Directive Characteristics
Package Outline Dimensions
(Unit: mm Tolerance:+/-0.1)
Recommended Soldering Pattern
(Unit:mm)
Absolute Maximum Ratings
● Chip LED ( 1.6x1.0x0.6 )
● Super compact
34 35
Cathode side
0.8
0.6 0.6
0.6
0.8
0.35 0.5
0.4
0
-30
-60
100% 50% 050% 100%
60
30
0
-30
-60
100% 50% 050% 100%
60
30
40
Relative Intensity (%)
0
0
Forward Current(mA)
Relative Intensity vs. Forward Current
302010
40
80
120
160
UR
YG/Y/D/SD
1.5
0
Forward Voltage (V)
1.7 1.9 2.1 2.3 2.5
18
Forward Current (mA)
6
12
24
30
UR SD
D
YG
Y
30
30
0
0
Forward Current(mA)
1262418
Relative Intensity (%)
60
90
120
150 Relative Intensity vs. Forward Current
24
Forward Current(mA)
00612 18 30
Relative Intensity (%)
90
30
60 NG/NB
120
150 Relative Intensity vs. Forward Current
Forward Current (mA)
Forward Voltage (V)
0
2.0 2.82.4 3.2 3.6
NB
NG
6
12
24
18
30
4.0
Forward Current vs. Forward Voltage
Forward Current vs. Forward Voltage
010 20 4030
Forward Current (mA)
5
0
20
15
10
25
30
50
Forward Current vs. Ambient Temperature
35
60 70 80 90 100
GaP/GaAsP
AlInGaP/AlGaAs
Ambient Temperature (OC)
InGaN
6
1.5
0
Forward Voltage (V)
1.7 1.9 2.32.1 2.5
Forward Current (mA)
12
18
24
30
UYG
UY/UD/USD
Forward Current vs. Forward Voltage
Features
LED Die
PCB
Cathode side
Cathode
mark
(0.8)
1.6
1.1
0.6 1.0
Resin
Polarity
0.3
0.3 0.4
Polarity reference for cathode mark is reversed for UR.
Power Dissipation
DC Forward Current
Pulsed Forward Current
Operating Temperature
Storage Temperature
Item Symbol Unit
D
P
F
I
FP*
I
R
V
ST
T
OP
T
mW
mA
mA
V
AllnGaP InGaN
72
30
100
20
80
80
5
-30 to 80
-40 to 85
Reverse Voltage
oC
oC
oC
* 0.1msec pulse, 10% duty cycle.
Electrical / Optical Characteristics OC
Material
Luminous Intensity (mcd)*
I
F
( mA )
Forward Voltage(VF)
*Per NIST standards
Wavelength (nm) typ.
typ. max. P
λλ
D
λ
min. typ.
Viewing
Angle
2_
1
2
Emitting colorPart Number
HT-121YG
HT-121Y
HT-121D
HT-121SD
HT-121UR
HT-121UYG
HT-121UY
HT-121UD
HT-121USD
HT-121NB
HT-121NG
HT-121TW
HT-121NB5
HT-121NG5
HT-121TW5
Yellow Green
Yellow
Amber
Super Bright Orange
Super Bright Red
Ultra Bright Yellow Green
Ultra Bright Yellow
Ultra Bright Amber
Ultra Bright Orange
Blue
Green
White
Blue
Green
White
GaP
GaAsP
GaAsP
GaAsP
AlGaAs
AllnGaP
AllnGaP
AllnGaP
AllnGaP
lnGaN
lnGaN
lnGaN
lnGaN
lnGaN
lnGaN
2.2
2.1
2.1
2.1
1.8
2.0
1.9
1.9
1.9
3.3
2.8
3.3
2.8
3.3
2.8
2.6
2.6
2.6
2.6
2.2
2.4
2.4
2.4
2.4
3.9
3.15
3.9
3.15
3.9
3.15
573
590
608
629
643
573
589
605
622
470
472
527
529
x=0.29
y=0.31
x=0.29
y=0.32
x=140
y=120
x=140
y=120
x=140
y=120
x=140
y=120
x=140
y=120
x=140
y=120
x=140
y=120
x=140
y=120
x=140
y=120
x=140
y=120
x=140
y=120
x=140
y=120
x=140
y=120
x=140
y=120
x=140
y=120
568
589
610
642
660
574
593
609
636
468
470
520
522
-
-
30
35
35
35
20
20
15
17
17
40
40
40
40
-
-
9
5.6
5.6
3.6
9
36
56
56
56
36
9
63
25
90
40
16
9
9
9
20
90
120
120
140
60
26
130
50
180
70
20
20
20
20
20
20
20
20
20
20
20
20
5
5
5
HT-121 Series
Side View LED(PCB type)
Directive Characteristics
Package Outline Dimensions
(Unit: mm Tolerance:+/-0.1)
Recommended Soldering Pattern
(Unit:mm)
Absolute Maximum Ratings
● Chip LED ( 1.6x1.0x0.6 )
● Super compact
34 35
Cathode side
0.8
0.6 0.6
0.6
0.8
0.35 0.5
0.4
0
-30
-60
100% 50% 0 50% 100%
60
30
0
-30
-60
100% 50% 0 50% 100%
60
30
40
Relative Intensity (%)
0
0
Forward Current(mA)
Relative Intensity vs. Forward Current
302010
40
80
120
160
UR
YG/Y/D/SD
1.5
0
Forward Voltage (V)
1.7 1.9 2.1 2.3 2.5
18
Forward Current (mA)
6
12
24
30
UR SD
D
YG
Y
30
30
0
0
Forward Current(mA)
126 2418
Relative Intensity (%)
60
90
120
150 Relative Intensity vs. Forward Current
24
Forward Current(mA)
00 6 12 18 30
Relative Intensity (%)
90
30
60 NG/NB
120
150 Relative Intensity vs. Forward Current
Forward Current (mA)
Forward Voltage (V)
0
2.0 2.82.4 3.2 3.6
NB
NG
6
12
24
18
30
4.0
Forward Current vs. Forward Voltage
Forward Current vs. Forward Voltage
0 10 20 4030
Forward Current (mA)
5
0
20
15
10
25
30
50
Forward Current vs. Ambient Temperature
35
60 70 80 90 100
GaP/GaAsP
AlInGaP/AlGaAs
Ambient Temperature (OC)
InGaN
6
1.5
0
Forward Voltage (V)
1.7 1.9 2.32.1 2.5
Forward Current (mA)
12
18
24
30
UYG
UY/UD/USD
Forward Current vs. Forward Voltage
Features
LED Die
PCB
Cathode side
Cathode
mark
(0.8)
1.6
1.1
0.6 1.0
Resin
Polarity
0.3
0.3 0.4
Polarity reference for cathode mark is reversed for UR.
Power Dissipation
DC Forward Current
Pulsed Forward Current
Operating Temperature
Storage Temperature
Item Symbol Unit
D
P
F
I
FP*
I
R
V
ST
T
OP
T
mW
mA
mA
V
AllnGaP InGaN
72
30
100
20
80
80
5
-30 to 80
-40 to 85
Reverse Voltage
oC
oC
oC
* 0.1msec pulse, 10% duty cycle.
Electrical / Optical Characteristics OC
Material
Luminous Intensity (mcd)*
I
F
( mA )
Forward Voltage(VF)
*Per NIST standards
Wavelength (nm) typ.
typ. max. P
λ λ
D
λ
min. typ.
Viewing
Angle
2_
1
2
Emitting colorPart Number
HT-121YG
HT-121Y
HT-121D
HT-121SD
HT-121UR
HT-121UYG
HT-121UY
HT-121UD
HT-121USD
HT-121NB
HT-121NG
HT-121TW
HT-121NB5
HT-121NG5
HT-121TW5
Yellow Green
Yellow
Amber
Super Bright Orange
Super Bright Red
Ultra Bright Yellow Green
Ultra Bright Yellow
Ultra Bright Amber
Ultra Bright Orange
Blue
Green
White
Blue
Green
White
GaP
GaAsP
GaAsP
GaAsP
AlGaAs
AllnGaP
AllnGaP
AllnGaP
AllnGaP
lnGaN
lnGaN
lnGaN
lnGaN
lnGaN
lnGaN
2.2
2.1
2.1
2.1
1.8
2.0
1.9
1.9
1.9
3.3
2.8
3.3
2.8
3.3
2.8
2.6
2.6
2.6
2.6
2.2
2.4
2.4
2.4
2.4
3.9
3.15
3.9
3.15
3.9
3.15
573
590
608
629
643
573
589
605
622
470
472
527
529
x=0.29
y=0.31
x=0.29
y=0.32
x=140
y=120
x=140
y=120
x=140
y=120
x=140
y=120
x=140
y=120
x=140
y=120
x=140
y=120
x=140
y=120
x=140
y=120
x=140
y=120
x=140
y=120
x=140
y=120
x=140
y=120
x=140
y=120
x=140
y=120
568
589
610
642
660
574
593
609
636
468
470
520
522
-
-
30
35
35
35
20
20
15
17
17
40
40
40
40
-
-
9
5.6
5.6
3.6
9
36
56
56
56
36
9
63
25
90
40
16
9
9
9
20
90
120
120
140
60
26
130
50
180
70
20
20
20
20
20
20
20
20
20
20
20
20
5
5
5
HT-121 Series
Side View LED(PCB type)
