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YELLOW LAMP LED
LY350
Technical Datasheet
Lamp LEDs are effective in hot thermal and humid condition. This high brightness and weather-resistant packaging design makes these Lamp LEDs ideal for outdoor applications such as traffic signals, variable message signs and backlighting for transparent sign panels Features
* High luminous emission * Non-standoff leads * 3mm type package * Transparent epoxy lens * Viewing angle : 45 * Dominant Wavelength : 590nm
Applications
* Electronic signs and signals * Specialty lighting * Small area illumination * Backlighting * Outdoor displays
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Outline Dimensions
LY350
Unit : mm
1.0 0.5 +0.2
-0.1
DETAIL ANODE 0.5 0.05
3.8 0.2 0.5 MAX
2.5 0.05
1.0 MIN 28.0 MIN
2.35 0.1 5.3 0.1
3.1 0.2
Notes : Protruded epoxy is 0.5mm maximum.
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Electro-Optical Characteristics ( Ta = 25C, IF=20mA )
Value Item Luminous Intensity [1] Dominant Wavelength[3] Forward Voltage [4] View Angle Reverse Current (at VR = 5V) Symbol Min. IV [2] 1250 584 Typ. 2500 590 2.2 45 5 Max. 596 2.6
LY350
Unit mcd nm V deg.
d
VF 2 1/2 IR
A
Absolute Maximum Ratings ( Ta = 25C )
Item DC Forward Current Forward Peak Pulse Current Reverse Voltage Power Dissipation Operating Temperature Storage Temperature Solder Temperature Symbol IF IFP [5] VR PD Topr Tstg Ts Value 30 100 5 78 -40 ~ 100 -50 ~ 105 260C for 10seconds [6] Unit mA mA V mW C C C
Notes : [1] SSC maintains a tolerance of 10% on intensity and power measurements. [2] IV is the luminous intensity output as measured with a cylinder. [3] Dominant wavelength is derived from the CIE 1931 Chromaticity diagram. A tolerance of 0.5nm for dominant wavelength [4] A tolerance of 0.05V on forward voltage measurements [5] t 0.1ms, D = 1/10 [6] No lower than 3mm from the base of the epoxy bulb.
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Reliability Tests
Item
Life Test High Temperature Operating Low Temperature Operating Thermal Shock Resistance to soldering Heat ESD (Human Body Model) High Temperature Storage Low Temperature Storage Temperature Humidity Storage Temperature Humidity Operating
LY350
Condition
Ta = RT, IF = 30mA Ta = 100C, IF = 10mA Ta = -40C, IF = 20mA Ta = -50C (30min) ~ 105 (30min) (Transfer time : 10sec, 1Cycle = 1hr) Ts = 255 5C, t = 10sec ; 100pF
Note
1000hrs 1000hrs 1000hrs 100 cycles 1 time 1 time 1000hrs 1000hrs 1000hrs 100hrs
Failures
0/22 0/22 0/22 0/40 0/22 0/22 0/22 0/22 0/22 0/22
1kV, 1.5k
Ta = 105C Ta = -50C Ta = 85C, RH = 85% Ta = 85C, RH = 85%, IF = 15mA
< Judging Criteria For Reliability Tests >
VF IR
V
USL[1] X 1.2 USL X 2.0 LSL [2] X 0.7
Notes : [1] USL : Upper Standard Level [2] LSL : Lower Standard Level.
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Characteristic Diagrams
Ta= 25C
LY350
Ta= 25C
2.5
50
Relative Luminous Intensity
Forward Current(mA)
40
2.0
30
1.5
20
1.0
10
0.5
0 1.0
0.0
1.5
2.0
2.5
3.0
3.5
4.0
0
10
20
30
40
50
Forward Voltage [V]
Forward Current [mA]
Forward Voltage vs. Forward Current
Forward Current vs. Relative Intensity
Ta= 25C, IF= 20mA
40
1.0
Relative Luminous Intensity
0.8
Forward Current IF [mA]
30
0.6
20
0.4
10
0.2
0 -40 -20 0 20 40 60 80
o
100
120
0.0 -90
-60
-30
0
30
60
90
Ambient Temperature Ta[ C]
Off Axis Angle [deg.]
Ambient Temperature vs. Maximum Forward Current
Directivity
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Bin Code Description
Bin Code Luminous Intensity N Dominant Wavelength 2 Forward Voltage 4
LY350
Luminous Intensity (mcd) @ IF = 20mA Bin Code M N O P Min. 1250 1750 2500 3500 Max. 1750 2500 3500 5000
Dominant Wavelength (nm) @ IF = 20mA Bin Code 1 2 3 Min. Max.
Forward Voltage (V) @ IF = 20mA Bin Code 2 3 4 5 6 7 8 Min. 1.6 1.8 2.0 2.2 2.4 2.6 2.8 Max. 1.8 2.0 2.2 2.4 2.6 2.8 3.0
Not yet available ranks
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Packing
LY350
Unit : mm
LXXXX
RANK : XXXX QTY : 1000pcs
* Antistatic poly bag (500pcs max/bag)
LOT : 20XX.XX.XX
SEOUL SEMICONDUCTOR CO., LTD
70
95
* Inner box (2bags max/box)
170
430
* Cardboard box (50000pcs max/box) (50boxes max/box)
0 42
420
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Soldering Profile
1) Wave Soldering Conditions / Profile * Preliminary heating to be at 85C(120 C max) for 20 seconds(60 seconds max). * Soldering heat to be at 255 C (260C max) for 10 seconds * Soak time above 200 C is 5 seconds
300
LY350
250
PEAK 10s
Temperature [ C]
200
255 C (260 C max)
O
150
PREHEAT
100
20s (60s Max) 85 C(120 C max)
50
0 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36
T im e [s ]
2) Hand Soldering conditions * Not more than 3 seconds at max. 350C, under Soldering iron.
3) Caution * The LEDs must not be repositioned after soldering. * Do not apply any stress to the lead particularly when heat.
Note : In case the soldered products are reused in soldering process, we don't guarantee the products.
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Precaution for Use
1) Storage
* Before opening the package a. Avoid the absorption of moisture, we recommended to store the LEDs in a dry
LY350
box(or desiccator) with a desiccant . Otherwise, store them in the following environment: Temperature : 5 soon as possible. * After opening the package a. Soldering should be done right after opening the package(within 24Hrs). b. Keeping of a fraction - Sealing - Temperature : 5 ~ 40 , Humidity : less than 30% c. If the package has been opened more than 1week or the color of desiccant changes, Components should be dried for 10-12hr at 60 5 * Any mechanical force or any excess vibration shall not be accepted to apply during cooling process to normal temp. after soldering. * Avoid quick cooling * Leadframes are silver plated SPCC. The silver plate surface may be affected by environments which contains corrosive substances. Please avoid conditions which may cause the LEDs to corrode, tarnish or discolor. 2) Lead Forming * When the lead forming is required before soldering , care must be taken to avoid any bending and mechanical stress. The stress to the base may damage the LEDs. * When mounting the LEDs onto a PCB, the holes on the circuit board should be exactly aligned with the leads of the LEDs. * It is recommended that tooling made to precisely form and cut the leads to length rather than rely on hand operating. ~30 Humidity : 50% max. b. The products should be used in 3 months. It is recommended that the LEDs be used as
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3) Static Electricity
LY350
* Static Electricity and surge voltage damage the LEDs. So it is recommended that a wrist band or an anti-electrostatic glove be used when handling the LEDs. * All devices, equipment and machinery must be grounded properly. It is recommended that precautions should be taken against surge voltage to the equipment that mounts the LEDs. 4) Heat Generation * Thermal is one of the important parameters to design the end product. Please consider the heat generation of the LEDs. * The operating current should be decided after considering the ambient maximum temperature of LEDs.
5) Others * The color of the LEDs is changed slightly an operating current and thermal. * Anti radioactive ray design is not considered for the products listed here. * Gallium arsenide is used in some of the products listed in this publication. These products are dangerous if they are burned or smashed in the process of disposal. It is also dangerous to drink the liquid or inhale the gas generated by such products when chemically disposed. * This device should not be used in any type of fluid such as water, oil, organic solvent and etc. When washing is required, IPA(Isopropyl Alcohol) should be used. * When the LEDs are illuminating, operating current should be decided after considering the junction temperature. Cf.) Please refer Ambient temperature vs. Forward Current graph on page 5 * The appearance and specifications of the product may be modified for improvement without notice.
SEOUL SEMICONDUCTOR CO., LTD. 148-29, Kasan-Dong, Keumchun-Gu, Seoul, Korea TEL : +82-2-3281-6269 FAX :+82-2-858-5537 Homepage : www.seoulsemicon.com www.zled.com E-Store : www.zledstore.com E-mail : sscsale@seoulsemicon.com
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