T-13/4 (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
Axial Luminous Intensity and Viewing Angle @ 25°C
Part Iv (mcd) @ 20 mA DC
Number Package Package
HLMP- Description Color Min. Typ. 2θ1/2[1] Outline
3750 T-13/4HER 90 125 24°A
3850 Yellow 96 140 24°A
3950 Green 111 265 24°A
D640[2] Emerald Green 6.7 21 24°D
3390 T-13/4 Low Profile HER 35 55 32°B
3490 Yellow 37 55 32°B
3590 Green 40 55 32°B
1340 T-1 HER 22 45 45°C
1440 Yellow 23 45 45°C
1540 Green 27 45 45°C
K640[2] Emerald Green 4.2 21 45°C
Note:
1. θ1/2 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.
Features
• Improved Brightness
• Improved Color Performance
• Available in Popular T-1 and
T-13/4 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.
2
Package Dimensions
Absolute Maximum Ratings at TA = 25°C
Parameter Red Yellow Green/Emerald Green Units
Peak Forward Current 90 60 90 mA
Average Forward Current[1] 25 20 25 mA
DC Current[2] 30 20 30 mA
Transient Forward Current[3] 500 500 500 mA
(10 µs Pulse)
Reverse Voltage (IR = 100 µA) 5 5 5 V
LED Junction Temperature 110 110 110 °C
Operating Temperature Range -55 to +100 -55 to +100 -20 to +100 °C
Storage Temperature Range -55 to +100
Lead Soldering Temperature 260°C for 5 seconds
[1.6 mm (0.063 in.) from body]
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.
NOTES:
1. ALL DIMENSIONS ARE IN MILLIMETERS (INCHES).
2. AN EPOXY MENISCUS MAY EXTEND ABOUT 1 mm (0.40") DOWN THE LEADS.
PACKAGE OUTLINE “D”
HLMP-D640
PACKAGE OUTLINE “C”
HLMP-1340, -1440, -1540, -K640
PACKAGE OUTLINE A”
HLMP-3750, -3850, -3950 PACKAGE OUTLINE B”
HLMP-3390, -3490, -3590
5.34 (0.210)
4.83 (0.190)
3
Electrical/Optical Characteristics at TA = 25°C
T-13/4
Low Test
Symbol Description T-13/4Dome T-1 Min. Typ. Max. Units Conditions
λPEAK Peak Wavelength 3750 3390 1340 635 nm Measurement
3850 3490 1440 583 at Peak
3950 3590 1540 565
D640 K640 558
λdDominant Wavelength 3750 3390 1340 626 nm Note 1
3850 3490 1440 585
3950 3590 1540 569
D640 K640 560
∆λ1/2Spectral Line Halfwidth 3750 3390 1340 40 nm
3850 3490 1440 36
3950 3590 1540 28
D640 K640 24
τSSpeed of Response 3750 3390 1340 90 ns
3850 3490 1440 90
3950 3590 1540 500
D640 K640 3100
C Capacitance 3750 3390 1340 11 pF VF = 0, f = 1 MHz
3850 3490 1440 15
3950 3590 1540 18
D640 K640 35
RθJ-PIN Thermal Resistance 3750 3390 210 °C/W Junction to
3850 3490 210 Cathode Lead
3950 3590 210
D640 510
1340 290
1440 290
1540 290
K640 290
VFForward Voltage 3750 3390 1340 1.5 1.9 2.6 V IF = 20 mA
3850 3490 1440 1.5 2.1 2.6 (Figure 3)
3950 3590 1540 1.5 2.2 3.0
D640 K640 2.2 3.0
VRReverse Breakdown 3750 3390 1340 5.0 V IF = 100 µA
Voltage 3850 3490 1440
3950 3590 1540
D640 K640
ηVLuminous Efficacy 3750 3390 1340 145 lumens Note 2
3850 3490 1440 500 watt
3950 3590 1540 595
D640 K640 655
Notes:
1. The dominant wavelength, λd, is derived from the CIE chromaticity diagram and represents the single wavelength which defines the
color of the device.
2. The radiant intensity, Ie, in watts per steradian, may be found from the equation Ie = IV/ηV, where IV is the luminous intensity in
candelas and ηV is the luminous efficacy in lumens/watt.
4
Figure 1. Relative Intensity vs. Wavelength.
Red, Yellow, and Green
Figure 4. Relative Luminous Intensity vs. Forward Current. Figure 5. Relative Efficiency (Luminous Intensity per Unit
Current) vs. Peak Current.
HIGH EFFICIENCY RED
WAVELENGTH – nm
RELATIVE INTENSITY
1.0
0.5
0
500 550 600 650 700 750
YELLOW
EMERALD GREEN
GREEN
T = 25° C
A
Figure 2. Maximum Tolerable Peak Current vs. Pulse
Duration. (IDC MAX as per MAX Ratings). Figure 3. Forward Current vs. Forward Voltage.
5
Figure 6. Relative Luminous Intensity vs. Angular
Displacement. T-13/4 Lamp. Figure 7. Relative Luminous Intensity vs. Angular
Displacement. T-13/4 Low Profile Lamp.
Figure 8. Relative Luminous Intensity vs. Angular
Displacement. T-1 Lamp.
www.hp.com/go/led
For technical assistance or the location of
your nearest Hewlett-Packard sales office,
distributor or representative call:
Americas/Canada: 1-800-235-0312 or
408-654-8675
Far East/Australasia: Call your local HP
sales office.
Japan: (81 3) 3335-8152
Europe: Call your local HP sales office.
Data subject to change.
Copyright © 1998 Hewlett-Packard Co.
Obsoletes 5964-9290E
5968-3383E (12/98)