LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only LED SMD Pb Lead-Free Parts LG-020WK-DT-N12 DATA SHEET DOC. NO : QW0905-LG-020WK-DT-N12 REV. : A DATE : 20 - Jun - 2006 LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only Page 1/13 PART NO. LG-020WK-DT-N12 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 MATERIAL LG-020WK-DT-N12 InGaN/GaN COLOR Emitted Lens White Yellow Diffused LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only Page 2/13 PART NO. LG-020WK-DT-N12 0.7 0.63 Package Dimensions 0.7 0.63 2.3 3.8 3.6 1.9 Cathode 0.75 0.45 0.6 1.2 Andoe Polarity Note : 1.All dimension are in millimeter tolerance is ±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 ±0.1mm,Angle±0.5. Unit=mm. LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only Page 3/13 PART NO. LG-020WK-DT-N12 Absolute Maximum Ratings at Ta=25 ℃ Symbol Ratings UNIT Power Dissipation PD 80 mW Peak Forward Current Duty 1/10@10KHz IFP 100 mA Forward Current IF 20 mA Reverse Current @5V Ir 50 μA Electrostatic Discharge ESD ± 2000 V Operating Temperature Topr -40 ~ +85 ℃ Storage Temperature Tstg -40 ~ +90 ℃ Soldering Temperature Tsol Parameter Max 260℃ for 5 sec Max Typical Electrical & Optical Characteristics (Ta=25 ℃) Symbol Min. Typ. Max. Unit CIE_x ---- 0.3 ---- ---- CIE_y ---- 0.29 ---- ---- Luminous Intensity Iv 960 1200 ---- mcd IF=20mA Forward Voltage VF ---- 3.3 ---- V IF=20mA 2θ 1/2 ---- 110 ---- deg IF=20mA Items Chromaticity Coordinates Viewing Angle Condition IF=20mA 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 Page 4/13 PART NO. LG-020WK-DT-N12 Luminous Intensity Classification (at 20mA) Iv(mvd) Group BIN CODE V-2 W-1 W-2 Min. Max. V-21 V-22 V-23 V-24 W-11 W-12 W-13 W-14 W-15 W-21 W-22 W-23 950 1000 1050 1100 1150 1200 1250 1300 1350 1400 1000 1050 1100 1150 1200 1250 1300 1350 1400 1450 1500 1450 1500 1550 W-24 W-25 1550 1600 1600 1650 Forward Voltage Classification (at 20mA) BIN CODE 1 2 3 4 Vf(v) Min. Max. 2.8 3.0 3.0 3.2 3.4 3.6 3.2 3.4 LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only PART NO. LG-020WK-DT-N12 Page 5/13 Chromaticity Coordinates Specifications For Bin Grading Coordinate Coordinate CIE BLOCK CIE BLOCK x A31 A33 N1 B53 B61 B63 A34 B52 N1 B54 B62 B64 RIGHT TOP 0.264 0.272 0.282 0.276 0.267 0.258 0.272 0.281 x 0.276 0.282 0.292 0.287 0.281 0.272 0.286 0.295 0.287 0.292 0.3 y 0.295 0.286 0.295 0.305 x 0.297 0.3 0.309 0.307 y B74 0.297 B82 B84 0.305 0.295 0.305 0.315 x 0.307 0.309 0.319 0.319 y 0.315 0.305 0.316 0.327 x 0.319 0.319 0.33 0.33 y B72 N2 y x A32 BOTTOM y x B51 LEFT 0.327 0.316 0.329 A41 B71 0.339 N2 0.272 0.28 0.288 0.282 y 0.258 0.248 0.262 0.272 x 0.282 0.288 0.296 0.292 y 0.272 0.262 0.276 0.286 x 0.292 0.296 0.304 0.3 y 0.286 0.276 0.285 0.295 x 0.3 0.304 0.311 0.309 y 0.295 0.285 0.294 0.305 x 0.309 0.311 0.32 0.319 y 0.305 0.294 0.305 0.316 x 0.319 0.32 0.33 0.33 y 0.316 0.305 0.318 0.329 B73 B81 B83 LEFT BOTTOM x 0.288 y RIGHT TOP 0.291 0.3 0.296 0.262 0.257 0.268 0.276 x 0.296 0.3 0.306 0.304 y 0.276 0.268 0.277 0.285 x 0.304 0.306 0.313 0.311 y 0.285 0.277 0.285 0.294 x 0.311 0.313 0.321 0.32 y 0.294 0.285 0.294 0.305 x 0.28 0.287 0.295 0.288 y 0.248 0.24 0.251 0.262 x 0.291 0.295 0.303 0.3 y 0.257 0.251 0.261 0.268 x 0.3 0.303 0.309 0.306 y 0.268 0.261 0.268 0.277 x 0.306 0.309 0.315 0.313 y 0.277 0.268 0.276 0.285 x 0.313 0.315 0.322 0.321 y 0.285 0.276 0.285 0.294 LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only Page 6/13 PART NO. LG-020WK-DT-N12 CIE Chromaticity Diagram B63 B61 B64 B53 B62 B51 B54 B84 A33 B52 B82 B83 B74 B81 A34 B72 B73 A32 B71 A31 A41 Notes: 1.Tolerance of CIE Chromaticity coordinate(x.y) ±0.003. LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only Page 7/13 PART NO. LG-020WK-DT-N12 Typical Electro-Optical Characteristics Curve WK CHIP Fig.1 Forward current vs. Forward Voltage Fig.2 Relative Intensity vs. Forward Current 3.0 Relative Intensity Normalize @20mA Forward Current(mA) 1000 100 10 1 01 2.5 2.0 1.5 1.0 0.5 0.0 1.0 2.0 3.0 4.0 5.0 1 10 Fig.4 Relative Intensity vs. Temperature 1.2 Relative Intensity@20mA Normalize @25 ℃ Forward Voltage@20mA Normalize @25 ℃ Fig.3 Forward Voltage vs. Temperature 1.1 1.0 0.9 0.8 -20 0 20 40 60 80 100 SPECTRAL RADIANCE 100 Intensity 80 60 40 20 0 600 Wavelength (nm) 700 2.5 2.0 1.5 1.0 0.5 0.0 -20 0 20 40 60 80 Ambient Temperature( ℃) Fig.5 Luminous Spectrum(Ta=25 ℃) 500 3.0 -40 Ambient Temperature(℃) 400 1000 Forward Current(mA) Forward Voltage(V) -40 100 800 100 LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only PART NO. LG-020WK-DT-N12 Page 8/13 2 4 1. 5 1.75 Carrier Type Dimensions 4 12 5.5 Cathode Andoe 0.279 4 0.72 Polarity 1.35 Note : The tolerances unless mentioned is ±0.1mm,Angle ± 0.5. Unit=mm. • Packing Specifications Label Aluminum Moist-Proof bag Label Part No. Description Quantity/Reel LG-020WK-DT-N12 12mm tape,7"reel 5000 devices LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only PART NO. LG-020WK-DT N12 Page 9/13 Label Explanation 立碁電子工業股份有限公司 LIGITEK LED LIGITEK ELECTRONICS CO., LTD. Pb BIN : Luminous Intensity PART NO. : LG-020WK-DT-N12 HUE : Chromaticity Coordinates (CIE_x , CIE_y) LOT NO. : MC9500498 Q'TY(PCS) : 5000 PCS BIN/HUE : W11/ B52 3.0 - 3.2 : Forward Voltage Vf:3.0 - 3.2 Reel Dimensions 0.2 0.4 0.8 0.8 0.6 0.2 0.4 0.6 2.5±0.5 178±1.5 60±1.0 13.2±1.0 ψ13.5±1.0 16.2± 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 Page 11/13 PART NO. LG-020WK-DT-N12 Soldering Iron: Basic spec is ≦ 5 seconds when 260 ℃. Power dissipation of iron should be smaller than 25W,and temperature should be controllable. Surface temperature of the device should be under 280 ℃for 3 seconds. Reflow Temp/Time(Pb-free) 260° C Max. 5 sec. Max. 1 - 5° C / sec 180 - 200°C Pre-heating 1 - 5° C / sec 120sec.Max. 60sec.Max. Above 220°C Reflow Temp/Time(Lead solder) Temp. (℃) 240 Rising +5℃/sec 150 Cooling -5℃ /sec Preheat 120 60 ~ 120 sec 5sec 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. Time LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only PART NO. LG-020WK-DT-N12 Page 12/13 Precautions For Use: Storage time: 1.The operation of Temperatures and RH are : 5 ℃~35℃,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 ℃ ~ 35℃,RH60%, they should be treated at 60 ℃± 5 ℃fo r 15hrs. 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 Circuit model B LED 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 Page 13/13 Reliability Test: (1)Test items and results Classification Test Item Test Condition Sample Size Operating Life Test 1.Ta=Under Room Temperature As Per Data Sheet Maximum Rating. 2.If=20mA 3.t=1000 hrs 22 High Temperature Storage Test 1.Ta=105 ℃± 5℃ 2.t=500 hrs 22 Low Temperature Storage Test 1.Ta=-40 ℃±5 ℃ 2.t=1000 hrs 22 High Temperature High Humidity Storage Test 1.IR-Reflow In-Board, 2 Times 2.Ta=85℃± 5℃ 3.RH=90 %~95% 4.t=500hrs±2hrs 22 1.IR-Reflow In-Board,2 times 2.Ta=105 ℃±5℃& -40 ℃± 5℃ (30min) (30min) 3.total 100 cycles 22 1.T.Sol=260 ℃±5 ℃ 2.Dwell Time= 10 Max . 22 1.105 ℃ ~ 25 ℃ ~ - 40 ℃ 30mins 15mins 30mins 2.100 Cyeles 22 Endurance Test Thermal Shock Test Environmental Test Reflow Soldering Test Temperature Cycling (2)Criteria for judging the damage Criteria for Judgement Item Symbol Test Conditions Min. Max. Forward Voltage Vf If=20mA - U.S.L x1.2 Reverse Current Ir Vr=5V - U.S.L x2.0 Luminous Intensity Iv If=20mA L.S.L x 0.5 - Note: 1.U.S.L.:Upper Standard Level. 2.L.S.L.:Lower Standard Level.