H
T-1
3
/
4
(5 mm), T-1 (3 mm),
Ultra-Bright LED Lamps
Technical Data
HLMP-3750, -3850, -3950
HLMP-3390, -3490, -3590
HLMP-1340, -1440, -1540
HLMP-D640
HLMP-K640
Features
• Improved Brightness
• Improved Color Performance
• Available in Popular T-1 and
T-1
3
/
4
Packages
• New Sturdy Leads
• IC Compatible/Low Current
Capability
• Reliable and Rugged
• Choice of 3 Bright Colors
High Efficiency Red
High Brightness Yellow
High Performance Green
Applications
• Lighted Switches
• Backlighting Front Panels
• Light Pipe Sources
• Keyboard Indicators
Description
These clear, non-diffused lamps
out-perform conventional LED
lamps. By utilizing new higher
intensity material, we achieve
superior product performance.
The HLMP-3750/-3390/-1340
Series Lamps are Gallium
Arsenide Phosphide on
Gallium Phosphide red light
emitting diodes. The HLMP-3850/
-3490/-1440 Series are Gallium
Arsenide Phosphide on Gallium
Phosphide yellow light emitting
diodes. The HLMP-3950/-3590/
-1540/-D640/-K640 Series Lamps
are Gallium Phosphide green light
emitting diodes.
Axial Luminous Intensity and Viewing Angle @ 25
°
C
Part
Number
HLMP-
3750
3850
3950
D640
[2]
3390
3490
3590
1340
1440
1540
K640
[2]
I
v
(mcd) @ 20 mA DC
Package
Description
T-1
3
/
4
Color
HER
Yellow
Green
Emerald Green
HER
Yellow
Green
HER
Yellow
Green
Emerald Green
Min.
90
96
111
6.7
35
37
40
22
23
27
4.2
Typ.
125
140
140
21
55
55
55
45
45
45
21
2θ
1
/
2
[1]
24°
24°
24°
24°
32°
32°
32°
45°
45°
45°
45°
Package
Outline
A
A
A
D
B
B
B
C
C
C
C
T-1
3
/
4
Low Profile
T-1
Note:
1.
θ
1
/
2
is the typical off-axis angle at which the luminous intensity is half the axial luminous intensity.
2. Please refer to Application Note 1061 for information comparing standard green and emerald green light output degradation.
5964-9290E
1-83
Package Dimensions
5.34 (0.210)
4.83 (0.190)
PACKAGE OUTLINE “A”
HLMP-3750, -3850, -3950
PACKAGE OUTLINE “B”
HLMP-3390, -3490, -3590
PACKAGE OUTLINE “C”
HLMP-1340, -1440, -1540, -K640
NOTES:
1. ALL DIMENSIONS ARE IN MILLIMETERS (INCHES).
2. AN EPOXY MENISCUS MAY EXTEND ABOUT 1 mm (0.40") DOWN THE LEADS.
Absolute Maximum Ratings at T
A
= 25
°
C
Parameter
Peak Forward Current
Average Forward Current
[1]
DC Current
[2]
Transient Forward Current
[3]
(10
µs
Pulse)
Reverse Voltage (I
R
= 100
µA)
LED Junction Temperature
Operating Temperature Range
Storage Temperature Range
Lead Soldering Temperature
[1.6 mm (0.063 in.) from body]
Red
90
25
30
500
5
110
-55 to +100
Yellow
60
20
20
500
5
110
-55 to +100
Green/Emerald Green
90
25
30
500
5
110
-20 to +100
-55 to +100
260°C for 5 seconds
Units
mA
mA
mA
mA
V
°C
°C
Notes:
1. See Figure 2 to establish pulsed operating conditions.
2. For Red and Green series derate linearly from 50°C at 0.5 mA/°C. For Yellow series derate linearly from 50°C at 0.2 mA/°C.
3. The transient peak current is the maximum non-recurring peak current the devices can withstand without damaging the LED die and
wire bonds. It is not recommended that the device be operated at peak currents beyond the Absolute Maximum Peak Forward Current.
1-84
Electrical/Optical Characteristics at T
A
= 25
°
C
Symbol
λ
PEAK
Description
Peak Wavelength
T-1
3
/
4
3750
3850
3950
D640
3750
3850
3950
D640
3750
3850
3950
D640
3750
3850
3950
D640
3750
3850
3950
D640
3750
3850
3950
D640
T-1
3
/
4
Low
Dome
3390
3490
3590
3390
3490
3590
3390
3490
3590
3390
3490
3590
3390
3490
3590
3390
3490
3590
1340
1440
1540
K640
V
F
Forward Voltage
3750
3850
3950
D640
3750
3850
3950
D640
3750
3850
3950
D640
3390
3490
3590
3390
3490
3590
3390
3490
3590
1340
1440
1540
K640
1340
1440
1540
K640
1340
1440
1540
K640
1.5
1.5
1.5
5.0
T-1
1340
1440
1540
K640
1340
1440
1540
K640
1340
1440
1540
K640
1340
1440
1540
K640
1340
1440
1540
K640
Min.
Typ.
635
583
565
558
626
585
569
560
40
36
28
24
90
90
500
3100
11
15
18
35
210
210
210
510
290
290
290
290
1.9
2.1
2.2
2.2
2.6
2.6
3.0
3.0
Max.
Units
nm
Test
Conditions
Measurement
at Peak
λ
d
Dominant Wavelength
nm
Note 1
∆λ
1
/
2
Spectral Line Halfwidth
nm
τ
S
Speed of Response
ns
C
Capacitance
pF
V
F
= 0, f = 1 MHz
Rθ
J-PIN
Thermal Resistance
°C/W
Junction to
Cathode Lead
V
I
F
= 20 mA
(Figure 3)
V
R
Reverse Breakdown
Voltage
V
I
F
= 100
µA
η
V
Luminous Efficacy
145
500
595
655
lumens
watt
Note 2
Notes:
1. The dominant wavelength,
λ
d
, is derived from the CIE chromaticity diagram and represents the single wavelength which defines the
color of the device.
2. The radiant intensity, I
e
, in watts per steradian, may be found from the equation I
e
= I
V
/η
V
, where I
V
is the luminous intensity in
candelas and
η
V
is the luminous efficacy in lumens/watt.
1-85
Red, Yellow, and Green
1.0
EMERALD GREEN
T
A
= 25° C
RELATIVE INTENSITY
GREEN
HIGH EFFICIENCY RED
0.5
YELLOW
0
500
550
600
WAVELENGTH – nm
650
700
750
Figure 1. Relative Intensity vs. Wavelength.
Figure 2. Maximum Tolerable Peak Current vs. Pulse
Duration. (I
DC
MAX as per MAX Ratings).
Figure 3. Forward Current vs. Forward Voltage.
Figure 4. Relative Luminous Intensity vs. Forward Current.
Figure 5. Relative Efficiency (Luminous Intensity per Unit
Current) vs. Peak Current.
1-86
Figure 6. Relative Luminous Intensity vs. Angular
Displacement. T-1
3
/
4
Lamp.
Figure 7. Relative Luminous Intensity vs. Angular
Displacement. T-1
3
/
4
Low Profile Lamp.
Figure 8. Relative Luminous Intensity vs. Angular
Displacement. T-1 Lamp.
1-87
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