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LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only
LED SMD
Pb
Lead-Free Parts
LG-020WK-DT-N12
DATA SHEET
DOC. NO : REV. DATE : :
QW0905-LG-020WK-DT-N12 A 20 - Jun - 2006
LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only
PART NO. LG-020WK-DT-N12 Page 1/13
Features:
1. Side view white LED. 2. white SMT package. 3. Leadframe package with individual 2 pin. 4.Wide viewing angle. 5.Soldering methods:IR reflow soldering. 6.Feature of the device:more light due to higher optical efficiency;extremely wide viewing angle;ideal for backlighting and coupling in light guide. 7.ESD protection. 8.Pb free Descriptions: The LG-020 SMD has wide viewing angle,low power consumption and white LEDs are devices which are materialized by combing blue LEDs and special phos phors.This feature makes the LED ideal for light guide application.
Applications:
1. LCD back light. 2. Mobile phones. 3. Indicators. 4. Switch lights.
Device Selection Guide:
PART NO LG-020WK-DT-N12 MATERIAL InGaN/GaN COLOR Emitted White Lens Yellow Diffused
LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only
PART NO. LG-020WK-DT-N12 Page 2/13
Package Dimensions
0.7
0.63
Cathode
1.9 3.6 3.8 2.3 0.75 1.2
0.63
0.7
0.45 0.6
Andoe
Polarity
Note : 1.All dimension are in millimeter tolerance is O 0.1mm unless otherwise noted. 2.Specifications are subject to change without notice.
Recommended Soldering Pad Dimensions
1.5
2.1
1.5 0.85
Note : The tolerances unless mentioned is O 0.1mm,AngleO 0.5. Unit=mm.
LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only
PART NO. LG-020WK-DT-N12 Page 3/13
Absolute Maximum Ratings at Ta=25 J
Parameter Power Dissipation Peak Forward Current Duty 1/10@10KHz Forward Current Reverse Current @5V Electrostatic Discharge Operating Temperature Storage Temperature Soldering Temperature
Symbol PD IFP IF Ir ESD Topr Tstg Tsol
Ratings 80 100 20 50 2000 -40 ~ +85 -40 ~ +90 Max 260J for 5 sec Max
UNIT mW mA mA
g A V J J
Typical Electrical & Optical Characteristics (Ta=25 J )
Items Chromaticity Coordinates
Symbol
CIE_x CIE_y
Min. ------960 -------
Typ. 0.3 0.29 1200 3.3 110
Max. ----------------
Unit ----
Condition IF=20mA
---mcd V deg IF=20mA IF=20mA IF=20mA
Luminous Intensity Forward Voltage Viewing Angle
Iv VF 2c 1/2
Note : 1.The forward voltage data did not including 0.1V testing tolerance. 2. The luminous intensity data did not including 10% testing tolerance.
LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only
PART NO. LG-020WK-DT-N12 Page 4/13
Luminous Intensity Classification (at 20mA)
Iv(mvd) Group BIN CODE Min. V-21 V-22 V-23 V-24 W-11 W-12 W-13 W-14 W-15 W-21 W-22 W-23 W-24 W-25 950 1000 1050 1100 1150 1200 1250 1300 1350 1400 1450 1500 1550 1600 Max. 1000 1050 1100 1150 1200 1250 1300 1350 1400 1450 1500 1550 1600 1650
V-2
W-1
W-2
Forward Voltage Classification (at 20mA)
BIN CODE 1 2 3 4
Vf(v) Min. 2.8 3.0 3.2 3.4 Max. 3.0 3.2 3.4 3.6
LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only
PART NO. LG-020WK-DT-N12 Page 5/13
Chromaticity Coordinates Specifications For Bin Grading
Coordinate CIE BLOCK LEFT x A31 y x A33 y x B51 N1 B53 y x y x B61 y x B63 y x A32 y x A34 y x B52 N1 B54 y x y x B62 y x B64 y 0.264 0.267 0.276 0.281 0.287 0.295 0.297 0.305 0.307 0.315 0.319 0.327 0.272 0.258 0.282 0.272 0.292 0.286 0.3 0.295 0.309 0.305 0.319 0.316 BOTTOM 0.272 0.258 0.282 0.272 0.292 0.286 0.3 0.295 0.309 0.305 0.319 0.316 0.28 0.248 0.288 0.262 0.296 0.276 0.304 0.285 0.311 0.294 0.32 0.305 RIGHT 0.282 0.272 0.292 0.286 0.3 0.295 0.309 0.305 0.319 0.316 0.33 0.329 0.288 0.262 0.296 0.276 0.304 0.285 0.311 0.294 0.32 0.305 0.33 0.318 TOP 0.276 0.281 0.287 0.295 N2 0.297 B82 0.305 0.307 B84 0.315 0.319 A41 0.327 0.33 0.339 N2 0.282 0.272 0.292 0.286 0.3 B83 0.295 0.309 0.305 0.319 0.316 0.33 0.329 B81 B73 B71 B74 x B72 y x y x y x y x y x y x y x y x y CIE BLOCK LEFT 0.288 0.262 0.296 0.276 0.304 0.285 0.311 0.294 0.28 0.248 0.291 0.257 0.3 0.268 0.306 0.277 0.313 0.285 BOTTOM 0.291 0.257 0.3 0.268 0.306 0.277 0.313 0.285 0.287 0.24 0.295 0.251 0.303 0.261 0.309 0.268 0.315 0.276 RIGHT 0.3 0.268 0.306 0.277 0.313 0.285 0.321 0.294 0.295 0.251 0.303 0.261 0.309 0.268 0.315 0.276 0.322 0.285 TOP 0.296 0.276 0.304 0.285 0.311 0.294 0.32 0.305 0.288 0.262 0.3 0.268 0.306 0.277 0.313 0.285 0.321 0.294 Coordinate
LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only
PART NO. LG-020WK-DT-N12 Page 6/13
CIE Chromaticity Diagram
B63 B61 B64 B53 B62 B51 B54 B84 A33 B52 B82 B83
A31
B74 B81 A34 B72 B73 A32 B71 A41
Notes: 1.Tolerance of CIE Chromaticity coordinate(x.y) 0.003.
LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only
PART NO. LG-020WK-DT-N12 Page 7/13
Typical Electro-Optical Characteristics Curve
WK CHIP
Fig.1 Forward current vs. Forward Voltage Fig.2 Relative Intensity vs. Forward Current
3.0
1000
Forward Current(mA)
100 10 1 01 1.0 2.0 3.0 4.0 5.0
Relative Intensity Normalize @20mA
2.5 2.0 1.5 1.0 0.5 0.0 1 10 100 1000
Forward Voltage(V) Fig.3 Forward Voltage vs. Temperature
Forward Current(mA) Fig.4 Relative Intensity vs. Temperature
Relative Intensity@20mA Normalize @25J
100
Forward Voltage@20mA Normalize @25J
1.2
3.0 2.5 2.0 1.5 1.0 0.5 0.0 -40 -20 0 20 40 60 80 100
1.1 1.0
0.9
0.8 -40 -20 0 20 40 60 80
Ambient Temperature(J )
Ambient Temperature(J )
Fig.5 Luminous Spectrum(Ta=25J ) SPECTRAL RADIANCE
100 80
Intensity
60 40 20 0 400 500 600 700 800
Wavelength (nm)
LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only
PART NO. LG-020WK-DT-N12 Page 8/13
Carrier Type Dimensions
2 4
1. 5
1.75
Cathode
5.5 12
4
Andoe
4 0.279 0.72 Polarity 1.35
Note : The tolerances unless mentioned is O 0.1mm,Angle O 0.5. Unit=mm.
E Packing Specifications
Label
Aluminum Moist-Proof bag
Label
Part No. LG-020WK-DT-N12
Description 12mm tape,7"reel
Quantity/Reel 5000 devices
LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only
PART NO. LG-020WK-DT N12 Page 9/13
Label Explanation
uOqlu*~N/|-1/2q
LIGITEK LED
LIGITEK ELECTRONICS CO., LTD.
Pb
BIN : Luminous Intensity HUE : Chromaticity Coordinates (CIE_x , CIE_y)
PART NO. : LG-020WK-DT-N12 LOT NO. : MC9500498 Q'TY(PCS) : 5000 PCS BIN/HUE : W11/ B52
Vf:3.0 - 3.2
3.0 - 3.2 : Forward Voltage
Reel Dimensions
2.5O 0.5
0.8
0.6
0.4
0.2
178O 1.5
60O 1.0
0.4
r 13.5O 1.0
0.2
0.6
0.8
13.2O 1.0 16.2O 1.0
LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only
PART NO. LG-008WK-DT-N12 Page 10/13
Box Explanation
1. 5 BAG / INNER BOX 2. INNER BOX SIZE : L X W X H 23cm X 8.5cm x 26cm
H W
L
3. 10 INNER BOXES / CARTON 4. CARTON SIZE : L X W X H 49cm X 46cm x 29cm
L
W
H
LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only
PART NO. LG-020WK-DT-N12 Soldering Iron:
Basic spec is O 5 seconds when 260 J . Power dissipation of iron should be smaller than 25W,and temperature should be controllable. Surface temperature of the device should be under 280 J for 3 seconds.
Page 11/13
Reflow Temp/Time(Pb-free)
260 C Max. 5 sec. Max.
1 - 5 C / sec 180 - 200C Pre-heating 1 - 5 C / sec
120sec.Max.
60sec.Max. Above 220C
Reflow Temp/Time(Lead solder)
Temp. (J ) 240
Rising +5J /sec Cooling -5J /sec
150 120
Preheat
60 ~ 120 sec
5sec
Time
Note: 1.Reflow soldering should not be done more than two times. 2.When soldering,do not put stress on the LEDs during heating. 3.After soldering,do not warp the circuit board.
LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only
PART NO. LG-020WK-DT-N12 Precautions For Use: Storage time:
1.The operation of Temperatures and RH are : 5 J ~35J ,RH60%. 2.Once the package is opened, the products should be used within a week. Otherwise, they should be kept in a damp proof box with descanting agent. Considering the tape life, we suggest our customers to use our products within a year(from production date). 3.If opened more than one week in an atmosphere 5 J ~ 35J ,RH60%, they should be treated at 60JO 5 J fo r 15hrs.
Page 12/13
Drive Method:
LED is a current operated device, and therefore, requirer some kind of current limiting incorporated into the driver circuit. This current limiting typically takes the form of a current limiting resistor placed in series with the LED. Consider worst case voltage variations than could occur across the current limiting resistor. The forward current should not be allowed to change by more than 40 % of its desired value.
Circuit model A LED
Circuit model B LED
(A) Recommended circuit. (B) The difference of brightness between LED could be found due to the VF-IF characteristics of LED.
Cleaning:
Use alcohol-based cleaning solvents such as isopropyl alcohol to clean the LED.
ESD(Electrostatic Discharge):
Static Electricity or power surge will damage the LED. Use of a conductive wrist band or anti-electrosatic glove is recommended when handing these LED. All devices, equipment and machinery must be properly grounded.
LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only
PART NO. LG-020WK-DT-N12 Reliability Test:
(1)Test items and results Classification Test Item Test Condition
1.Ta=Under Room Temperature As Per Data Sheet Maximum Rating. 2.If=20mA 3.t=1000 hrs
Page 13/13
Sample Size
Operating Life Test
22
High Temperature Storage Test Endurance Test Low Temperature Storage Test
1.Ta=105 J 5J 2.t=500 hrs
22
1.Ta=-40 JO 5J 2.t=1000 hrs
22
High Temperature High Humidity Storage Test
1.IR-Reflow In-Board, 2 Times 2.Ta=85J 5J 3.RH=90 %~95% 4.t=500hrs2hrs 1.IR-Reflow In-Board,2 times 2.Ta=105 J 5J & -40 J 5J (30min) (30min) 3.total 100 cycles
22
Thermal Shock Test
22
Environmental Test
Reflow Soldering Test
1.T.Sol=260 JO 5J 2.Dwell Time= 10 Max .
22
Temperature Cycling
1.105 J ~ 25 J ~ - 40 J 30mins 15mins 30mins 2.100 Cyeles
22
(2)Criteria for judging the damage
Criteria for Judgement Item Symbol Test Conditions Min. Forward Voltage Reverse Current Luminous Intensity
Note: 1.U.S.L.:Upper Standard Level. 2.L.S.L.:Lower Standard Level.
Max. U.S.L x1.2 U.S.L x2.0 -
Vf Ir Iv
If=20mA Vr=5V If=20mA
L.S.L x 0.5

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