Document
0.3" Single Digit Numeric LED Displays
LTS-310A Series
Features
0.3 inch (7.62mm) digit height.
Choices of six bright colors-AlGaAs red/bright red/ green/yellow/red orange/high efficiency red.
Low power requirement.
Excellent characters appearance.
Categorized for luminous intensity.
I.C. compatiable.
Easy mounting on P.C. board or socket.
Descriptions
The LTS-310A series are 0.3 inch (7.62mm) height single digit displays. AlGaAs red desplays has gray face and white segments. Bright red displays has black face and red segments. Green and yellow displays have gray face and white segments. Red orange displays have orange face and orange segments. The High efficiency red displays have red face and red segments.
The AlGaAs red seven segment displays are designed for appleications 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 device 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, red orange and high efficiency red series devices utilize LED chips which are made from GaAsP on a transparent GaP substrate.
Package Dimensions
A.LTS-312A/313A/315A
Notes:All dimensions are in millimeters (inches). Tolerance: 0.25mm (0.01") unless otherwise noted.
Devices
AlGaAs Red
312AWC 313AWC 315AWC
Part No.
Bright Red
Green
Yellow
Red Orange
Hi.-Eff Red
312AP 312AG 312AY 312AE 312AHR
313AP 315AP
313AG 315AG
313AY 315AY
313AE 313AHR 315AE 315AHR
Description
Common Anode, Rt. and Lt. Hand Decimal Common Cathode, Rt. Hand Decimal Common Cathode, Rt. Hand Decimal
Package Dimension
A A A
Internal Circuit Diagram
B
C
D
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DISPLAYS
Pin Connection
Pin No.
A.LTS-312A
1. Cathode A 2. Cathode F 3. Common Anode *1 4. No Pin 5. No Pin 6. Cathode L.D.P. 7. Cathode E 8. Cathode D 9. Cathode R.D.P. 10. Cathode C 11. Cathode G 12. No Pin 13. Cathode B 14. Common Anode *1
Notes: 1.Pin 3 & 14 are internally connected. 2.Pin 1 & 6 are internally connected.
Connection
B.LTS-313A
Common Cathode *2 Anode F Anode G Anode E Anode D
Common Cathode *2 Anode D.P. Anode C Anode B Anode A -
3.Pin 4 & 12 are internally connected. 4.Pin 1 & 3 are internally connected.
Internal Circuit Diagrams
A.LTS-312A
B.LTS-313A
C.LTS-315A
Anode F Anode G No Pin Common Cathode *3 No Pin Anode E Anode D Anode C Anode D.P. No Pin No Pin Common Cathode *3 Anode B Anode A
C.LTS-315A
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
AlGaAs Red 75
125
30 0.4 5
Bright Red 40
60
15 0.2 5
Green
Yellow
Red Orange
75 60
75
100 80
100
25 0.33
5
20 0.27
25 0.33
55
-35 to +85
-35 to +85
Solder Temperature 1/16 Inch Below Seating Plane for 3 Seconds at 260
Hi. -Eff. Red
75
100 25 0.33 5
Unit mW mA mA mA/
V
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Electrical/Optical Characteristics at Ta=25
LTS-312AWC/313AWC/315AWC
Parameter
Symbol Min.
Average Luminous Intensity
200 IV
Peak Emission Wavelength Spectral Line Half-Width Dominant Wavelength
P d
Forward Voltage, Per Segment or D.P.
VF
Reverse Current, Per Segment or D.P. Luminous Intensity Matching Ratio
LTS-312AP/313AP/315AP
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 LTS-312AG/313AG/315AG
Parameter
Average Luminous Intensity Peak Emission Wavelength Spectral Line Half-Width Dominant Wavelength Forward Voltage, Per Segment or D.P. Reverse Current, Per Segment Luminous Intensity Matching Ratio LTS-312AY/313AY/315AY
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 LTS-312AE/313AE/315AE
Parameter
9-122
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
IR IV-m
Symbol
IV P
Min. 340
d VF IR IV-m
Symbol
IV P
Min. 870
d VF IR IV-m
Symbol
IV P
Min. 870
d VF IR IV-m
Symbol
IV P
Min. 870
d VF IR IV-m
Typ. 600 3100 660 35 638 1.6 1.7 1.8
Typ. 750 697 90 657 2.1
Typ. 2000 565
30 569 2.1
Typ. 2000 585
35 588 2.1
Typ. 2000 630
40 621 2.0
Max.
2.4 100 2.1 Max.
2.6 100 2:1 Max.
2.6 100 2:1 Max.
2.