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Copyright © 2010, Everlight Americas Inc. All Rights Reserved. Release Date : May.05.2014.
Issue No: XXXXXXXXXX Rev.0.1
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Technical Data Sheet
Infrared MIDLED LED
EAIST3122A1
Features
․Low forward voltage.
․View angle 30°(Typ.)
․Pb free
․The product itself will remain within RoHS compliant version.
․Compatible with infrared and vapor phase reflow solder process.
Description
․EAIST3122A1 is an infrared emitting diode with miniature MIDLED package. The device is
spectrally matched with silicon photodiode and phototransistor
Applications
․Infrared applied system
Device Selection Guide
Device No.
Chip Material
Lens Color
EAIST3122A1
GaAlAs
Water clear
DATASHEET
EAIST3122A1
2
Copyright © 2010, Everlight Americas Inc. All Rights Reserved. Release Date : May.05.2014.
Issue No: XXXXXXXXXX Rev.0.1
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Cu pad for heat dissipation
solder resist
Package Dimensions
Notes: 1.All dimensions are in millimeters
2.Tolerances unless dimensions ±0.1mm
DATASHEET
EAIST3122A1
3
Copyright © 2010, Everlight Americas Inc. All Rights Reserved. Release Date : May.05.2014.
Issue No: XXXXXXXXXX Rev.0.1
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Absolute Maximum Ratings (Ta=25℃)
Parameter
Symbol
Rating
Unit
Continuous Forward Current
IF
80
mA
Peak Forward Current *1
IFP
800
mA
Reverse Voltage
VR
5
V
Operating Temperature
Topr
-40 ~ +100
℃
Storage Temperature
Tstg
-40 ~ +100
℃
Soldering Temperature *2
Tsol
260
℃
Power Dissipation at(or below)
25℃Free Air Temperature
Pd
170
mW
Notes: *1: IFP Conditions--Pulse Width≦100μs and Duty≦1%.
*2: Soldering time≦5 seconds.
Electro-Optical Characteristics (Ta=25℃)
Rank
Condition：IF=70mA
Unit：mW/sr
Bin Number
C
D
Min
40
63
Max
80
125
Parameter
Symbol
Min.
Typ.
Max.
Unit
Condition
Radiant Intensity
Ie
40
60
125
mW /sr
IF=70mA
45
70
--
. IF=100mA
Pulse Width≦100μs ,Duty≦1%
Peak Wavelength
λp
--
940
--
nm
IF=100mA
Spectral Bandwidth
Δλ
--
40
--
nm
IF=100mA
Forward Voltage
VF
--
1.75
2.2
V
IF=100mA
Reverse Current
IR
--
--
10
μA
VR=5V
View Angle
2θ1/2
--
30
--
deg
IF=20mA
DATASHEET
EAIST3122A1
4
Copyright © 2010, Everlight Americas Inc. All Rights Reserved. Release Date : May.05.2014.
Issue No: XXXXXXXXXX Rev.0.1
www.everlightamericas.com
880
0
20
40
60
80
100
980
940900 920 960 10201000 1040
IF=20mA
Ta=25°C
0
Ambient Temperature (°C)
-40 -20 40
20060 10080
Forward Current (mA)
20
40
60
100
80
120
140
0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10
0
30
60
90
120
150
Ie-Radiant Intensity(mW/sr)
IF-Forward Current (A)
-20
0.6
0.9
0.7
0.8
1.0
0.20.4 0 0.2 0.4 0.6
50
70
80
60
40
30
-10 02010
Typical Electrical/Optical/Characteristics Curves for IR
Forward Current vs. Ambient Temperature
Spectral Distribution
Radiant Intensity vs Forward Current
Relative Radiant Intensity vs. Angular
Displacement
DATASHEET
EAIST3122A1
5
Copyright © 2010, Everlight Americas Inc. All Rights Reserved. Release Date : May.05.2014.
Issue No: XXXXXXXXXX Rev.0.1
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050 100 150 200 250 300 350 400 450 500
0
50
100
150
200
250
300
350
400
450
Radiant Intensity(mW/sr)
Forward Current(mA)
Radiant Intensity vs Forward Current (pulse)
Forward Current vs Forward Voltage
0 1 2 3 4 5
101
102
103
Forward Current(mA)
Forward Voltage(V)
DATASHEET
EAIST3122A1
6
Copyright © 2010, Everlight Americas Inc. All Rights Reserved. Release Date : May.05.2014.
Issue No: XXXXXXXXXX Rev.0.1
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Precautions For Use
1. Over-current-proof
Customer must apply resistors for protection , otherwise slight voltage shift will cause big
current change ( Burn out will happen ).
2. Storage
2.1 Do not open moisture proof bag before devices are ready to use.
2.2 Shelf life in sealed bag from the bag seal date:
18 onths at 10°C~30°C and < 90% RH.
2.3 After opening the package, the devices must be stored at 10°C~30°C and 60%RH,
and used within 72 hours(floor life).
2.4 If the moisture absorbent material(desiccant material) has faded or unopened bag has exceeded the shelf
life or devices(out of bag) have exceeded the floor life, baking treatment is required.
2.5 If baking is required, refer to IPC/JEDEC J-STD-033 for bake procedure or recommend the following
conditions :
192 hours at 40°C +5/–0°C and < 5 % RH (reeled/tubed/loose units) or
96 hours at 60°C ± 5°C and < 5 % RH (reeled/tubed/loose units) or
24 hours at 125°C ± 5°C, not suitable for reel or tubes.
3. Soldering Condition
3.1 Pb-free solder temperature profile
3.2 Reflow soldering should not be done more than two times.
3.3 When soldering, do not put stress on the LEDs during heating.
3.4 After soldering, do not warp the circuit board.
DATASHEET
EAIST3122A1
7
Copyright © 2010, Everlight Americas Inc. All Rights Reserved. Release Date : May.05.2014.
Issue No: XXXXXXXXXX Rev.0.1
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4. Soldering Iron
Each terminal is to go to the tip of soldering iron temperature less than 350℃ for 3 seconds within
once in less than the soldering iron capacity 25W. Leave two seconds and more intervals, and do soldering
of each terminal. Be careful because the damage of the product is often started at the time of the hand
solder.
5. Repairing
Repair should not be done after the LEDs have been soldered. When repairing is unavoidable, a
double-head soldering iron should be used (as below figure). It should be confirmed beforehand whether the
characteristics of the LEDs will or will not be damaged by repairing.
DATASHEET
EAIST3122A1
8
Copyright © 2010, Everlight Americas Inc. All Rights Reserved. Release Date : May.05.2014.
Issue No: XXXXXXXXXX Rev.0.1
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1
2
2
1
Cathode
Anode
2
1
Package Dimensions
Note: The tolerances unless mentioned is ±0.1mm ,Unit = mm
2. Carrier Tape Dimensions:(Quantity: 2000pcs/reel)
Note: The tolerances unless mentioned is ±0.1mm ,Unit = mm
DATASHEET
EAIST3122A1
9
Copyright © 2010, Everlight Americas Inc. All Rights Reserved. Release Date : May.05.2014.
Issue No: XXXXXXXXXX Rev.0.1
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Packing Procedure
Aluminum moistue-proof bag LabelDesiccant
Label
Label Form Specification
CPN: Customer’s Production Number
P/N : Production Number
QTY: Packing Quantity
CAT: Ranks
HUE: Peak Wavelength
REF: Reference
LOT No: Lot Number
MADE IN TAIWAN: Production Place
Notes
1. Above specification may be changed without notice. Everlight Americas will reserve authority on material
change for above specification.
2. When using this product, please observe the absolute maximum ratings and the instructions for using
outlined in these specification sheets. Everlight Americas assumes no responsibility for any damage
resulting from use of the product which does not comply with the absolute maximum ratings and the
instructions included in these specification sheets.
3. These specification sheets include materials protected under copyright of Everlight Americas corporation.
Please don’t reproduce or cause anyone to reproduce them without Everlight Americas’s consent.
