No. STSE-CC3078A <Cat.No.031212> SPECIFICATIONS FOR NICHIA CHIP TYPE WHITE LED MODEL : NECW425BT NICHIA CORPORATION -0- Nichia STSE-CC3078A <Cat.No.031212> 1.SPECIFICATIONS (1) Absolute Maximum Ratings Item Forward Current Pulse Forward Current Reverse Voltage Power Dissipation Operating Temperature Storage Temperature Soldering Temperature Symbol IF IFP VR PD Topr Tstg Tsld Absolute Maximum Rating 15 50 5 60 -30 ~ + 85 -40 ~ +100 Reflow Soldering : 240°C Hand Soldering : 300°C (Ta=25°C) Unit mA mA V mW °C °C for 10sec. for 3sec. IFP Conditions : Pulse Width < = 10msec. and Duty < = 1/10 (2) Initial Electrical/Optical Characteristics Item Symbol Forward Voltage VF Reverse Current IR Rank Q Iv Luminous Intensity Rank P Iv Rank O Iv Condition IF=10[mA] VR= 5[V] IF=10[mA] IF=10[mA] IF=10[mA] Min. 300 210 150 Typ. 3.6 350 250 175 (Ta=25°C) Max. Unit 4.0 V 50 µA 420 mcd 300 mcd 210 mcd ! Luminous Intensity Measurement allowance is ± 10%. Color Ranks x y x y 0.280 0.248 Rank a0 0.264 0.283 0.267 0.305 0.296 0.276 Rank b2 0.287 0.330 0.295 0.339 0.296 0.276 x y 0.330 0.318 x y 0.287 0.295 (IF=10mA,Ta=25°C) Rank b1 0.283 0.330 0.330 0.305 0.360 0.339 0.330 0.318 Rank c0 0.330 0.361 0.360 0.385 0.356 0.351 ! Color Coordinates Measurement allowance is ± 0.01. ! One delivery will include up to two consecutive color ranks and three luminous intensity ranks of the products. The quantity-ratio of the ranks is decided by Nichia. 2.TYPICAL INITIAL OPTICAL/ELECTRICAL CHARACTERISTICS Please refer to figure’s page. 3.OUTLINE DIMENSIONS AND MATERIALS Please refer to figure’s page. Material as follows ; Package Package Upper Surface Color Encapsulating Resin Electrodes -1- : Heat-Resistant Polymer : Black : Epoxy Resin (with Diffused + YAG Phosphor) : Ag Plating Copper Alloy Nichia STSE-CC3078A <Cat.No.031212> 4.PACKAGING · The LEDs are packed in cardboard boxes after taping. Please refer to figure’s page. The label on the minimum packing unit shows ; Part Number, Lot Number, Ranking, Quantity · In order to protect the LEDs from mechanical shock, we pack them in cardboard boxes for transportation. · The LEDs may be damaged if the boxes are dropped or receive a strong impact against them, so precautions must be taken to prevent any damage. · The boxes are not water resistant and therefore must be kept away from water and moisture. · When the LEDs are transported, we recommend that you use the same packing method as Nichia. 5.LOT NUMBER The first six digits number shows lot number. The lot number is composed of the following characters; "#$$$$ - !% " - Year ( 3 for 2003, 4 for 2004 ) # - Month ( 1 for Jan., 9 for Sep., A for Oct., $$$$ - Nichia's Product Number ! - Ranking by Color Coordinates % - Ranking by Luminous Intensity -2- B for Nov. ) Nichia STSE-CC3078A <Cat.No.031212> 6.RELIABILITY (1) TEST ITEMS AND RESULTS Test Item Standard Test Method Test Conditions Note Number of Damaged 1 time 0/100 Resistance to Soldering Heat (Reflow Soldering) JEITA ED-4701 300 301 Tsld=240°C, 10sec. (Pre treatment 30°C,70%,168hrs.) Thermal Shock JEITA ED-4701 300 307 0°C ~ 100°C 15sec. 15sec. 100 cycles 0/100 Temperature Cycle JEITA ED-4701 100 105 -40°C ~ 25°C ~ 100°C ~ 25°C 30min. 5min. 30min. 5min. 100 cycles 0/100 Moisture Resistance Cyclic JEITA ED-4701 200 203 25°C ~ 65°C ~ -10°C 90%RH 24hrs./1cycle 10 cycles 0/100 High Temperature Storage JEITA ED-4701 200 201 Ta=100°C 1000 hrs. 0/100 Temperature Humidity Storage JEITA ED-4701 100 103 Ta=60°C, RH=90% 1000 hrs. 0/100 Low Temperature Storage JEITA ED-4701 200 202 Ta=-40°C 1000 hrs. 0/100 Steady State Operating Life Ta=25°C, IF=15mA 1000 hrs. 0/100 Steady State Operating Life of High Humidity Heat 60°C, RH=90%, IF=10mA 500 hrs. 0/100 Steady State Operating Life of Low Temperature Ta=-30°C, IF=10mA 1000 hrs. 0/100 (2) CRITERIA FOR JUDGING THE DAMAGE Criteria for Judgement Min. Max. Item Symbol Test Conditions Forward Voltage VF IF=10mA U.S.L.*)$ 1.1 Reverse Current IR VR=5V U.S.L.*)$ 2.0 Luminous Intensity IV IF=10mA L.S.L.**)$ 0.7 *) U.S.L. : Upper Standard Level **) L.S.L. : Lower Standard Level -3- Nichia STSE-CC3078A-1 <Cat.No.060915> 7.CAUTIONS The LEDs are devices which are materialized by combining Blue LEDs and special phosphors. Consequently, the color of the LEDs is changed a little by an operating current. Care should be taken after due consideration when using LEDs. (1) Moisture Proof Package · When moisture is absorbed into the SMT package it may vaporize and expand during soldering. There is a possibility that this can cause exfoliation of the contacts and damage to the optical characteristics of the LEDs. For this reason, the moisture proof package is used to keep moisture to a minimum in the package. · The moisture proof package is made of an aluminum moisture proof bag. A package of a moisture absorbent material (silica gel) is inserted into the aluminum moisture proof bag. The silica gel changes its color from blue to pink as it absorbs moisture. (2) Storage · Storage Conditions Before opening the package : The LEDs should be kept at 30°C or less and 90%RH or less. The LEDs should be used within a year. When storing the LEDs, moisture proof packaging with absorbent material (silica gel) is recommended. After opening the package : The LEDs should be kept at 30°C or less and 70%RH or less. The LEDs should be soldered within 168 hours (7days) after opening the package. If unused LEDs remain, they should be stored in moisture proof packages, such as sealed containers with packages of moisture absorbent material(silica gel). It is also recommended to return the LEDs to the original moisture proof bag and to reseal the moisture proof bag again. · If the moisture absorbent material (silica gel) has faded away or the LEDs have exceeded the storage time, baking treatment should be performed using the following conditions. Baking treatment : more than 24 hours at 65 ± 5°C · Nichia LED electrode sections are comprised of a silver plated copper alloy. The silver surface may be affected by environments which contain corrosive gases and so on. Please avoid conditions which may cause the LED to corrode, tarnish or discolor. This corrosion or discoloration may cause difficulty during soldering operations. It is recommended that the User use the LEDs as soon as possible. · Please avoid rapid transitions in ambient temperature, especially in high humidity environments where condensation can occur. (3) Heat Generation · Thermal design of the end product is of paramount importance. Please consider the heat generation of the LED when making the system design. The coefficient of temperature increase per input electric power is affected by the thermal resistance of the circuit board and density of LED placement on the board, as well as other components. It is necessary to avoid intense heat generation and operate within the maximum ratings given in this specification. · The operating current should be decided after considering the ambient maximum temperature of LEDs. -4- Nichia STSE-CC3078A-2 <Cat.No.061106> (4) Soldering Conditions · The LEDs can be soldered in place using the reflow soldering method. Nichia cannot make a guarantee on the LEDs after they have been assembled using the dip soldering method. · Recommended soldering conditions Hand Soldering Reflow Soldering Pre-heat 120 ~ 150°C Temperature 300°C Max. Pre-heat time 120 seconds Max. Soldering time 3 seconds Max. Peak temperature 240°C Max. Soldering time 10 seconds Max. Condition refer to Temperature- profile. (one time only) ½ Although the recommended soldering conditions are specified in the above table, reflow or hand soldering at the lowest possible temperature is desirable for the LEDs. ½ A rapid-rate process is not recommended for cooling the LEDs down from the peak temperature. 2.5 ~ 5°C / sec. Pre-heating 120 ~ 150°C 60sec.Max. 240°C Max. 10sec. Max. Above 200°C 1.8 1.0 4.6 120sec.Max. 2.8 2.5 ~ 5°C / sec. [Recommended soldering pad design] Use the following conditions shown in the figure. 1.0 0.8 1.0 [Temperature-profile (Surface of circuit board)] Use the following conditions shown in the figure. 1.8 (Unit : mm) · Repairing should not be done after the LEDs have been soldered. When repairing is unavoidable, a double-head soldering iron should be used. It should be confirmed beforehand whether the characteristics of the LEDs will or will not be damaged by repairing. · Reflow soldering should not be done more than one time. · When soldering, do not put stress on the LEDs during heating. · After soldering, do not warp the circuit board. (5) Cleaning · It is recommended that isopropyl alcohol be used as a solvent for cleaning the LEDs. When using other solvents, it should be confirmed beforehand whether the solvents will dissolve the package and the resin or not. Freon solvents should not be used to clean the LEDs because of worldwide regulations. · Do not clean the LEDs by the ultrasonic. When it is absolutely necessary, the influence of ultrasonic cleaning on the LEDs depends on factors such as ultrasonic power and the assembled condition. Before cleaning, a pre-test should be done to confirm whether any damage to the LEDs will occur. -5- Nichia STSE-CC3078A-1 <Cat.No.060915> (6) Static Electricity · Static electricity or surge voltage damages the LEDs. It is recommended that a wrist band or an anti-electrostatic glove be used when handling the LEDs. · All devices, equipments and machinery must be properly grounded. It is recommended that measures be taken against surge voltage to the equipment that mounts the LEDs. · When inspecting the final products in which LEDs were assembled, it is recommended to check whether the assembled LEDs are damaged by static electricity or not. It is easy to find static-damaged LEDs by a light-on test or a VF test at a lower current (below 1mA is recommended). · Damaged LEDs will show some unusual characteristics such as the leak current remarkably increases, the forward voltage becomes lower, or the LEDs do not light at the low current. Criteria : (VF > 2.0V at IF=0.5mA) (7) Others · NECW425B complies with RoHS Directive. · Care must be taken to ensure that the reverse voltage will not exceed the absolute maximum rating when using the LEDs with matrix drive. · The LED light output is strong enough to injure human eyes. Precautions must be taken to prevent looking directly at the LEDs with unaided eyes for more than a few seconds. · Flashing lights have been known to cause discomfort in people; you can prevent this by taking precautions during use. Also, people should be cautious when using equipment that has had LEDs incorporated into it. · The LEDs described in this brochure are intended to be used for ordinary electronic equipment (such as office equipment, communications equipment, measurement instruments and household appliances). Consult Nichia’s sales staff in advance for information on the applications in which exceptional quality and reliability are required, particularly when the failure or malfunction of the LEDs may directly jeopardize life or health (such as for airplanes, aerospace, submersible repeaters, nuclear reactor control systems, automobiles, traffic control equipment, life support systems and safety devices). · User shall not reverse engineer by disassembling or analysis of the LEDs without having prior written consent from Nichia. When defective LEDs are found, the User shall inform Nichia directly before disassembling or analysis. · The formal specifications must be exchanged and signed by both parties before large volume purchase begins. · The appearance and specifications of the product may be modified for improvement without notice. -6- Nichia STSE-CC3078A <Cat.No.031212> ICI Chromaticity Diagram 0.9 520 530 0.8 540 510 550 0.7 560 0.6 570 500 0.5 y 580 590 0.4 600 b1 0.3 490 a0 c0 610 620 630 b2 0.2 480 0.1 470 460 0 0 0.1 0.2 0.3 0.4 x ! Color Coordinates Measurement allowance is ± 0.01. -7- 0.5 0.6 0.7 0.8 3.5 50 Relative Luminosity (a.u.) Forward Current IFP (mA) 100 Ta=25°C 20 10 5 1 2.5 ! Ambient Temperature vs. Forward Voltage 1.5 1.0 0.5 0 10 20 30 40 50 60 Forward Current IFP (mA) 2.0 IFP=10mA 4.2 3.8 3.4 3.0 2.6 -40 -20 0 20 40 60 80 100 Ambient Temperature Ta (°C) Relative Luminosity (a.u.) -8- Forward Voltage VF (V) 2.0 ! Ambient Temperature vs. Relative Luminosity 5.0 4.6 2.5 0 3.0 3.5 4.0 4.5 5.0 Forward Voltage VF (V) Ta=25°C 3.0 IFP=10mA 1.0 0.5 0.2 -40 -20 0 20 40 60 80 100 Ambient Temperature Ta (°C) ! Duty Ratio vs. Allowable Forward Current Allowable Forward Current IFP (mA) ! Forward Current vs. Relative Luminosity 100 Ta=25°C 50 20 15 10 1 5 10 20 50 100 Duty Ratio (%) ! Ambient Temperature vs. Allowable Forward Current Allowable Forward Current IF (mA) ! Forward Voltage vs. Forward Current 25 20 15 10 5 4 0 0 20 40 60 80 100 Ambient Temperature Ta (°C) NICHIA CORPORATION NECW425B Title TYP.CHARACTERISTICS No. 031118318831 Nichia STSE-CC3078A <Cat.No.031212> Model 0.35 Ta=25°C 0.34 1mA 0.33 y 5mA 0.32 10mA 0.31 50mA 0.30 0.29 0.30 0.31 0.32 0.33 0.34 x ! Ambient Temperature vs. Chromaticity Coordinate ! Spectrum Relative Emission Intensity (a.u.) ! Forward Current vs. Chromaticity Coordinate Ta=25°C IF=10mA 1.0 0.8 0.6 0.4 0.2 0 350 450 550 650 Wavelength λ (nm) 0° 1.0 0.34 0.33 y -30°C 0°C 25°C 50°C 0.32 85°C 0.30 0.29 0.30 0.31 0.32 0.33 0.34 x Relative Luminosity (a.u.) -9- IFP=10mA 750 ! Directivity (NECW425B) 0.35 0.31 1.2 10° 20° 30° Ta=25°C IF=10mA 40° 50° 60° 0.5 70° 80° 0 90° 60° 30° Radiation Angle 0° 90° 1.0 0.5 NICHIA CORPORATION NECW425B Title TYP.CHARACTERISTICS No. 031118318841 Nichia STSE-CC3078A <Cat.No.031212> Model 3 ± 0.2 NC (2.6) Anode (R 0.8) (1.2) (2.6) 3 ± 0.2 A Cathode mark C 0.5 (0.8) (0.4) 1.8 ± 0.3 -10- 0.2 MAX. : Black 0.85 ± 0.3 K NC Cathode ITEM MATERIALS PACKAGE PACKAGE UPPER SURFACE COLOR Heat-Resistant Polymer Black Epoxy Resin (with Diffused + YAG Phosphor) Ag Plating Copper Alloy ENCAPSULATING RESIN ELECTRODES 1 ± 0.2 Model NICHIA CORPORATION Title No. NECW425B OUTLINE DIMENSIONS 031119318901 Unit mm 15/1 Scale Allow Nichia STSE-CC3078A <Cat.No.031212> 0.75 ± 0.2 Cathode mark 4±0.1 Reel End of tape φ 2±0.1 1+0.25 -0 11.4±1 9±0.3 φ 60+1 -0 φ2 1 ±0.8 0.2 ± φ 13 Label WHITE LED TYPE NECW425BT LOT XXXXXX-!! QTY pcs 3.15±0.1 No LEDs φ 180+0 -3 Reel part 3.15±0.1 (2.75) 3.5±0.05 2±0.05 0.25±0.05 8+0.3 - 0.1 4±0.1 φ 1.5+0.1 -0 1.75±0.1 Taping part LEDs mounting part No LEDs -11Top cover tape Pull direction Embossed carrier tape Reel Lead Min.40mm (No LEDs) Reel Lead Min.160mm (No LEDs is more than 40) Reel Lead Min.400mm Taping is based on the JIS C 0806 : Packaging of Electronic Components on Continuous Tapes. Model NICHIA CORPORATION Title No. NECW425BT TAPING DIMENSIONS 031119318911 Unit mm Scale Allow Nichia STSE-CC3078A <Cat.No.031212> 2,000pcs/Reel Nichia STSE-CC3078A-1 <Cat.No.060915> The reel and moisture absorbent material are put in the moisture proof foil bag and then heat sealed. Reel Label Seal NICHIA WHITE LED TYPE LOT QTY NECW425BT xxxxxx-U PCS NICHIA CORPORATION 491 OKA, KAMINAKA, ANAN, TOKUSHIMA, JAPAN Moisture proof foil bag Moisture absorbent material The box is partitioned with the cardboard. Label NICHIA Nichia WHITE LED LED TYPE RANK QTY NECW425BT U PCS NICHIA CORPORATION 491 OKA, KAMINAKA, ANAN, TOKUSHIMA, JAPAN Packing unit Moisture proof foil bag Cardboard box Cardboard box S Cardboard box M Cardboard box L Reel/bag 1reel Quantity/bag (pcs) 2,000 MAX. Dimensions (mm) 291¯237¯120¯8t 259¯247¯243¯5t 444¯262¯259¯8t Reel/box 7reel MAX. 15reel MAX. 30reel MAX. Model NICHIA CORPORATION -12- Quantity/box (pcs) 14,000 MAX. 30,000 MAX. 60,000 MAX. NECW425BT Title PACKING No. 060630653851