LITEON LTST-S322KFKT Rohs/ side looking chip led/ ultra bright alingap chip led Datasheet

LITE-ON TECHNOLOGY CORPORATION
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Features
* Meet ROHS, Green Product.
* Side Looking Special For LCD Backlight.
* Ultra Bright AlInGaP Chip LED.
* Package In 8mm Tape On 7" Diameter Reels.
* EIA STD package.
* I.C. compatible.
* Compatible With Automatic Placement Equipment.
* Compatible With Infrared Reflow Solder Process.
Package
Dimensions
Part No.
Lens
Source Color
LTST-S322KFKT
Water Clear
AlInGaP Orange
Notes:
1. All dimensions are in millimeters (inches).
2. Tolerance is ± 0.10 mm (.004") unless otherwise noted.
Part
No. : LTST-S322KFKT
BNS-OD-C131/A4
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Absolute
Maximum
Ratings
At
Parameter
℃
Ta=25℃
LTST-S322KFKT
Unit
Power Dissipation
50
mW
Peak Forward Current
(1/10 Duty Cycle, 0.1ms Pulse Width)
60
mA
DC Forward Current
20
mA
Reverse Voltage
5
V
Operating Temperature Range
-30°C to + 85°C
Storage Temperature Range
-40°C to + 85°C
Infrared Soldering Condition
260°C For 10 Seconds
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Suggestion
Suggestion Profile:
Suggestion IR Reflow Profile For Pb Free Process
Part
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Electrical
Optical
Characteristics
Parameter
Symbol
Luminous Intensity
At
℃
Ta=25℃
Part No.
LTST-
Min.
Typ.
45.0
Max.
Unit
Test Condition
90.0
mcd
IF = 20mA
Note 1
IV
S322KFKT
2θ1/2
S322KFKT
130
deg
Note 2 (Fig.6)
Peak Emission Wavelength
λP
S322KFKT
611
nm
Measurement
@Peak (Fig.1)
Dominant Wavelength
λd
S322KFKT
605
nm
Note 3
Spectral Line Half-Width
Δλ
S322KFKT
17
nm
Forward Voltage
VF
S322KFKT
2.0
Reverse Current
IR
S322KFKT
Viewing Angle
2.4
V
IF = 20mA
10
μA
VR = 5V
Notes: 1. Luminous intensity is measured with a light sensor and filter combination that approximates the
CIE eye-response curve.
2. θ1/2 is the off-axis angle at which the luminous intensity is half the axial luminous intensity.
3. The dominant wavelength, λd is derived from the CIE chromaticity diagram and represents the
single wavelength which defines the color of the device.
Part
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Bin Code List
Luminous Intensity
Unit : mcd @20mA
Bin Code
Min.
Max.
P
45.0
71.0
Q
71.0
112.0
R
112.0
180.0
S
180.0
280.0
Tolerance on each Intensity bin is +/-15%
Part
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Typical
(25 °C
Part
No. : LTST-S322KFKT
BNS-OD-C131/A4
Electrical
Ambient
/
Optical
Temperature
Characteristics
Unless
Otherwise
Curves
Noted)
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Cleaning
Do not use unspecified chemical liquid to clean LED they could harm the package.
If clean is necessary, immerse the LED in ethyl alcohol or in isopropyl alcohol at normal temperature for
less one minute.
Suggest Soldering Pad Dimensions
Package Dimensions Of Tape And Reel
Notes:
1. All dimensions are in millimeters (inches).
Part
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Notes:
1. Empty component pockets sealed with top cover tape.
2. 7 inch reel-3000 pieces per reel.
3. Minimum packing quantity is 500 pcs for remainders.
4. The maximum number of consecutive missing lamps is two.
5. In accordance with ANSI/EIA 481-1-A-1994 specifications.
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CAUTIONS
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).
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.
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 a week should be baked at about 60 deg C for at
least 20 hours before solder assembly.
3. Cleaning
Use alcohol-based cleaning solvents such as isopropyl alcohol to clean the LED if necessary.
4. Soldering
Recommended soldering conditions:
Reflow soldering
Pre-heat
Pre-heat time
Peak temperature
Soldering time
150~200°C
Temperature
120 sec. Max.
Soldering time
260°C Max.
10 sec. Max.(Max. two times)
Soldering iron
300°C Max.
3 sec. Max.
(one time only)
Soldering notes:
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.
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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.
6. ESD (Electrostatic Discharge)
Static Electricity or power surge will damage the LED.
Suggestions to prevent ESD damage:
Use of a conductive wrist band or anti-electrostatic glove when handling these LEDs.
All devices, equipment, and machinery must be properly grounded.
Work tables, storage racks, etc. should be properly grounded.
Use ion blower to neutralize the static charge which might have built up on surface of the LED’s plastic lens as a
result of friction between LEDs during storage and handling.
ESD-damaged LEDs will exhibit abnormal characteristics such as high reverse leakage current, low forward voltage,
or “ no lightup ” at low currents.
To verify for ESD damage, check for “ lightup ” and Vf of the suspect LEDs at low currents.
The Vf of “ good ” LEDs should be >[email protected] for InGaN product and >[email protected] for AlInGaP product.
Part
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7. Reliability Test
Classification
Test Item
Reference Standard
Ta= Under Room Temperature As Per Data Sheet
Maximum Rating
*Test Time= 1000HRS (-24HRS,+72HRS)
MIL-STD-750D:1026
MIL-STD-883D:1005
JIS C 7021:B-1
High Temperature
High Humidity
Storage
IR-Reflow In-Board, 2 Times
Ta= 65±5 ,RH= 90~95%
*Test Time= 240HRS±2HRS
MIL-STD-202F:103B
JIS C 7021:B-11
High Temperature
Storage
Ta= 105±5
*Test Time= 1000HRS (-24HRS,+72HRS)
MIL-STD-883D:1008
JIS C 7021:B-10
Low Temperature
Storage
Ta= -55±5
*Test Time=1000HRS (-24HRS,+72H RS)
JIS C 7021:B-12
105 ~ 25 ~ -55 ~ 25
30mins 5mins
30mins 5mins
10 Cycles
MIL-STD-202F:107D
MIL-STD-750D:1051
MIL-STD-883D:1010
JIS C 7021:A-4
IR-Reflow In-Board, 2 Times
85 ± 5 ~ -40 ± 5
10mins
10mins 10 Cycles
MIL-STD-202F:107D
MIL-STD-750D:1051
MIL-STD-883D:1011
T.sol= 260 ± 5
Dwell Time= 10 ± 1secs
MIL-STD-202F:210A
MIL-STD-750D:2031
JIS C 7021:A-1
Operation Life
Endurance
Test
Test Condition
Temperature
Cycling
Thermal
Shock
Solder
Resistance
Environmental
Test
IR-Reflow
Pb Free Process
Solderability
Ramp-up rate(217 to Peak) +3 / second max
Temp. maintain at 175(±25) 180 seconds max
Temp. maintain above 217 60-150 seconds
Peak temperature range 260 +0/-5
Time within 5°C of actual Peak Temperature (tp)
10~30 seconds
Ramp-down rate +6 /second max
MIL-STD-750D:2031.2
J-STD-020D
MIL-STD-202F:208D
MIL-STD-750D:2026
MIL-STD-883D:2003
IEC 68 Part 2-20
JIS C 7021:A-2
T.sol= 235 ± 5
Immersion time 2±0.5 sec
Immersion rate 25±2.5 mm/sec
Coverage 95% of the dipped surface
8. Others
The appearance and specifications of the product may be modified for improvement without prior notice.
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9. Suggested Checking List
Training and Certification
1. Everyone working in a static-safe area is ESD-certified?
2. Training records kept and re-certification dates monitored?
Static-Safe Workstation & Work Areas
1. Static-safe workstation or work-areas have ESD signs?
2. All surfaces and objects at all static-safe workstation and within 1 ft measure less than 100V?
3. All ionizer activated, positioned towards the units?
4. Each work surface mats grounding is good?
Personnel Grounding
1. Every person (including visitors) handling ESD sensitive (ESDS) items wears wrist strap, heel
strap or conductive shoes with conductive flooring?
2. If conductive footwear used, conductive flooring also present where operator stand or walk?
3. Garments, hairs or anything closer than 1 ft to ESD items measure less than 100V*?
4. Every wrist strap or heel strap/conductive shoes checked daily and result recorded for all DLs?
5. All wrist strap or heel strap checkers calibration up to date?
Note: *50V for Blue LED.
Device Handling
1. Every ESDS items identified by EIA-471 labels on item or packaging?
2. All ESDS items completely inside properly closed static-shielding containers when not at
static-safe workstation?
3. No static charge generators (e.g. plastics) inside shielding containers with ESDS items?
4. All flexible conductive and dissipative package materials inspected before reuse or recycles?
Others
1. Audit result reported to entity ESD control coordinator?
2. Corrective action from previous audits completed?
3. Are audit records complete and on file?
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