
Chip LED Device
(0.3) (0.3)(0.3) (0.3)
3.3
0.9 1.5 0.9
Colored diffusion
2.9
2.9
1.9
0.4
0.6
0.3 0.8
0to0.15
0.4
0.4
0.950.85
(4-R0.2)
(R0.2)
0.16
+0.1
-0.06
1.1
+0.2
-0.1
Pin connections
Unspecified tolerance:±0.2
1 Anode
2 Cathode
1
2
0˚
0
40
20
60
-20˚ +20˚
+40˚
+60˚
+80˚
-40˚
-60˚
-80˚
-30˚
-50˚
+10˚-10˚ +30˚
+50˚
+70˚
+90˚-90˚
-70˚
80
100
Relative luminous intensity(%)
TYP MAX
Model No.
Lens type
Forward voltage
VF(V)
λp(nm)
TYP
I
V(mcd)
TYP
I
F
(mA)
IF
(mA)
IF
(mA)
(MH
Z)
V
R
(V)
I
R(µA)
MAX
C
t(pF)
TYP
∆λ(nm)
TYP
Peak emission wavelength
Luminous intensity
Spectrum radiation bandwidth
Reverse current
Page for
characteristics
diagrams
Terminal capacitance
(Ta=25˚C)
LT1T51A
LT1P51A
LT1D51A
LT1S51A
LT1H51A
LT1E51A
LT1K51A
1.75
1.9
2.0
2.0
1.9
1.95
1.95
2.2
2.3
2.8
2.8
2.5
2.5
2.5
660
695
635
610
585
565
555
20
5
20
20
10
10
10
9.0
1.1
8.4
6.8
3.3
3.6
1.7
20
5
20
20
10
10
10
20
100
35
35
30
30
25
20
5
20
20
10
10
10
10
10
10
10
10
10
10
4
4
4
4
4
4
4
30
55
20
15
35
35
40
1
1
1
1
1
1
1
→
→
→
→
→
→
→
Colored
diffusion
LT1❏51A series
LT1❏51A series
3.3✕2.9mm, 1.1mm Thickness,
Colored Diffusion Chip LED
Devices
■ Outline Dimensions
T type: Polarity faces in the opposite direction.
(Unit : mm) (Ta=25˚C)
■ Radiation Diagram
■ Absolute Maximum Ratings
Derating factor
(mA/˚C)
DC Pulse
0.67
0.40
0.67
0.13
0.67
0.40
0.67
0.40
0.67
0.27
0.67
0.27
0.67
0.27
Reverse voltage
Model No.
LT1T51A
LT1P51A
LT1D51A
LT1S51A
LT1H51A
LT1E51A
LT1K51A
Radiation color
Red(High-luminosity)
Red
Red
Sunset orange
Yellow
Yellow-green
Green
Radiation material
GaAlAs on GaAs
GaP
GaAsP on GaP
GaAsP on GaP
GaAsP on GaP
GaP
GaP
Power dissipation
P
(mW)
66
23
85
85
50
50
50
Forward current
IF
(mA)
30
10
30
30
20
20
20
Peak forward current
IFM
(mA)
50
50
50
50
50
50
50
*1 Duty ratio=1/10, Pulse width=0.1ms
*2 For 3s or less at the temperature of hand soldering. Temperature of reflow soldering is shown on the below page.
■ Electro-optical Characteristics
(Notice) ¡
(Internet) ¡Data for sharp's optoelectronic/power device is provided for internet.(Address http://www.sharp.co.jp/ecg/)
In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP
devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.
VR
(V)
5
5
5
5
5
5
5
Operating temperature
Topr
(˚C)
-25 to +85
-25 to +85
-25 to +85
-25 to +85
-25 to +85
-25 to +85
Storage temperature
Tstg
(˚C)
-25 to +100
-25 to +100
-25 to +100
-25 to +100
-25 to +100
-25 to +100
-25 to +85 -25 to +100
(T
a=25˚C)
Soldering temperature
*3
Tsol
(˚C)
350
350
350
350
350
350
350

LED Lamp Characteristics Diagrams
Note)Characteristics shown in diagrams are typical values. (not assurance value)
PR series
HD series
0
10
20
30
40
50
60
-25 0 25 50 75 85 125100
Peak Forward Current Derating Curve
Ambient temperature Ta(˚C)
Peak forward current IFM(mA)
0
10
20
30
40
50
60
-25 0 25 50 75 85 125100
Forward Current Derating Curve
Ambient temperature Ta(˚C)
Forward current IF(mA)
0.1
0.5
1.0
5.0
10
50
100
1.0 1.2 1.4 1.6 1.8 2.0 2.4 2.62.2
Forward Current vs. Forward Voltage(Note)
Forward voltage VF(V)
Forward current IF(mA)
(Ta=25˚C)
1.0
5.0
10
50
100
500
1000
-20 0 20 40 60 80 120100
Luminous Intensity vs. Ambient Temperature(Note)
Ambient temperature Ta(˚C)
Relative luminous intensity(%)
(Ta=25˚C)
1.0
5.0
2.0
10
20
50
100
200
500
1000
0.1 0.2 0.5 1 2 5 10 20 50
Luminous Intensity vs. Forward Current(Note)
Forward current IF(mA)
Relative luminous intensity(%)
(Ta=25˚C)
1.0
5.0
2.0
10
20
50
100
200
500
1/50 1/20 1/10 1/5 1/2 1
Duty Ratio vs. Peak Forward Current
Duty ratio DR
Peak forward current IFM(mA)
(Ta=25˚C)
0
10
20
30
40
50
60
-25 0 25 50 75 85 125100
Peak Forward Current Derating Curve
Ambient temperature Ta(˚C)
Peak forward current IFM(mA)
0
10
20
30
40
50
60
-25 0 25 50 75 85 125100
Forward Current Derating Curve
Ambient temperature Ta(˚C)
Forward current IF(mA)
0.1
0.5
1.0
5.0
10
50
100
1.0 1.2 1.4 1.6 1.8 2.0 2.4 2.62.2
Forward Current vs. Forward Voltage(Note)
Forward voltage VF(V)
Forward current IF(mA)
(Ta=25˚C)
1.0
5.0
10
50
100
500
1000
-20 0 20 40 60 80 120100
Luminous Intensity vs. Ambient Temperature(Note)
Ambient temperature Ta(˚C)
Relative luminous intensity(%)
(Ta=25˚C)
1.0
5.0
2.0
10
20
50
100
200
500
1000
0.1 0.2 0.5 1 2 5 10 20 50
Luminous Intensity vs. Forward Current(Note)
Forward current IF(mA)
Relative luminous intensity(%)
(Ta=25˚C)
1.0
5.0
2.0
10
20
50
100
200
500
1/50 1/20 1/10 1/5 1/2 1
Duty Ratio vs. Peak Forward Current
Duty ratio DR
Peak forward current IFM(mA)
(Ta=25˚C)
(Notice) ¡
(Internet) ¡Data for sharp's optoelectronic/power device is provided for internet.(Address http://www.sharp.co.jp/ecg/)
In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP
devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.

LED Lamp Characteristics Diagrams
Note)Characteristics shown in diagrams are typical values. (not assurance value)
HS series
HY series
0.5
2
1
3
5
10
20
50
100
1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4
Forward Current vs. Forward Voltage(Note)
Forward voltage VF(V)
Forward current IF(mA)
(Ta=25˚C)
10
20
50
200
100
500
1000
-20 0 20 40 60 10080
Luminous Intensity vs. Ambient Temperature(Note)
Ambient temperature Ta(˚C)
Relative luminous intensity(%)
(IF=20mA)
1
2
5
200
100
20
50
10
500
0.1 0.2 0.5 1 2 5 10 20 50
Luminous Intensity vs. Forward Current(Note)
Forward current IF(mA)
Relative luminous intensity(%)
(Ta=25˚C)
5
10
30
50
100
300
500
1/50 1/20 1/10 1/5 1/2 1
Duty Ratio vs. Peak Forward Current
Duty ratio DR
Peak forward current IF(mA)
(Ta=25˚C)
0
10
20
30
40
50
60
-25 0 25 50 75 85 125100
Peak Forward Current Derating Curve
Ambient temperature Ta(˚C)
Peak forward current IFM(mA)
0
10
20
30
40
50
60
-25 0 25 50 75 85 125100
Peak Forward Current Derating Curve
Ambient temperature Ta(˚C)
Peak forward current IFM(mA)
0
10
20
30
40
50
60
-25 0 25 50 75 85 125100
Forward Current Derating Curve
Ambient temperature Ta(˚C)
Forward current IF(mA)
0
10
20
30
40
50
60
-25 0 25 50 75 85 125100
Forward Current Derating Curve
Ambient temperature Ta(˚C)
Forward current IF(mA)
0.1
0.5
1.0
5.0
10
50
100
1.0 1.2 1.4 1.6 1.8 2.0 2.4 2.62.2
Forward Current vs. Forward Voltage(Note)
Forward voltage VF(V)
Forward current IF(mA)
(Ta=25˚C)
1.0
5.0
10
50
100
500
1000
-20 0 20 40 60 80 120100
Luminous Intensity vs. Ambient Temperature(Note)
Ambient temperature Ta(˚C)
Relative luminous intensity(%)
(Ta=25˚C)
1.0
5.0
2.0
10
20
50
100
200
500
1000
0.1 0.2 0.5 1 2 5 10 20 50
Luminous Intensity vs. Forward Current(Note)
Forward current IF(mA)
Relative luminous intensity(%)
(Ta=25˚C)
1.0
5.0
2.0
10
20
50
100
200
500
1/50 1/20 1/10 1/5 1/2 1
Duty Ratio vs. Peak Forward Current
Duty ratio DR
Peak forward current IFM(mA)
(Ta=25˚C)
(Notice) ¡
(Internet) ¡Data for sharp's optoelectronic/power device is provided for internet.(Address http://www.sharp.co.jp/ecg/)
In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP
devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.
119

LED Lamp Characteristics Diagrams
EG series
0
10
20
30
40
50
60
-25 0 25 50 75 85 125100
Peak Forward Current Derating Curve
Ambient temperature Ta(˚C)
Peak forward current IFM(mA)
0
10
20
30
40
50
60
-25 0 25 50 75 85 125100
Forward Current Derating Curve
Ambient temperature Ta(˚C)
Forward current IF(mA)
0.1
0.5
1.0
5.0
10
50
100
1.0 1.2 1.4 1.6 1.8 2.0 2.4 2.62.2
Forward Current vs. Forward Voltage(Note)
Forward voltage VF(V)
Forward current IF(mA)
(Ta=25˚C)
1.0
5.0
10
50
100
500
1000
-20 0 20 40 60 80 120100
Luminous Intensity vs. Ambient Temperature(Note)
Ambient temperature Ta(˚C)
Relative luminous intensity(%)
(Ta=25˚C)
1.0
5.0
2.0
10
20
50
100
200
500
1000
0.1 0.2 0.5 1 2 5 10 20 50
Luminous Intensity vs. Forward Current(Note)
Forward current IF(mA)
Relative luminous intensity(%)
(Ta=25˚C)
1.0
5.0
2.0
10
20
50
100
200
500
1/50 1/20 1/10 1/5 1/2 1
Duty Ratio vs. Peak Forward Current
Duty ratio DR
Peak forward current IFM(mA)
(Ta=25˚C)
Note)Characteristics shown in diagrams are typical values. (not assurance value)
KG series
0
10
20
30
40
50
60
-25 0 25 50 75 85 125100
Peak Forward Current Derating Curve
Ambient temperature Ta(˚C)
Peak forward current IFM(mA)
0
10
20
30
40
50
60
-25 0 25 50 75 85 125100
Forward Current Derating Curve
Ambient temperature Ta(˚C)
Forward current IF(mA)
0.1
0.5
1.0
5.0
10
50
100
1.0 1.2 1.4 1.6 1.8 2.0 2.4 2.62.2
Forward Current vs. Forward Voltage(Note)
Forward voltage VF(V)
Forward current IF(mA)
(Ta=25˚C)
1.0
5.0
10
50
100
500
1000
-20 0 20 40 60 80 120100
Luminous Intensity vs. Ambient Temperature(Note)
Ambient temperature Ta(˚C)
Relative luminous intensity(%)
(Ta=25˚C)
1.0
5.0
2.0
10
20
50
100
200
500
1000
0.1 0.2 0.5 1 2 5 10 20 50
Luminous Intensity vs. Forward Current(Note)
Forward current IF(mA)
Relative luminous intensity(%)
(Ta=25˚C)
1.0
5.0
2.0
10
20
50
100
200
500
1/50 1/20 1/10 1/5 1/2 1
Duty Ratio vs. Peak Forward Current
Duty ratio DR
Peak forward current IFM(mA)
(Ta=25˚C)
(Notice) ¡
(Internet) ¡Data for sharp's optoelectronic/power device is provided for internet.(Address http://www.sharp.co.jp/ecg/)
In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP
devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.

Note)Characteristics shown in diagrams are typical values. (not assurance value)
TR series
(1F=20mA)
10
20
50
200
100
500
1000
-20 0 20 40 60 10080
Luminous Intensity vs. Ambient Temperature(Note)
Ambient temperature Ta(˚C)
Relative luminous intensity(%)
0.5
2
1
3
5
10
20
50
100
1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4
Forward Current vs. Forward Voltage(Note)
Forward voltage VF(V)
Forward current IF(mA)
(Ta=25˚C)
1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5
Luminous Intensity vs. Forward Current(Note)
Forward current IF(mA)
Relative luminous intensity(%)
(Ta=25˚C)
0
10
20
30
40
50
60
70
-20 0 20 40 60 1008085
Forward Current Derating Curve
Ambient temperature Ta(˚C)
Forward current IF(mA)
0
100
200
300
400
500
600
700
-20 0 20 40 60 10080
Peak Forward Current Derating Curve
Ambient temperature Ta(˚C)
Peak forward current IFM(mA)
1/50 1/20 1/1 0 1/5 1/2 1
Duty Ratio vs. Peak Forward Current
Duty ratio DR
Peak forward current IF(mA)
(Ta=25˚C)
1
2
5
200
100
20
50
10
500
1
2
5
200
100
30
50
10
500
0.1 0.2
0.5
12 51020 50