IR Emitter and Detector
LTE-R38386A-ZF-U
1. Description
Lite-On offers a broad range of discrete infrared components for application such as remote control, IR wireless data
transmission, security alarm & etc. Customers need infrared solutions featuring high power, high speed and wide viewing
angels. The product line includes GaAs 940nm IREDs, AlGaAs high speed 850nm IREDs, PIN Photodiodes and
Phototransistors. Photodiodes and Phototransistors can be provided with a filter that reduces digital light noise in the sensor
function, which enables a high signal-to-noise ratio.
1. 1. Features
High power LED light source
High performance, long life
High LED driving current
Meet ROHS, Green Product
1.2. Applications
Infrared emitter
PCB Mounted Infrared Sensor
2. Outline Dimensions
Notes :
1. All dimensions are in millimeters (inches).
2. Tolerance is ±0.1mm (.004") unless otherwise noted.
3. Specifications are subject to change without notice.
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Part No. : LTE-R38386A-ZF-U
BNS-OD-FC 002/A4
IR Emitter and Detector
LTE-R38386A-ZF-U
3. Absolute Maximum Ratings at TA=25°C
Parameter
Maximum Rating
Unit
2.5
W
Peak Forward Current(300pps, 10µs pulse)
5
A
DC Forward Current
1
A
Reverse Voltage
5
V
Thermal Resistance Junction
10
K/W
Power Dissipation
Operating Temperature Range
-40°C to + 85°C
Storage Temperature Range
-55°C to + 100°C
Infrared Soldering Condition
260°C for 10 Seconds Max.
4. Electrical / Optical Characteristics at TA=25°C
Parameter
Symbol
Min.
Typ.
Max.
Unit
Test Condition
Radiant Intensity
IE
150
200
-
mW/sr
IF = 1A
Total Radiant Flux
Фe
-
800
-
mW
IF = 1A
λPeak
-
850
-
nm
IF = 1A
Spectral Line Half-Width
∆λ
-
50
-
nm
IF = 1A
Forward Voltage
VF
-
1.8
2.5
V
IF = 1A
Reverse Current
IR
-
-
10
µA
VR = 5V
Rise/Fall Time
Tr/Tf
-
30
-
ns
10%~90%
Viewing Angle
2θ1/2
-
150
-
deg
Peak Emission Wavelength
NOTE:
1. θ1/2 is the off-axis angle at which the luminous intensity is half the axial luminous intensity.
2. The dominant wavelength, λd is derived from the CIE chromaticity diagram and represents the single wavelength which defines
the color of the device.
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Part No. : LTE-R38386A-ZF-U
BNS-OD-FC 002/A4
IR Emitter and Detector
LTE-R38386A-ZF-U
5. Typical Electrical / Optical Characteristics Curves
(25°C Ambient Temperature Unless Otherwise Noted)
1.2
Forward Current IF (A)
Relative Radiant Intensity
1.0
0.5
0.8
0.6
0.4
0.2
0
850
950
-40 -20 0
20 40 60 80 100
Wavelength (nm)
Ambient Temperature Ta ( o C)
FIG.1 SPECTRAL DISTRIBUTION
FIG.2 FORWARD CURRENT VS.
AMBIENT TEMPERATURE
1000
1.2
Output Power Relative To
Value at IF=1A
Forward Current (mA)
0
750
1.0
800
600
400
200
0
1.0
0.8
0.6
0.4
0.2
0
0
0.5
1.0
1.5
2.0
2.5
-20
0
20
40
60
80
Forward Voltage (V)
Ambient Temperature Ta ( o C)
FIG.3 FORWARD CURRENT VS.
FORWARD VOLTAGE
FIG.4 RELATIVE RADIANT INTENSITY
VS. AMBIENT TEMPERATURE
0
o
10
o
20
o
30
Relative Radiant Intensity
Output Power Relative To
Value at IF=1A
5.0
4.0
3.0
2.0
1.0
40
1.0
0.9
50
0.8
60
0.7
70
80
90
o
o
o
o
o
o
o
0
0
1
2
3
4
5
0.5 0.3 0.1
0.2 0.4 0.6
Foward Current (A)
FIG.5 RELATIVE RADIANT INTENSITY
VS. FORWARD CURRENT
FIG.6 RADIATION DIAGRAM
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Part No. : LTE-R38386A-ZF-U
BNS-OD-FC 002/A4
IR Emitter and Detector
LTE-R38386A-ZF-U
6. Suggest Soldering Pad Dimensions
7. Package Dimensions Of Tape And Reel
Cathode
Note: All dimensions are in millimeters (inches).
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Part No. : LTE-R38386A-ZF-U
BNS-OD-FC 002/A4
IR Emitter and Detector
LTE-R38386A-ZF-U
Note: 1. All dimensions are in millimeters (inches).
2. Empty component pockets sealed with top cover tape.
3. 7 inch reel-600 pieces per reel.
4. The maximum number of consecutive missing parts is two.
5. In accordance with ANSI/EIA 481-1-A-1994 specifications.
8. CAUTIONS
8.1. Application
The LEDs described here are intended to be used for ordinary electronic equipment (such as office equipment, communication
equipment and household applications).Consult Liteon’s Sales in advance for information on applications in which exceptional
reliability is required, particularly when the failure or malfunction of the LEDs may directly jeopardize life or health (such as in
aviation, transportation, traffic control equipment, medical and life support systems and safety devices).
8.2. Storage
The package is sealed:
The LEDs should be stored at 30°C or less and 90%RH or less. And the LEDs are limited to use within
one year, while the LEDs is packed in moisture-proof package with the desiccants inside.
The package is opened:
The storage ambient for the LEDs should not exceed 30°C temperature or 60% relative humidity.
It is recommended that LEDs out of their original packaging are IR-reflowed within one week hrs.
For extended storage out of their original packaging, it is recommended that the LEDs be stored in a sealed container with
appropriate desiccant, or in a desiccators with nitrogen ambient.
LEDs stored out of their original packaging for more than one week hrs should be baked at about 60 deg C for at least 20
hours before solder assembly.
8.3. Cleaning
Use alcohol-based cleaning solvents such as isopropyl alcohol to clean the LEDs if necessary.
5/6
Part No. : LTE-R38386A-ZF-U
BNS-OD-FC 002/A4
IR Emitter and Detector
LTE-R38386A-ZF-U
8.4. Soldering
Recommended soldering conditions:
Reflow Soldering
Pre-heat
Pre-heat time
Peak temperature
Soldering time
150~200°C
120 seconds Max.
260°C Max.
10 seconds Max.(Max. two times)
Soldering iron
Temperature
Soldering time
300°C Max.
3 seconds Max.
(one time one)
Because different board designs use different number and types of devices, solder pastes, reflow ovens, and circuit boards, no
single temperature profile works for all possible combinations.
However, you can successfully mount your packages to the PCB by following the proper guidelines and PCB-specific
characterization.
LITE-ON Runs both component-level verification using in-house KYRAMX98 reflow chambers and board-level assembly.
The results of this testing are verified through post-reflow reliability testing.
Profiles used at LITE-ON are based on JEDEC standards to ensure that all packages can be successfully and reliably surface
mounted.
Figure on page3 shows a sample temperature profile compliant to JEDEC standards.
You can use this example as a generic target to set up your reflow process.
You should adhere to the JEDEC profile limits as well as specifications and recommendations from the solder paste
manufacturer to avoid damaging the device and create a reliable solder joint.
8.5. Drive Method
An LED is a current-operated device. In order to ensure intensity uniformity on multiple LEDs connected in parallel in an
application, it is recommended that a current limiting resistor be incorporated in the drive circuit, in series with each LED as
shown in Circuit A below.
Circuit model (A)
LED
Circuit model (B)
LED
(A) Recommended circuit
(B) The brightness of each LED might appear different due to the differences in the I-V characteristics of those LEDs.
9. Others
The appearance and specifications of the product may be modified for improvement, without prior notice.
6/6
Part No. : LTE-R38386A-ZF-U
BNS-OD-FC 002/A4
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