is the off axis angle from lamp centerline where the luminous intensity is
1
/
2
the on-axis value.
Absolute Maximum Ratings at T
A
= 25
°
C
Peak Forward Current
[1]
....................................................................................................................... 300 mA
Average Forward Current ....................................................................................................................... 20 mA
DC Current
[2]
.......................................................................................................................................... 30 mA
Power Dissipation .................................................................................................................................. 87 mW
Reverse Voltage (I
R
= 100
µA)
.................................................................................................................... 5 V
Transient Forward Current (10
µs
Pulse)
[3]
.......................................................................................... 500 mA
LED Junction Temperature ..................................................................................................................... 110°C
Operating Temperature Range ................................................................................................... -20 to +100°C
Storage Temperature Range ...................................................................................................... -55 to +100°C
Lead Soldering Temperature [1.6 mm (0.063 in.) from body] ........................................... 260°C for 5 seconds
Notes:
1. Maximum I
PEAK
at f = 1 kHz, DF = 6.7%.
2. Derate linearly as shown in Figure 4.
3. The transient peak current is the maximum non-recurring peak current the device 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.
1-72
Electrical/Optical Characteristics at T
A
= 25
°
C
Symbol
V
F
V
R
λ
p
λ
d
∆λ
1
/
2
τ
S
C
Rθ
J-PIN
Description
Forward Voltage
Reverse Breakdown Voltage
Peak Wavelength
Dominant Wavelength
Spectral Line Halfwidth
Speed of Response
Capacitance
Thermal Resistance
5.0
Min.
Typ.
1.6
15.0
645
637
20
30
30
260
[3]
210
[4]
290
[5]
80
Max.
1.8
Unit
V
V
nm
nm
nm
ns
pF
°C/W
Exponential Time
Constant, e
-t
/T
S
V
F
= 0, f = 1 MHz
Junction to Cathode Lead
Test Condition
I
F
= 1 mA
I
R
= 100
µA
Measurement at Peak
Note 1
η
V
Luminous Efficacy
Im/W
Note 2
Notes:
1. The dominant wavelength,
λ
d
, is derived from the CIE chromaticity diagram and represents the color of the device.
2. The radiant intensity, I
e
, in watts per steradian, may be found from the equation I
e
= l
V
/η
V
, where I
V
is the luminous intensity in
candelas and
η
V
is luminous efficacy in lumens/watt.
3. HLMP-D150.
4. HLMP-D155.
5. HLMP-K150/-K155.
Figure 1. Relative Intensity vs. Wavelength.
Figure 2. Forward Current vs. Forward Voltage.
1-73
Figure 3. Relative Luminous Intensity vs. DC Forward
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