LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only LED SMD Pb Lead-Free Parts LG-020WKZ-DT DATA SHEET DOC. NO : QW0905-LG-020WKZ-DT REV. : B DATE : 01 - Dec. - 2006 LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only PART NO. LG-020WKZ-DT 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 MATERIAL LG-020WKZ-DT InGaN/GaN COLOR Emitted Lens White Yellow Diffused LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only Page 2/13 PART NO. LG-020WKZ-DT 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-020WKZ-DT 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 ℃) Items Symbol Min. Typ. Max. Unit CIE_x ---- 0.3 ---- ---- Condition IF=20mA Chromaticity Coordinates CIE_y ---- 0.31 ---- ---- Luminous Intensity Iv 960 1050 ---- mcd IF=20mA Forward Voltage VF ---- 3.3 ---- V IF=20mA 2θ 1/2 ---- 110 ---- deg IF=20mA Viewing Angle 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-020WKZ-DT Page 4/13 Luminous Intensity Classification (at 20mA) Iv(mvd) BIN CODE V-2 W-1 Min. Max. 960 1160 1160 1400 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-020WKZ-DT Page 5/13 Chromaticity Coordinates Specifications For Bin Grading BIN B1 B2 B3 B4 B5 X Y 0.26 0.265 0.26 0.225 0.27 0.240 0.27 0.280 0.27 0.280 0.27 0.240 0.28 0.255 0.28 0.295 0.28 0.295 0.28 0.255 0.29 0.270 0.29 0.310 0.29 0.310 0.29 0.270 0.30 0.285 0.30 0.325 0.30 0.325 0.30 0.285 0.31 0.300 0.31 0.340 LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only Page 6/13 PART NO. LG-020WKZ-DT CIE Chromaticity Diagram B5 B4 B B3 B2 B1 Notes: 1.Tolerance of CIE Chromaticity coordinate(x.y) ±0.01. LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only Page 7/13 PART NO. LG-020WKZ-DT 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-020WKZ-DT Page 8/13 2 4 1. 5 1.75 Carrier Tape Dimensions 4 12 5.5 Cathode Andoe 4 0.279 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-020WKZ-DT 12mm tape,7"reel 5000 devices LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only PART NO. LG-020WKZ-DT 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-020WKZ-DT HUE : Chromaticity Coordinates (CIE_x , CIE_y) LOT NO. : GS1-6B0099 Q'TY(PCS) : 5000 PCS BIN/HUE : V-2 / B3 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-020WKZ-DT 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-020WKZ-DT Page 11/13 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-020WKZ-DT 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 at ＜30℃ and ＜90% relative humidity(RH) (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 Page 13/13 PART NO. LG-020WKZ-DT 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.