Through Hole Lamp
Product Data Sheet
LTW-4EMFDNJ2
Spec No.: DS20-2011-0101
Effective Date: 06/15/2011
Revision: -
LITE-ON DCC
RELEASE
BNS-OD-FC001/A4
LITE-ON Technology Corp. / Optoelectronics
No.90,Chien 1 Road, Chung Ho, New Taipei City 23585, Taiwan, R.O.C.
Tel: 886-2-2222-6181 Fax: 886-2-2221-1948 / 886-2-2221-0660
http://www.liteon.com/opto
LITE-ON TECHNOLOGY CORPORATION
Property of Lite-On Only
Features
* Lead (Pb) free product - RoHS compliant
* Low power consumption.
* High efficiency & reliability.
* Versatile mounting on p.c. board or panel.
* I.C. compatible/low current requirement.
* Low profile for indicator application
Package Dimensions
Part No.
Lens Color
Emitted Color
LTW-4EMFDNJ2
White Diffused
AlInGaP Orange/InGaN White
NOTES:
1. All dimensions are in millimeters (inches).
2. Tolerance is ±0.25mm(.010") unless otherwise noted.
3. Protruded resin under lens edge is 0.4mm (.016") Max.
4. Lead spacing is measured where the leads emerge from the package.
5. Specifications are subject to change without notice.
PART NO.: LTW-4EMFDNJ2
BNS-OD-C131/A4
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LITE-ON TECHNOLOGY CORPORATION
Property of Lite-On Only
Absolute Maximum Ratings at Ta=25℃
PARAMETER
Power Dissipation
MAXIMUM RATING
Orange
78
White
108
UNIT
mW
Peak Forward Current
(1/10 Duty Cycle, 0.1ms Pulse Width)
90
mA
DC Forward Current
30
mA
Reverse Voltage
5
V
Operating Temperature Range
-40℃ to + 85℃
Storage Temperature Range
-40℃ to + 85℃
Lead Soldering Temperature
[2.0mm(.08") From Body]
PART NO.: LTW-4EMFDNJ2
BNS-OD-C131/A4
260℃ for 5 Seconds*
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LITE-ON TECHNOLOGY CORPORATION
Property of Lite-On Only
Electrical / Optical Characteristics at Ta=25℃
PARAMETER
Luminous Intensity
SYMBOL
MIN.
TYP.
MAX.
Orange
37.6
(110)
192.4
White
400
(520)
1150
2θ1/2
-
H 130
V 120
Wd
(Orange)
600
605
x
-
0.28
-
y
-
0.26
-
Orange
1.8
2.0
2.6
White
2.7
3.2
3.6
Iv
Viewing Angle
Dominant
Wavelength/
Chromaticity
Coordinates
Forward Voltage
VF
UNIT
TEST CONDITION
mcd
IF = 20mA
Note 1,2,3
Iv Spec. Table
-
deg
Note 4
610
nm
IF = 20mA
Note 5
Hue Spec. Table &
Chromaticity Diagram
V
IF = 20mA
NOTE:
1. The luminous intensity and chromaticity coordinates are measured on the mechanical axis of the
lamp package according to Measurement of Averaged LED Intensity per CIE 127.
2. The Iv guarantee should be added ±15% tolerance.
3. Iv classification code is marked on each packing bag.
4. θ1/2 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.
PART NO.: LTW-4EMFDNJ2
BNS-OD-C131/A4
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LITE-ON TECHNOLOGY CORPORATION
Property of Lite-On Only
Typical Electrical / Optical Characteristics Curves
(25℃ Ambient Temperature Unless Otherwise Noted)
Spectrum
Forward Voltage vs.
Forward Current
Ambient Temperature vs.
Forward Current
Forward Current vs.
Relative Luminous Intensity
Directivity
PART NO.: LTW-4EMFDNJ2
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LITE-ON TECHNOLOGY CORPORATION
Property of Lite-On Only
Packing Specification
500 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-4EMFDNJ2
BNS-OD-C131/A4
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LITE-ON TECHNOLOGY CORPORATION
Property of Lite-On Only
Optical/Electrical Bin Table
Iv Spec. Table for Reference
Luminous Intensity (mcd) , If=20mA
Iv Bin Rank
White
Orange
min. / max.
min. / max.
L
400 - 520
37.6 – 192.4
M
520 - 680
37.6 – 192.4
N
680 - 880
37.6 – 192.4
P
880 - 1150
37.6 – 192.4
Luminous Intensity Measurement allowance is 15%
Hue Spec. Table for Reference
Hue
Rank
x
0.2700
0.2700
0.2500
0.2500
y
0.2455
0.2780
0.2500
0.2175
x
0.2700
0.2700
0.2500
0.2500
y
0.2455
0.2130
0.1850
0.2175
x
0.2700
0.2700
0.2900
0.2900
y
0.2455
0.2785
0.3060
0.2735
x
0.2700
0.2700
0.2900
0.2900
y
0.2455
0.2130
0.2410
0.2735
x
0.2900
0.3100
0.3100
0.2900
y
0.3060
0.3355
0.3030
0.2735
x
0.2900
0.3100
0.3100
0.2900
y
0.2410
0.2705
0.3030
Color Coordinates Measurement allowance is ±0.01
0.2735
A1
A2
B1
B2
C1
C2
PART NO.: LTW-4EMFDNJ2
BNS-OD-C131/A4
Chromaticity Coordinates Limits, If=20mA
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LITE-ON TECHNOLOGY CORPORATION
Property of Lite-On Only
C.I.E. 1931 Chromaticity Diagram
PART NO.: LTW-4EMFDNJ2
BNS-OD-C131/A4
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LITE-ON TECHNOLOGY CORPORATION
Property of Lite-On Only
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
Temperature
350°C Max.
Pre-heat
100°C Max.
Soldering time
3 sec. Max.
Pre-heat time
60 sec. Max.
(one time only)
Solder wave
260°C Max.
Soldering time
5 sec. Max.
Note: Excessive soldering temperature and/or time might result in deformation of the LED lens or
catastrophic failure of the LED.
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.
Circuit model A
LED
PART NO.: LTW-4EMFDNJ2
BNS-OD-C131/A4
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
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LITE-ON TECHNOLOGY CORPORATION
Property of Lite-On Only
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 light up” at low currents. To verify for ESD damage, check for “light up” 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 wear 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 recycle?
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-4EMFDNJ2
BNS-OD-C131/A4
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