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Data Sheets of AVA technology Chip Type White LED
Model : T2520
AVA technology CO..
2640 S. Myrtle Ave. Suite 6 Monrovia,CA 91016
P: 626-574-7726 F: 626-574-7732
http://www.led4life.com
AVA technology
1. FEATURES High intensity with small package, ideal for backlighting * Wide viewing angle ( 120 ) * Suitable for all SMT assembly methods * Suitable for all soldering methods * Delivery on 8mm tape reels
T2520 Thin Top View with Reflector
2. APPLICATIONS * * * * * * Automotive: indoor/outdoor lighting. Signal and symbol lightings Backlighting (TFT-LCD displays, PDA, Digital Camera, Navigator.....) All applications in notice high intensities are required Strobe light Channel Letter
Type T2520
Color of Emission White
Color of the Light Emitting Area Colored
Luminous intensity Iv (mcd) IF =20mA 600 ~1650
Materials Construction ITEM Package Encapsulating Resin Electrodes MATERIALS Heat-Resistant Polymer Heat-Resistant Resin Ag Plating Copper Alloy
Doc. No. : RD-EDS-0004
Version 1.2
Date : 2005.07.08
Page: 1 of 13
AVA technology
3. OUTLINE DIMENSION:
T2520
B (P)
B (N)
Note: 1. Unit: mm 2. Tolerance: Dimension 0.15 / Angle 0.5
Doc. No. : RD-EDS-0004
Version 1.2
Date : 2005.07.08
Page: 2 of 13
AVA technology
4. ABSOLUTE MAXIMUM RATINGS ( TA=25 )
T2520
Parameter Reverse Voltage Forward Current Operating Temperature Storage Temperature Soldering Temperature Power Dissipation Peak Forward Current (Duty 1/10 @ 1KHz) Junction temperature Thermal Resistance (Junction to ambient)
Symbol VR IF Topr Tstg Tsol PD IF(peak) Tj Rth)JA
Rating 5 30 -40 ~ +85 -40 ~ +100 260 (for 5 sec) 114 70 110 500
Unit V mA mW mA /W
5. ELECTRONIC OPTICAL CHARACTERISTICS
Parameter
Symbol
Condition
PTA
Unit
Chromaticity coordinate x acc. To CIE 1931 Chromaticity coordinate y acc. To CIE 1931 Viewing Angle Max Forward Voltage Typ Max Reverse Current Typ
x
IF=20mA
0.31
---
y 21/2 VF
IF=20mA IF=20mA IF=20mA
0.31 120 3.8
--Deg V
3.4 IR VR=5V 50 A
Doc. No. : RD-EDS-0004
Version 1.2
Date : 2005.07.08
Page: 3 of 13
AVA technology
6. LUMINOUS INTENSITY GROUPS: Luminous intensity group U T2 T1 S2
T2520
Measurement condition IF = 20 mA IF = 20 mA IF = 20 mA IF = 20 mA
Luminous intensity Iv(mcd) 1000 ~ 1650 800 ~ 1000 700 ~ 800 600 ~ 700
* Luminous intensity group includes 4 groups S2 to U * Luminous intensity is tested at a current pulse duration of 25ms and a tolerance of 10% 7. CHROMATICITY COORDINATES RANKS : 0.280 0.264 0.287 0.296 0.287 0.283 0.304 0.307 0.307 0.304 0.330 0.330 0.248 0.267 0.295 0.276 0.295 0.307 0.330 0.315 0.315 0.330 0.360 0.339 0.296 0.287 0.307 0.311 0.311 0.307 0.330 0.330 0.330 0.330 0.350 0.350 0.276 0.295 0.315 0.294 0.294 0.315 0.339 0.318 0.360 0.318 0.318 0.360 0.291 0.279 0.302 0.308 0.308 0.302 0.319 0.321 0.257 0.276 0.302 0.279 0.279 0.302 0.318 0.294
a3
b5
b7
b3
b6
b8
b4
d0
* Color rank is tested at a current pulse duration of 25ms and a tolerance of the chromaticity coordinate of 0.01
8. FORWORD VOLTAGE : Bin VT1 VT2 VF(Volt) 3.00-3.40 3.40-3.60 Forward Current 20mA
* Tolerance of Forward Voltage is 0.05V
Doc. No. : RD-EDS-0004
Version 1.2
Date : 2005.07.08
Page: 4 of 13
AVA technology
9. TYPICAL ELECTRO-OPTICAL CHATACTERISTIC CURVES: * Chromaticity Coordinates (CIE 1931 system)
T2520
Doc. No. : RD-EDS-0004
Version 1.2
Date : 2005.07.08
Page: 5 of 13
AVA technology
* Forward Voltage vs. Forward Current @25
120 100 80
IF (mA)
Iv (%)
T2520
Forward Current vs. Relative Luminosity@25
2.5 2.0 1.5 1.0 0.5
60 40 20 0 1 1.5 2 2.5 3 3.5 4 4.5 5
0.0 0 20 40 60 IF (mA) 80 1 0 0 12 0
VF (Volt)
* Ambient Temperature vs. Forward Voltage@20mA
4.50 4.25 4.00
VF (Volt)
3.75 3.50 3.25 3.00 2.75 2.50 -60 -40 -20 0 20 40 60 80 100 120
Ta ()
Doc. No. : RD-EDS-0004
Version 1.2
Date : 2005.07.08
Page: 6 of 13
AVA technology
* Forward Current vs. Chromaticity diagram @ 25
0.34
5mA
100 80
T2520
* Spectrum @ 20mA, 25
0.33
10mA
CIE y
0.32 0.31 0.3 0.29 0.29 0.3 0.31
60
20mA 30mA 50mA 80mA 100mA
0 380 480 580 680 780 20 40
0.32
0.33
0.34
CIE x
* Ambient Temperature vs. Chromaticity Diagram @ 20mA
0.340
-40
* Radiation Characteristic (@ 25, 20mA)
0.330
CIE y
0
0.320
20
25
0.310
100
60 80
0.300 0.300
0.310 CIE x
0.320
0.330
Doc. No. : RD-EDS-0004
Version 1.2
Date : 2005.07.08
Page: 7 of 13
AVA technology
10. REEL PACKAGE: Pull Direction
T2520
No LEDs (more than 40pcs)
LEDs ( 2,000 pcs / reel )
No LEDs (more than 40 pcs)
Note: 1. Unit: mm 2. 2,000 pcs / reel
Doc. No. : RD-EDS-0004
Version 1.2
Date : 2005.07.08
Page: 8 of 13
AVA technology
11. RELIABILITY PLAN: * The reliability of products shall be satisfied with items listed below. Confidence Level : 90 % , LTPD : 10 %
T2520
No 1
Test Item Solderability Room Temperature operating Room Temperature operating High Temperature operating Low Temperature Storage High Temperature Storage Temperature Cycle High Humidity Heat
Description & Condition Tsld =2455, 10sec, Ta = 25 IF =20mA Ta = 25 IF = 30mA Ta = 85 IF =15mA Ta = -40 Ta = 100 1 time
Sample Ac/Re size 22 0/1
Failure Criteria
2
1000 hrs
22
0/1 IV < L* 0.6 (IF: 20mA)
3
500 hrs
22
0/1 VF > U * 1.1 (IF: 20mA)
4 5 6
500 hrs 1000 hrs 1000 hrs
22 22 22
0/1 0/1 0/1 IR > U * 2.0 (VR:5V) L: Lower Spec. Level U: Upper Spec. Level
7
-40 ~ 25 ~ 100 ~ 25 100 30min 5min 30min cycles 5 min Ta = 60 RH=90% IF = 15mA 500 hrs
22
0/1
8
22
0/1
Doc. No. : RD-EDS-0004
Version 1.2
Date : 2005.07.08
Page: 9 of 13
AVA technology
12. SOLDERING CONDITIONS:
T2520
Re-flow Profile
Temp. () 245 Max. 240 2.5~ 5 /sec Pre-heating 2.5~ 5 /sec
150
120
120 sec Max.
10sec
Recommended Soldering Pad
Note: 1. Unit: mm Doc. No. : RD-EDS-0004 Version 1.2 Date : 2005.07.08 Page: 10 of 13
AVA technology
13. CAUTIONS:
T2520
(1)Storage Before opening the package : The LEDs should be kept at 30 or less and 30%RH~85%RH. The LEDs should be used within a year. When storing the LEDs, moisture proof packaging with desiccant (Silica gel)is recommended. After opening the package : The LEDs should be kept at 30 or less and 30%RH~70%RH.The LEDs should be soldered within 168hours (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 desiccant (Silica ge1), or reseal the moisture proof bag again. If the moisture desiccant (Silica ge1) has faded away or the LEDs have exceeded the storage time, baking treatment should be performed using the fo1lowing conditions. Baking treatment: more than 24 hours at 65. Please avoid conditions which may cause the LED to corrode, tarnish or disco1or. This corrosion or discoloration might lower solderability or might effect on optical characteristics. Please avoid rapid transitions in ambient temperature, especially in high humidity environments where condensation can occur. 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. A package of a moisture desiccant (silica gel)is inserted into the moisture proof bag. The silica gel changes its color from blue to pink as it absorbs moisture. (2)Static Electricity Static electricity or surge voltage damages the LEDs. It is recommended that a wrist band or an anti-electrostatic glove and shoe be used when handling the LEDs. All devices, equipment 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 End static-damaged LEDs by a light-on test or a VF test at a lower current (below l mA). 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.) (3)Heat Generation Please consider the heat generation of the LED when making the system design that it's very importance. 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, and 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.
Doc. No. : RD-EDS-0004
Version 1.2
Date : 2005.07.08
Page: 11 of 13
AVA technology
T2520
(4)Others 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 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.
Doc. No. : RD-EDS-0004
Version 1.2
Date : 2005.07.08
Page: 12 of 13
AVA technology
T2520
AVA TECHNOLOGY CO. MAKES NO WARRANTY, REPRESENTATION OF GUARANTEE, EXPRESS OR IMPLIED, REGARDING THE SUITABILITY OF ITS PRODUCTS FOR ANY PARTICULAR PURPOSE, NOR THAT THE USE OR APPLICATION AND SPECIFICALLY DISCLAIMS ANY AND ALL LIABILITY ARISING OUT OF ANY SUCH USE OR APPLICATION, INCLUDING BUT NOT LIMITED TO, CONSEQUENTIAL OR INCIDENTAL DAMAGES.
AVA Technology CO. are not designed, intended or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the AVA Technology Co. Product could create a situation where personal injury or death may occur.
AVA Technology CO. reserves the right to make changes to or discontinue any product or service desecribed herein without notice.
AVA technology Co.. World Wide Web http://www.led4life.com
Doc. No. : RD-EDS-0004
Version 1.2
Date : 2005.07.08
Page: 13 of 13

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