LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only LED ARRAY Pb Lead-Free Parts LA79B-1/4G-S4-PF DATA SHEET DOC. NO : QW0905-LA79B-1/4G-S4-PF REV. : B DATE : 28 - Nov.- 2005 LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only PART NO. LA79B-1/4G-S4-PF Page 1/5 Package Dimensions 3.5±0.5 4.4 10.7 ψ2.9X4 1st 2nd 20.3 3rd 1.5 5.08 4th 2.5 3.5±0.5 □0.5 TYP 2.54TYP 2.8±0.5 + - 4.7±0.5 6.6±0.5 8.5±0.5 LG2641/S40-PF 2.9 3.3 3.1 4.3 1.5 MAX 28.5MIN □0.5 TYP 1.0MIN 2.54TYP + - Note : 1.All dimension are in millimeter tolerance is ± 0.25mm unless otherwise noted. 2.Specifications are subject to change without notice. LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only PART NO. LA79B-1/4G-S4-PF Page 2/5 Absolute Maximum Ratings at Ta=25 ℃ Absolute Maximum Ratings Parameter Symbol UNIT G Forward Current IF 30 mA Peak Forward Current Duty 1/10@10KHz IFP 120 mA Power Dissipation PD 100 mW Reverse Current @5V Ir 10 μA Operating Temperature Topr -40 ~ +85 ℃ Storage Temperature Tstg -40 ~ +100 ℃ Typical Electrical & Optical Characteristics (Ta=25 ℃) PART NO COLOR MATERIAL Emitted LA79B-1/4G-S4-PF GaP Peak Spectral Forward voltage wave halfwidth length △λ nm @20mA(V) λPnm @10mA(mcd) Viewing angle 2 θ 1/2 (deg) Min. Max. Min. Typ. Lens Green Green Transparent 565 Luminous intensity 30 1.7 Note : 1.The forward voltage data did not including ±0.1V testing tolerance. 2. The luminous intensity data did not including ± 15% testing tolerance. 2.6 12 30 40 LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only Page 3/5 PART NO. LA79B-1/4G-S4-PF Typical Electro-Optical Characteristics Curve G CHIP Fig.1 Forward current vs. Forward Voltage Fig.2 Relative Intensity vs. Forward Current 3.5 Relative Intensity Normalize @20mA Forward Current(mA) 1000 100 10 1.0 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0.1 1.0 2.0 3.0 4.0 5.0 1.0 10 1.2 1.1 1.0 0.9 0.8 0 20 40 60 80 100 Fig.5 Relative Intensity vs. Wavelength 1.0 0.5 0.0 500 550 600 Wavelength (nm) 3.0 2.5 2.0 1.5 1.0 0.5 0.0 -40 -20 0 20 40 60 Ambient Temperature( ℃) Ambient Temperature( ℃) Relative Intensity@20mA Fig.4 Relative Intensity vs. Temperature Relative Intensity@20mA Normalize @25℃ Forward Voltage@20mA Normalize @25℃ Fig.3 Forward Voltage vs. Temperature -20 1000 Forward Current(mA) Forward Voltage(V) -40 100 650 80 100 LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only PART NO. LA79B-1/4G-S4-PF Page 4/5 Soldering Condition(Pb-Free) 1.Iron: Soldering Iron:30W Max Temperature 350° C Max Soldering Time:3 Seconds Max(One Time) Distance:2mm Min(From solder joint to case) 2.Wave Soldering Profile Dip Soldering Preheat: 120° C Max Preheat time: 60seconds Max Ramp-up 2°C/sec(max) Ramp-Down:-5° C/sec(max) Solder Bath:260°C Max Dipping Time:3 seconds Max Distance:2mm Min(From solder joint to case) Temp(° C) 260° C3sec Max 260° 5° /sec max 120° 25° 0° 0 2° /sec max Preheat 60 Seconds Max 50 100 150 Time(sec) LIGITEK ELECTRONICS CO.,LTD. Property of Ligitek Only PART NO. LA79B-1/4G-S4-PF Page 5/5 Reliability Test: Test Item Test Condition Description Reference Standard Operating Life Test 1.Under Room Temperature 2.If=20mA 3.t=1000 hrs (-24hrs, +72hrs) This test is conducted for the purpose of detemining the resisance of a part in electrical and themal stressed. MIL-STD-750: 1026 MIL-STD-883: 1005 JIS C 7021: B-1 High Temperature Storage Test 1.Ta=105 ℃±5 ℃ 2.t=1000 hrs (-24hrs, +72hrs) The purpose of this is the resistance of the device which is laid under ondition of high temperature for hours. MIL-STD-883:1008 JIS C 7021: B-10 Low Temperature Storage Test 1.Ta=-40 ℃±5℃ 2.t=1000 hrs (-24hrs, +72hrs) The purpose of this is the resistance of the device which is laid under condition of low temperature for hours. High Temperature High Humidity Test 1.Ta=65 ℃±5℃ 2.RH=90 %~95 % 3.t=240hrs ±2hrs The purpose of this test is the resistance of the device under tropical for hous. 1.Ta=105 ℃±5℃&-40 ℃±5℃ (10min) (10min) 2.total 10 cycles The purpose of this is the resistance of the device to sudden extreme changes in high and low temperature. MIL-STD-202: 107D MIL-STD-750: 1051 MIL-STD-883: 1011 Solder Resistance Test 1.T.Sol=260 ℃±5℃ 2.Dwell time= 10 ±1sec. This test intended to determine the thermal characteristic resistance of the device to sudden exposures at extreme changes in temperature when soldering the lead wire. MIL-STD-202: 210A MIL-STD-750: 2031 JIS C 7021: A-1 Solderability Test 1.T.Sol=230 ℃±5℃ 2.Dwell time=5 ±1sec This test intended to see soldering well performed or not. MIL-STD-202: 208D MIL-STD-750: 2026 MIL-STD-883: 2003 JIS C 7021: A-2 Thermal Shock Test JIS C 7021: B-12 MIL-STD-202:103B JIS C 7021: B-11