4 mm FLAT TOP LAMPS
.050 (1.27)
.050 (1.27)
REF. .100 (2.54)
1.00 (25.4)
MIN
.020 (0.50)
SQ. TYP. (2X)
.050 (1.27)
INDICATES
CATHODE
.100 (2.54)
.246 (6.24)
.226 (5.74)
.162 (4.11)
.152 (3.86)
.100 (2.54)
DIA
PACKAGE DIMENSIONS
DESCRIPTION
Bright illumination and wide viewing angle are two outstanding
features of the 4 mm flat top lamps. The cylindrical shape and flat
emitting surface make these lamps particularly well suited for
applications requiring high light output in minimal space.
FEATURES
• Wide viewing angle
• Excellent for backlighting small areas
• Solid state reliability
• Choice of tinted clear or tinted diffused package
Parameters HER YELLOW GREEN UNITS
Power Dissipation 135 120 135 mW
Peak Forward Current
(1 µS pulse width, 0.3% duty cycle) 90 60 90 mA
Reverse Voltage 5 5 5 V
Lead Soldering Time at 260° C 5 5 5 sec
Continuous Forward Current 30 20 30 mA
Operating Temperature -55 to +100 -55 to +100 -55 to +100 °C
Storage Temperature -55 to +100 -55 to +100 -55 to +100 °C
ABSOLUTE MAXIMUM RATING (TA=25°C)
NOTES: ALL DIMENSIONS ARE IN INCHES (mm).
HER HLMP-M200/M201 HLMP-M250/M251
YELLOW HLMP-M300/M301 HLMP-M350/M351
GREEN HLMP-M500/M501 HLMP-M550/M551
2001 Fairchild Semiconductor Corporation
DS300015 3/14/01 1 OF 4 www.fairchildsemi.com
HER YELLOW GREEN
Pararmeter HLMP-M200/M201 HLMP-M300/M301 HLMP-M500/M501 Condition
Luminous Intensity (mcd) IF= 20mA
Minimum 3.4 / 5.4 3.6 / 5.7 4.2 / 6.7
Typical 5.0 / 7.0 5.0 / 7.0 7.0 / 10.0
Forward Voltage (V) IF= 20mA
Maximum 3.0 3.0 3.0
Typical 2.2 2.2 2.3
Peak Wavelength (nm) 635 585 565 IF= 20mA
Reverse Voltage (V) 5 5 5 IR= 100µA
Viewing Angle (°) 135 135 135 IF= 20mA
ELECTRICAL / OPTICAL CHARACTERISTICS (TA=25°C)
4 mm FLAT TOP LAMPS
HER YELLOW GREEN
Pararmeter HLMP-M250/M251 HLMP-M350/M351 HLMP-M550/M551 Condition
Luminous Intensity (mcd) IF= 10mA
Minimum 3.4 / 5.4 3.6 / 5.7 4.2 / 6.7
Typical 5.0 / 7.0 5.0 / 7.0 10.0 / 16.0
Forward Voltage (V) IF= 20mA
Maximum 3.0 3.0 3.0
Typical 2.2 2.2 2.3
Peak Wavelength (nm) 635 585 565 IF= 10mA
Reverse Voltage (V) 5 5 5 IR= 100µA
Viewing Angle (°) 80 80 80 IF= 10mA
ELECTRICAL / OPTICAL CHARACTERISTICS (TA=25°C)
www.fairchildsemi.com 2 OF 4 3/14/01 DS300015
RELATIVE INTENSITY
Fig. 3 Relative Intensity vs. Peak Wavelength
1.0
0.5
0
500 550 600 650 700 750
90
IF - FORWARD CURRENT (mA)
VF - FORWARD VOLTAGE (V)
WAVELENGTH (nm)
Fig. 1 Forward Current vs. Forward Voltage
40
50
60
70
80
30
20
10
0
1.0 2.0 3.0 4.0 5.0
IF - DC FORWARD CURRENT (mA)
RELATIVE LUMNOUS INTENSITY
(NORMALIZED AT 20 mA)
Fig. 2 Relative Luminous Intensity vs.
DC Forward Current
2.5
2.0
1.5
1.0
0.5
0.0
0 5 10 15 20 25 30
YELLOW
GREEN
HER HER
YELLOW
GREEN
GREEN YELLOW
IF - FORWARD CURRENT (mA)
TA - AMBIENT TEMPERATURE (˚C)
Fig. 5 Current Derating Curve
50
40
30
20
10
0
0204060
80 100
HER, GREEN
YELLOW
-80˚80˚
-70˚70˚
-60˚60˚
-50˚50˚
-40˚40˚
-30˚30˚
-20˚20˚
-10˚10˚
0˚
1.0 0.8 0.6 0.4 0.2 0 0.2 0.4 0.6 0.8 1.0
Fig.4 Radiation Diagram
-90˚90˚
REL. LUMINOUS INTENSITY (%)
HER
1.2 1.2
DIFFUSED
NON-DIFFUSED
TYPICAL PERFORMANCE CURVES (TA=25°C)
4 mm FLAT TOP LAMPS
DS300015 3/14/01 3 OF 4 www.fairchildsemi.com
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE
TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT
ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT
DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE
RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD
SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical
implant into the body,or (b) support or sustain life,
and (c) whose failure to perform when properly
used in accordance with instructions for use provided
in labeling, can be reasonably expected to result in a
significant injury of the user.
2. A critical component in any component of a life support
device or system whose failure to perform can be
reasonably expected to cause the failure of the life
support device or system, or to affect its safety or
effectiveness.
4 mm FLAT TOP LAMPS
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