
I
R
I
V
-m
Symbol
I
V
P
Min.
800
Typ.
2000
585
35
588
2.1
Max.
Unit
cd
nm
nm
nm
Tset 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
LTS-2301AE/2801AE/LTD-2601E/2701E/LTC-2621E/2721E/2623E/2723E
Parameter
Average Luminous Intensity
Peak Emission Wavelength
Spectral Line Half-Width
Dominant Wavelength
Forward Voltage, Per Segment
Reverse Current, Per Segment
Luminous Intensity Matching Ratio
d
V
F
I
R
I
V
-m
Symbol
I
V
P
Min.
800
Typ.
2000
630
40
621
2.0
Max.
Unit
cd
nm
nm
nm
Tset 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:Luminous intensity is measured with a light sensor and filter combination that appoximates the CIE (Commision
Internationale De L' Eclairage)eye-response curve.
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