SPEC NO: DSAJ0364 REV NO: V.7 DATE: APR/12/2011 PAGE: 1 OF 7
APPROVED: WYNEC CHECKED: Allen Liu DRAWN: J.Yu ERP: 1212000007
2.5X2.0mm SURFACE MOUNT LED LAMP
Part Number: AT2520SY9ZS-350MA
Super Bright Yellow
Package Dimensions
ATTENTION
OBSERVE PRECAUTIONS
FOR HANDLING
ELECTROSTATIC
DISCHARGE
SENSITIVE
DEVICES
Notes:
1. All dimensions are in millimeters (inches).
2. Tolerance is ±0.25(0.01") unless otherwise noted.
3. The specifications, characteristics and technical data described in the datasheet are subject to change without prior notice.
4. The device has a single mounting surface. The device must be mounted according to the specifications.
Typical Applications
PDAs
Room lighting
Architectural lighting
Decorative/pathway lighting
Front panel backlight
Exterior automotive lighting:
(brake lights, turn lights, backlighting)
Application Note
Static electricity and surge damage the LEDS.
It is recommended to use a wrist band or anti-electrostatic
glove when handling the LEDs.
All devices, equipment and machinery must be electrically
grounded.
Features
z Dimension: 2.5mmx 2.0mm x 0.8mm.
zLow thermal resistance.
zCeramic package with silicone resin.
z Small package with high efficiency.
z Surface mount technology.
z ESD protection.
z Package : 2000pcs / reel.
z Moisture sensitivity level : level 2a.
zSoldering methods: IR reflow soldering.
zRoHS compliant.
SPEC NO: DSAJ0364 REV NO: V.7 DATE: APR/12/2011 PAGE: 2 OF 7
APPROVED: WYNEC CHECKED: Allen Liu DRAWN: J.Yu ERP: 1212000007
Handling Precautions
Compare to epoxy encapsulant that is hard and brittle, silicone is softer and flexible. Although its characteristic
significantly reduces thermal stress, it is more susceptible to damage by external mechanical force.
As a result, special handling precautions need to be observed during assembly using silicone encapsulated
LED products. Failure to comply might lead to damage and premature failure of the LED.
1. Handle the component along the side surfaces by using forceps or appropriate tools.
2. Do not directly touch or handle the silicone lens surface. It may damage the internal circuitry.
3. Do not stack together assembled PCBs containing exposed LEDs. Impact may scratch the silicone lens or
damage the internal circuitry.
4.1. The outer diameter of the SMD pickup nozzle should not exceed the size of the LED to prevent air leaks. The inner diame-
ter of the nozzle should be as large as possible.
4.2. A pliable material is suggested for the nozzle tip to avoid scratching or damaging the LED surface during pickup.
4.3. The dimensions of the component must be accurately programmed in the pick-and-place machine to insure precise pickup
and avoid damage during production.
5. As silicone encapsulation is permeable to gases, some corrosive substances such as H2S might corrode silver plating of
leadframe. Special care should be taken if an LED with silicone encapsulation is to be used near such substances.
SPEC NO: DSAJ0364 REV NO: V.7 DATE: APR/12/2011 PAGE: 3 OF 7
APPROVED: WYNEC CHECKED: Allen Liu DRAWN: J.Yu ERP: 1212000007
Selection Guide
Absolute Maximum Ratings at TA=25°C
Notes:
1. Results from mounting on metal core PCB,mounted on pc board-metal core PCB is recommend.for lowest thermal resistance.
2. 1/10 Duty Cycle, 0.1ms Pulse Width.
Notes:
1. θ1/2 is the angle from optical centerline where the luminous intensity is 1/2 of the optical peak value.
2. Luminous intensity/ luminous Flux: +/-15%.
Electrical / Optical Characteristics at TA = 25°C
Notes:
1.Wavelength : + / -1nm.
2. Forward Voltage : + / - 0.1V.
Part No. Dice
luminous Intensity [2]
Iv(mcd)@ 350mA
Φv (lm) [2]
@ 350mA
V
iewing
Angle [1]
Min. Typ. Typ. 2θ1/2
AT2520SY9ZS-350MA Super Bright Yellow ( AlGaInP) 6700 8500 18 130 °
Parameter Symbol Value Unit
DC Forward Current [1] IF 350 mA
Peak Forward Current [2] IFM 500 mA
Power dissipation PD 0.98 W
Operating Temperature Top -40 To +10 0 °C
Storage Temperature Ts tg -40 To + 1 2 0 °C
Junction temperature[1] TJ 120 °C
Thermal resistance [1] (Junction/ambient) Rth j-a 105 °C/W
Thermal resistance [1] (Junction/solder point) Rth j-s 31 °C/W
8000 V Electrostatic Discharge Threshold (HBM)
Reverse Voltage VR 5 V
Parameter Symbol Value Unit
Forward Voltage IF = 350mA [Min.]
VF [2]
1.8
V
Forward Voltage IF = 350mA [Typ.] 2.3
Forward Voltage IF = 350mA [Max.] 2.8
Wavelength at peak emission IF = 350mA [Typ.] λpeak 598 nm
Dominant Wavelength IF = 350mA [Typ.] λ dom [1] 591 nm
Spectral bandwidth at 50% ΦREL MAX IF = 350mA [Typ.] Δλ 23 nm
Temperature coefficient of λpeak
IF = 350mA, - 10 °C ≤ T ≤ 100 °C [Typ.] TC λpeak 0.12 nm/°C
Temperature coefficient of λdom
IF = 350mA, - 10 °C ≤ T ≤ 100 °C [Typ.] TC λdom 0.07 nm/°C
Temperature coefficient of VF
IF = 350mA, - 10 °C ≤ T≤ 100 °C [Typ.] TCV -3.0 mV/°C
Allowable Reverse Current [Max.] IR 85 mA
SPEC NO: DSAJ0364 REV NO: V.7 DATE: APR/12/2011 PAGE: 4 OF 7
APPROVED: WYNEC CHECKED: Allen Liu DRAWN: J.Yu ERP: 1212000007
AT2520SY9ZS-350MA
SPEC NO: DSAJ0364 REV NO: V.7 DATE: APR/12/2011 PAGE: 5 OF 7
APPROVED: WYNEC CHECKED: Allen Liu DRAWN: J.Yu ERP: 1212000007
SPEC NO: DSAJ0364 REV NO: V.7 DATE: APR/12/2011 PAGE: 6 OF 7
APPROVED: WYNEC CHECKED: Allen Liu DRAWN: J.Yu ERP: 1212000007
AT2520SY9ZS-350MA
Reflow soldering is recommended and the soldering profile is shown below.
Other soldering methods are not recommended as they might cause damage to the product.
Reel Dimension
Tape Specifications
(Units : mm)
Recommended Soldering Pattern
(Units : mm; Tolerance: ± 0.1)
SPEC NO: DSAJ0364 REV NO: V.7 DATE: APR/12/2011 PAGE: 7 OF 7
APPROVED: WYNEC CHECKED: Allen Liu DRAWN: J.Yu ERP: 1212000007
PACKING & LABEL SPECIFICATIONS AT2520SY9ZS-350MA
