10-14
Package Dimensions
GaAlAs T-1
3
/
4
Standard 5
Infrared Emitting Diode
LTE-3271T/LTE-3371T/LTE-3271TL/LTE-3371TL
Features
Special for high current and low forward voltage.
High power.
Available for pulse operating.
Wide viewing angle.
LTE-3271TL/LTE-3371TL are blue transparent color
package.
Description
The LTE-3271T/LTE-3371T/LTE-3217TL/LTE-3371TL are
high intensity Gallium Aluminum Arsenide infrared emit-
ting diodes mounted in plastic end looking packages.
They provide a broad range of intensity selection and
are specified under pulsed drive up to 2 Amps.
Parameter
Power Dissipation
Peak Forward Current(300pps, 10
s pulse)
Continuous Forward Current
Reverse Voltage
Operating Temperature Range
Storage Temperature Range
Lead Soldering Temperature
[1.6mm (.063 in.) from body]
260
for 5 Seconds
150
2
100
5
mW
A
mA
V
-40
to +85
-55
to +100
Absolute Maximum Ratings at Ta=25
Maximum Rating
U n i t
Notes:
1. All dimensions are in millimeters (inches).
2. Tolerance is
0.25mm (.010") unless otherwise noted.
3. Protruded resin under flange is 1.5mm (.059") max.
4. Lead spacing is measured where the leads emerge from
the package.
5. Specifications are subject to change without notice.
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10-15
INFRARED
PRODUCTS
Parameter
T e s t
Condition
*Aperture Radiant Incidence
Radiant Intensity
Peak Emission Wavelength
Spectral Line Half-Width
Forward Voltage
Forward Voltage
Reverse Current
View Angle (See Fig. 6)
Ee
Ie
Peak
V
F
V
F
I
R
2
1
/
2
0.80
0.90
6
6.77
1.4
1.6
10.5
12
940
50
1.25
1.65
50
40
1.6
2.1
100
mW/cm
2
mW/sr
nm
nm
V
V
A
deg
I
F
=20mA
I
F
=20mA
I
F
=20mA
I
F
=20mA
I
F
=50mA
I
F
=250mA
Symbol
Min.
Typ.
Max.
Unit
Electrical Optical Characteristics at Ta=25
Note: *Ee is a measurement of the average radiant incidence upon a sensing area 1cm
2
in perpendicular to and
centered on the mechanical axis of the lens and 26.8mm from lens.
Part No.
LTE-3271T
LTE-3271TL
LTE-3371T
LTE-3371TL
LTE-3271T
LTE-3271TL
LTE-3371T
LTE-3371TL
LTE-3271T
LTE-3271TL
LTE-3371T
LTE-3371TL
LTE-3271T
LTE-3271TL
LTE-3371T
LTE-3371TL
LTE-3271T
LTE-3271TL
LTE-3371T
LTE-3371TL
LTE-3271T
LTE-3271TL
LTE-3371T
LTE-3371TL
V
R
=5V
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