View NECW425BT_4224373.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

No. STSE-CC3078A
SPECIFICATIONS FOR NICHIA CHIP TYPE WHITE LED
MODEL : NECW425BT
NICHIA CORPORATION
-0-
Nichia STSE-CC3078A 1.SPECIFICATIONS (1) Absolute Maximum Ratings Item Forward Current Pulse Forward Current Reverse Voltage Power Dissipation Operating Temperature Storage Temperature Soldering Temperature (Ta=25C) Unit mA mA V mW C C for 10sec. for 3sec.
Symbol IF IFP VR PD Topr Tstg Tsld
Absolute Maximum Rating 15 50 5 60 -30 ~ + 85 -40 ~ +100 Reflow Soldering : 240C Hand Soldering : 300C
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=25C) Max. Unit 4.0 V 50 A 420 mcd 300 mcd 210 mcd
! Luminous Intensity Measurement allowance is 10%.
Color Ranks x y x y 0.280 0.248 0.296 0.276 Rank a0 0.264 0.283 0.267 0.305 Rank b2 0.287 0.330 0.295 0.339 0.296 0.276 0.330 0.318 x y x y 0.287 0.295 0.330 0.318
(IF=10mA,Ta=25C) Rank b1 0.283 0.330 0.330 0.305 0.360 0.339 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
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
B for Nov. )
-2-
Nichia STSE-CC3078A
6.RELIABILITY
(1) TEST ITEMS AND RESULTS
Test Item Resistance to Soldering Heat (Reflow Soldering) Thermal Shock Temperature Cycle Moisture Resistance Cyclic High Temperature Storage Temperature Humidity Storage Low Temperature Storage Steady State Operating Life Steady State Operating Life of High Humidity Heat Steady State Operating Life of Low Temperature Standard Test Method JEITA ED-4701 300 301 JEITA ED-4701 300 307 JEITA ED-4701 100 105 JEITA ED-4701 200 203 JEITA ED-4701 200 201 JEITA ED-4701 100 103 JEITA ED-4701 200 202 Test Conditions Tsld=240C, 10sec. (Pre treatment 30C,70%,168hrs.) 0C ~ 100C 15sec. 15sec. -40C ~ 25C ~ 100C ~ 25C 30min. 5min. 30min. 5min. 25C ~ 65C ~ -10C 90%RH 24hrs./1cycle Ta=100C Ta=60C, RH=90% Ta=-40C Ta=25C, IF=15mA 60C, RH=90%, IF=10mA Ta=-30C, IF=10mA Note 1 time Number of Damaged 0/100
100 cycles 100 cycles 10 cycles 1000 hrs. 1000 hrs. 1000 hrs. 1000 hrs. 500 hrs. 1000 hrs.
0/100 0/100 0/100 0/100 0/100 0/100 0/100 0/100 0/100
(2) CRITERIA FOR JUDGING THE DAMAGE 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 Criteria for Judgement Min. Max.
-3-
Nichia STSE-CC3078A-1
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 30C 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 30C 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 5C * 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 (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 Pre-heat time Peak temperature Soldering time Condition 120 ~ 150C 120 seconds Max. 240C Max. 10 seconds Max. refer to Temperature- profile. Temperature Soldering time 300C Max. 3 seconds Max. (one time only)
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. A rapid-rate process is not recommended for cooling the LEDs down from the peak temperature. [Temperature-profile (Surface of circuit board)] Use the following conditions shown in the figure.
2.5 ~ 5C / sec. Pre-heating 120 ~ 150C 60sec.Max.
Above 200C
[Recommended soldering pad design] Use the following conditions shown in the figure.
1.0 0.8 1.0 1.8 1.0 4.6 1.8
2.5 ~ 5C / sec.
2.8
240C Max. 10sec. Max.
120sec.Max.
(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 (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
ICI Chromaticity Diagram
0.9 520 530 0.8 510 0.7 550 540
560 0.6 570 500 0.5 580 590 0.4 600
y
b1
0.3 490
c0 b2
610 620 630
a0
0.2
0.1
480 470 460 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
0
x
! Color Coordinates Measurement allowance is 0.01.
-7-
! Forward Voltage vs. Forward Current
100 Forward Current IFP (mA) 50 20 10 5 Ta=25C
! Forward Current vs. Relative Luminosity
3.5 Relative Luminosity (a.u.) 3.0 2.5 2.0 1.5 1.0 0.5 0 0 10 20 30 40 50 60 Forward Current IFP (mA) Ta=25C
! Duty Ratio vs. Allowable Forward Current
Allowable Forward Current IFP (mA) 100 Ta=25C 50
20 15 10 1 5 10 20 50 100 Duty Ratio (%)
1 2.5
3.0 3.5 4.0 4.5 5.0 Forward Voltage VF (V)
! Ambient Temperature vs. Forward Voltage
5.0 Forward Voltage VF (V) 4.6 4.2 3.8 3.4 3.0 2.6 -40 -20 0 20 40 60 80 100 Ambient Temperature Ta (C) IFP=10mA
! Ambient Temperature vs. Relative Luminosity
2.0 Relative Luminosity (a.u.) IFP=10mA 1.0
! Ambient Temperature vs. Allowable Forward Current
Allowable Forward Current IF (mA) 25 20 15 10 5 4 0 0 20 40 60 80 100 Ambient Temperature Ta (C)
-8-
0.5
0.2 -40 -20 0 20 40 60 80 100 Ambient Temperature Ta (C)
Nichia STSE-CC3078A
Model
NECW425B
NICHIA CORPORATION
Title No.
TYP.CHARACTERISTICS
031118318831
! Forward Current vs. Chromaticity Coordinate
0.35 Ta=25C 0.34 0.33
1mA 5mA
! Spectrum
Relative Emission Intensity (a.u.)
1.2 1.0 0.8 0.6 0.4 0.2 0 350 450 550 650 Wavelength (nm) 750 Ta=25C IF=10mA
y
0.32 0.31
10mA
50mA
0.30 0.29 0.30 0.31 0.32 0.33 0.34
x ! Ambient Temperature vs. Chromaticity Coordinate
0.35 IFP=10mA 0.34 0.33 0.32 0.31
85C -30C 0C 25C 50C
! Directivity (NECW425B)
1.0
Relative Luminosity (a.u.)
0 Ta=25C IF=10mA
10 20 30 40 50
y
-9-
0.5
60 70 80
0.30 0.29 0.30 0.31 0.32 0.33 0.34
0 90
x
60 30 Radiation Angle
0
0.5
90 1.0
Nichia STSE-CC3078A
Model
NECW425B
NICHIA CORPORATION
Title No.
TYP.CHARACTERISTICS
031118318841
3 0.2 (2.6) (R 0.8) NC Anode
A
3 0.2
(2.6)
K
: Black 0.2 MAX.
-10-
Cathode mark C 0.5 (0.4)
0.85 0.3
(1.2)
Cathode
NC
MATERIALS Heat-Resistant Polymer Black
ITEM
1.8 0.3
(0.8)
PACKAGE PACKAGE UPPER SURFACE COLOR ENCAPSULATING RESIN ELECTRODES
Epoxy Resin (with Diffused + YAG Phosphor) Ag Plating Copper Alloy
0.75 0.2
1 0.2
Nichia STSE-CC3078A
Model
NECW425B
Unit mm 15/1 Scale Allow
NICHIA CORPORATION
Title No.
OUTLINE DIMENSIONS
031119318901
1.750.1
Taping part
1.5+0.1 -0 40.1 20.05
0.250.05
Reel part
180+0 -3
11.41 90.3
3.50.05
8+0.3 - 0.1
3.150.1
(2.75)
13
0.2
Cathode mark
40.1
3.150.1
20.1
Label
WHITE LED
TYPE NECW425BT LOT XXXXXX-!! QTY pcs
1+0.25 -0
Reel End of tape
No LEDs
LEDs mounting part
No LEDs
60+1 -0
2 1 0.8
-11Pull direction Embossed carrier tape Reel Lead Min.40mm (No LEDs) Reel Lead Min.160mm (No LEDs is more than 40) Reel Lead Min.400mm Top cover tape
Nichia STSE-CC3078A
2,000pcs/Reel
Taping is based on the JIS C 0806 : Packaging of Electronic Components on Continuous Tapes.
Model
NECW425BT
Unit mm Scale Allow
NICHIA CORPORATION
Title No.
TAPING DIMENSIONS
031119318911
Nichia STSE-CC3078A-1
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 xxxxxxPCS
NICHIA CORPORATION
491 OKA, KAMINAKA, ANAN, TOKUSHIMA, JAPAN
Moisture absorbent material
Moisture proof foil bag
The box is partitioned with the cardboard.
Label
NICHIA
Nichia
LED
WHITE LED
TYPE RANK QTY NECW425BT 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. Reel/box 7reel MAX. 15reel MAX. 30reel MAX. Quantity/box (pcs) 14,000 MAX. 30,000 MAX. 60,000 MAX.
Dimensions (mm) 291 237 120 8t 259 247 243 5t 444 262 259 8t
Model
NECW425BT
NICHIA CORPORATION
Title No.
PACKING
060630653851
-12-

▲Up To Search▲

Price & Availability of NECW425BT

	To Download NECW425BT Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .