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0.8" Single Digit
Numeric LED Display
LTS-3400L Series
Features
0.8 inch (20.32mm) digit height.
Continuous uniform segments.
Choices of five bright colors-AlGaAs red/bright red/green/yellow/red orange.
Low power requirement.
Excellent characters appearance.
High contrast.
Hight brightness.
Wide viewing angle.
Solid state reliability.
Categorized for luminous intensity.
I.C. compatiable.
Easy mounting on P.C. board or socket.
Description
The LTS-3400L series are 0.8 inch (20.32mm) height 7-single digit displays. All devices displays have gray face and white
segments .
The AlGaAs red 7-segment displays are designed for applications requiring low power consumption. They are tested
and selected for their excellent low current characteristics to ensure that the segments are matched at low current.
Driver current as low as 1mA 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 GaP substrate.
The yellow and red orange series devices utilize LED chips which are made from GaAsP on a transparent GaP substrate.
Package Dimensions
A.LTS-3401L/3403L B.LTS-3406L
Notes:All dimensions are in millimeters (inches). Tolerance: 0.25mm (0.01") unless otherwise noted.
Devices
Part No. LTS- Description Package
Dimension Internal
Circuit
Diagram
AlGaAs Red Bright
Red Green Yellow Red
Orange
3401LWC
3403LWC
3406LWC
3401LP
3403LP
3406LP
3401LG
3403LG
3406LG
3401LY
3403LY
3406LY
3401LE
3403LE
3406LE
Common Anode,
Rt. & Lt. Hand Decimal
Common Cathode,
Rt. & Lt. Hand Decimal
Universal, 1Overflow
Rt. & Lt. Hand Decimal
A
A
B
A
B
C
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DISPLAYS
Pin Connection
Pin No. Connection
A.LTS-3401L B.LTS-3403L
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
C.LTS-3406L
No Pin
Cathode A
Cathode F
Common Anode *1
Cathode E
Common Anode *1
Cathode L.D.P.
No Pin
No Pin
Cathode R.D.P.
Cathode D
Common Anode *1
Cathode C
Cathode G
Cathode B
No pin
Common Anode *1
No pin
No Pin
Anode A
Anode F
Common Cathode *1
Anode E
Common Cathode *1
Anode L.D.P.
No Pin
No Pin
Anode R.D.P.
Anode D
Common Cathode *1
Anode C
Anode G
Anode B
No pin
Common Cathode *1
No pin
No Pin
Cathode B *2
Anode H
Cathode H
Cathode G
Cathode J
Anode J
Cathode D.P. *3
No Pin
Anode D.P.
Cathode D.P.*3
Cathode C
Anode C
Anode G
Anode B
No pin
Cathode B *2
No pin
Notes:1.Pin 4 & 6 12 & 17 are internally connect. 2.Pin 2 & 17 are internally connected. 3.Pin 8 & 11 are internally connected.
Internal Circuit Diagrams
A.LTS-3401L B.LTS-3403L C.LTS-3406L
Absolute Maximum Rating at Ta=25
Unit
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
mW
mA
mA
mA/
V
-35 to +85
-35 to +85
Parameter AlGaAs Red Bright Red Green Yellow Red
Orange
75
125
30
0.4
5
40
60
15
0.2
5
75
100
25
0.33
5
60
80
20
0.27
5
75
100
25
0.33
5
Electrical/Optical Characteristics at Ta=25
LTS-3401LWC/3403LWC/3406LWC
Parameter Symbol Min. Typ. Max. Unit Tset Condition
Average Luminous Intensity
Peak Emission Wavelength
Spectral Line Half-Width
Dominant Wavelength
Forward Voltage, Per Segment
Reverse Current, Per Segment
Luminous Intensity Matching Ratio
IV
P
d
VF
IR
IV-m
320 700
3750
660
35
638
1.6
1.7
1.8 2.4
100
2:1
cd
nm
nm
nm
V
A
IF=1mA
IF=5mA
IF=20mA
IF=20mA
IF=20mA
IF=1mA
IF=5mA
IF=20mA
VR=5V
IF=1mA
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LTS-3401/3403/3406LP
LTS-3401/3403/3406LG
Parameter Symbol Min. Typ. Max. Unit Tset Condition
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
IV
P
d
VF
IR
IV-m
320 950
697
90
657
2.1 2.6
100
2:1
cd
nm
nm
nm
VA
IF=10mA
IF=20mA
IF=20mA
IF=20mA
IF=20mA
VR=5V
IF=10mA
Parameter Symbol Min. Typ. Max. Unit Tset Condition
Average Luminous Intensity
Peak Emission Wavelength
Spectral Line Half-Width
Dominant Wavelength
Forward Voltage, Per Segment
Reverse Current, Per Segment
Luminous Intensity Matching Ratio
IV
P
d
VF
IR
IV-m
800 2400
565
30
569
2.1 2.6
100
2:1
cd
nm
nm
nm
VA
IF=10mA
IF=20mA
IF=20mA
IF=20mA
IF=20mA
VR=5V
IF=10mA
LTS-3401/3403/3406LY
Parameter Symbol Min. Typ. Max. Unit Tset Condition
Average Luminous Intensity
Peak Emission Wavelength
Spectral Line Half-Width
Dominant Wavelength
Forward Voltage, Per Segment
Reverse Current, Per Segment
Luminous Intensity Matching Ratio
IV
P
d
VF
IR
IV-m
800 2400
585
35
588
2.1 2.6
100
2:1
cd
nm
nm
nm
VA
IF=10mA
IF=20mA
IF=20mA
IF=20mA
IF=20mA
VR=5V
IF=10mA
LTS-3401/3403/3406LE
Parameter Symbol Min. Typ. Max. Unit Tset Condition
Average Luminous Intensity
Peak Emission Wavelength
Spectral Line Half-Width
Dominant Wavelength
Forward Voltage, Per Segment
Reverse Current, Per Segment
Luminous Intensity Matching Ratio
IV
P
d
VF
IR
IV-m
800 2400
630
40
621
2.0 2.6
100
2:1
cd
nm
nm
nm
VA
IF=10mA
IF=20mA
IF=20mA
IF=20mA
IF=20mA
VR=5V
IF=10mA
Note: 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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DISPLAYS
Typical Electrical/Optical Characteristic Curves
(25 Ambient Temperature Unless Otherwise Noted)
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