LTW-2S3D7S [LITEON]
Property of Lite-On Only; 精简版，关于财产只有
| 型号： | LTW-2S3D7S |
| 厂家： | 
LITE-ON TECHNOLOGY CORPORATION |
| 描述： | Property of Lite-On Only |
| 文件： | 总8页 (文件大小：268K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LITE-ON TECHNOLOGY CORPORATION
P r o p e r t y o f L i t e - O n O n l y
Features
* Lead (Pb) free product – RoHS compliant.
* Low power consumption.
* High efficiency.
* Versatile mounting on p.c. board or panel.
* I.C. compatible/low current requirement.
* Popular T-1 diameter.
3/4
Package Dimensions
Part No.
LTW-2S3D7S
Lens Color
Water Clear
Emitted Color
InGaN White
NOTES:
1. All dimensions are in millimeters (inches).
±
2. Tolerance is 0.25mm(.010") unless otherwise noted.
3. Protruded resin under flange is 1.0mm(.04") max.
4. Lead spacing is measured where the leads emerge from the package.
5. Specifications are subject to change without notice.
Part No. : LTW-2S3D7S
BNS-OD-C131/A4
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LITE-ON TECHNOLOGY CORPORATION
P r o p e r t y o f L i t e - O n O n l y
℃
a
Absolute Maximum Ratings at T =25
PARAMETER
MAXIMUM RATING
120
UNIT
mW
Power Dissipation
Peak Forward Current
100
mA
(1/10 Duty Cycle, 0.1ms Pulse Width)
DC Forward Current
30
5
mA
V
Reverse Voltage
℃
℃
-25 to + 80
Operating Temperature Range
Storage Temperature Range
℃
℃
-30 to + 100
Lead Soldering Temperature
[2.0mm(.0787") From Body]
℃
260 for 5 Seconds
Part No. : LTW-2S3D7S
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LITE-ON TECHNOLOGY CORPORATION
P r o p e r t y o f L i t e - O n O n l y
℃
Electrical / Optical Characteristics at Ta=25
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNIT TEST CONDITION
IF = 20mA
Note 1,2,3
Iv Spec. Table
Luminous Intensity
Viewing Angle
Iv
10000 13000
mcd
θ
x
2
1/2
15
deg
Note 4
IF = 20mA
Note 5
Hue Spec. Table &
Chromaticity Diagram
0.30
0.30
3.3
Chromaticity Coordinates
y
Forward Voltage
Reverse Current
VF
IR
3.6
V
IF = 20mA
VR = 5V
μ
A
100
NOTE: 1. Luminous intensity is measured with a light sensor and filter combination that approximates the CIE
eye-response curve.
± ﹪
2. The Iv guarantee should be added 15 tolerance.
3. Iv classification code is marked on each packing bag.
θ
4. 1/2 is the off-axis angle at which the luminous intensity is half the axial luminous intensity.
5. The chromaticity coordinates (x, y) is derived from the 1931 CIE chromaticity diagram.
6. Precautions in handling:
‧
‧
‧
‧
‧
‧
When soldering, leave 2mm of minimum clearance from the resin to the soldering point.
Dipping the resin to solder must be avoided.
Correcting the soldered position after soldering must be avoided.
In soldering, do not apply any stress to the lead frame particularly when heated.
Lead forming must be done before soldering.
It is necessary to cut the lead frame at normal temperature.
7. Caution in ESD:
Static Electricity and surge damages the LED. It is recommend to use a wrist band or
anti-electrostatic glove when handling the LED. All devices, equipment and machinery
must be properly grounded.
Part No. : LTW-2S3D7S
BNS-OD-C131/A4
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LITE-ON TECHNOLOGY CORPORATION
P r o p e r t y o f L i t e - O n O n l y
Typical Electrical / Optical Characteristics Curves
℃
(25
Ambient Temperature Unless Otherwise Noted)
Part No. : LTW-2S3D7S
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LITE-ON TECHNOLOGY CORPORATION
P r o p e r t y o f L i t e - O n O n l y
Packing Spec
500 or 250 pcs per packing bag
10 packing bags per inner carton
Total 5,000 pcs per inner carton
8 Inner cartons per outer carton
Total 40,000 pcs per outer carton
Part No. : LTW-2S3D7S
BNS-OD-C131/A4
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LITE-ON TECHNOLOGY CORPORATION
P r o p e r t y o f L i t e - O n O n l y
BIN Table Specifications
Luminous Intensity (mcd) , If = 20mA
Iv
Bin
min.
max.
13000
17000
Y1
Z1
10000
13000
Luminous Intensity Measurement allowance is 15%
Vf Spec. Table for Reference
Forward Voltage (V) , If = 20mA
Vf
Bin
min.
2.75
3.00
3.25
3.50
max.
3.00
3.25
3.50
3.60
3H
4H
5H
6H
Forward Voltage Measurement allowance is 15%
Hue Spec. Table for Reference
Hue
Chromaticity Coordinates
Bin
x
y
x
y
x
y
x
y
0.370
0.450
0.330
0.400
0.306
0.369
0.285
0.344
0.370
0.350
0.330
0.300
0.306
0.269
0.285
0.244
0.330
0.300
0.306
0.269
0.285
0.244
0.250
0.200
0.330
0.400
0.306
0.369
0.285
0.344
0.250
0.300
40
50
60
70
Color Coordinates Measurement allowance is ±0.01
C.I.E. 1931 Chromaticity Diagram
Part No. : LTW-2S3D7S
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LITE-ON TECHNOLOGY CORPORATION
P r o p e r t y o f L i t e - O n O n l y
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 storage ambient for the LEDs should not exceed 30°C temperature or 70% relative humidity. It is
recommended that LEDs out of their original packaging are used within three months.
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 dessicator with nitrogen ambient.
3. Cleaning
Use alcohol-based cleaning solvents such as isopropyl alcohol to clean the LEDs if necessary.
4. Lead Forming & Assembly
During lead forming, the leads should be bent at a point at least 3mm from the base of LED lens. Do not use
the base of the leadframe as a fulcrum during forming. Lead forming must be done before soldering at normal
temperature. During assembly on PCB, use minimum clinch force possible to avoid excessive mechanical stress
5. Soldering
When soldering, leave a minimum of 2mm clearance from the base of the lens to the soldering point.
Dipping the lens into the solder must be avoided.
Do not apply any external stress to the lead frame during soldering while the LED is at high temperature.
Recommended soldering condition:
Soldering iron
Wave soldering
100°C Max.
Temperature
300°C Max.
Pre-heat
Soldering time
3 sec. Max.
Pre-heat time
Solder wave
Soldering time
60 sec. Max.
260°C Max.
5 sec. Max.
(one time only)
Note: Excessive soldering temperature and/or time might result in deformation of the LED lens or catastrophic
failure of the LED. IR re-flow is not suitable process for through hole type LED lamp production.
6. 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.
(A) Recommended circuit.
Circuit model A
Circuit model B
(B) The brightness of each LED might
appear different due to the differences
in the I-V characteristics of those
LEDs
LED
LED
Part No. : LTW-2S3D7S
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LITE-ON TECHNOLOGY CORPORATION
P r o p e r t y o f L i t e - O n O n l y
7. ESD (Electrostatic Discharge)
Static Electricity or power surge will damage the LED.
Suggestions to prevent ESD damage.
■ Use 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.
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 ionize 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?
8. Others
White LED is materialized by combining blue LED and phosphors. Color of White LED is changed a little by
an operating current.
The appearance and specifications of the product may be modified for improvement, without prior notice.
Part No. : LTW-2S3D7S
BNS-OD-C131/A4
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