LT370 SEOUL | Alldatasheet

Document overview

  • Manufacturer or author: pROVIDED bY alldatasheet.com(free datasheet download site)
  • PDF pages: 10

Technical content

Features

  • High luminous emission
  • Non-standoff leads
  • 3mm type package
  • Transparent epoxy lens
  • Viewing angle : 70 º
  • Dominant Wavelength : 527nm

Applications

  • Electronic signs and signals
  • Specialty lighting
  • Small area illumination
  • Backlighting
  • Outdoor displays

-2- GREEN LAMP LED LT370 <070601> Rev. 0.1 서식번호 : QP-7-03-05 (Rev.00) Outline Dimensions Unit : mm 2.5 ± 0.05 ANODE 2.35 ± 0.1 4.2 ± 0.2 3.1 ± 0.2 0.5 +0.2 -0.1 DETAIL 1.0 3.8 ± 0.2

0.5 MAX

5.3 ± 0.1

1.0 MIN

28.0 MIN

0.5 ± 0.05 Notes : Protruded epoxy is 0.5mm maximum.

-3- GREEN LAMP LED LT370 <070601> Rev. 0.1 서식번호 : QP-7-03-05 (Rev.00) Electro-Optical Characteristics ( Ta = 25ºC, IF=20mA ) 536527 V4.03.6-VFForward Voltage [4] 70 deg.2θ½View Angle nm519λdDominant Wavelength[3] -1200700 µA-IRReverse Current (at VR = 5V) Max.Typ.Min. mcdIV [2]Luminous Intensity [1] Unit Value SymbolItem Absolute Maximum Ratings ( Ta = 25ºC ) mW120PDPower Dissipation V5VRReverse Voltage ºC260ºC for 10seconds [6]TsSolder Temperature ºC-30 ~ 85ToprOperating Temperature mA100IFP [5]Forward Peak Pulse Current ºC-40 ~ 100TstgStorage Temperature mA30IFDC Forward Current UnitValueSymbolItem 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 [6] No lower than 3mm from the base of the epoxy bulb.

-4- GREEN LAMP LED LT370 <070601> Rev. 0.1 서식번호 : QP-7-03-05 (Rev.00) Reliability Tests 0/221 time1kV, 1.5kΩ ; 100pFESD (Human Body Model) cycles Ta = -40ºC (30min) ~ 100º (30min) (Transfer time : 10sec, 1Cycle = 1hr)Thermal Shock 0/22100hrsTa = 85ºC, RH = 85%, IF = 8mATemperature Humidity Operating 0/221000hrsTa = 85ºC, RH = 85%Temperature Humidity Storage 0/221000hrsTa = -40ºCLow Temperature Storage 0/221000hrsTa = 100ºCHigh Temperature Storage Failures 1 timeTs = 255 ± 5ºC, t = 10secResistance to soldering Heat 1000hrsTa = 85ºC, IF = 8mAHigh Temperature Operating 1000hrsTa = -30ºC, IF = 20mALow Temperature Operating 1000hrsTa = RT, IF = 30mALife Test NoteConditionItem < Judging Criteria For Reliability Tests > LSL [2] X 0.5ФV USL X 2.0IR USL[1] X 1.2VF Notes : [1] USL : Upper Standard Level [2] LSL : Lower Standard Level.

-5- GREEN LAMP LED LT370 <070601> Rev. 0.1 서식번호 : QP-7-03-05 (Rev.00) Characteristic Diagrams Ta= 25ºCTa= 25ºC Forward Current(mA) Forward Voltage [V] 0 102 0 304 05 0 0.0 0.5 1.0 1.5 2.0 2.5 Relative Luminous Intensity Forward Current [mA] Forward Current vs. Relative IntensityForward Voltage vs. Forward Current -90 -60 -30 0 30 60 90 0.0 0.2 0.4 0.6 0.8 1.0 Relative Luminous Intensity Off Axis Angle [deg.] Ta= 25ºC, IF= 20mA -40 -20 0 20 40 60 80 100 Forward Current IF [mA] Ambient Temperature Ta[ o Ambient Temperature vs. Maximum Forward Current Directivity

-6- GREEN LAMP LED LT370 <070601> Rev. 0.1 서식번호 : QP-7-03-05 (Rev.00) Bin Code Description -1A Forward VoltageDominant Wavelength Luminous Intensity Bin Code Not yet available ranks 1200700A 20001200B 50002000C Max.Min.Bin Code Luminous Intensity (mcd) @ IF = 20mA 5305252 5255191 5365303 Max.Min.Bin Code Dominant Wavelength (nm) @ IF = 20mA 4.02.9- Max.Min.Bin Code Forward Voltage (V) @ IF = 20mA

-7- GREEN LAMP LED LT370 <070601> Rev. 0.1 서식번호 : QP-7-03-05 (Rev.00) (2bags max/box) * Inner box Unit : mm 420 420 430 * Antistatic poly bag (50000pcs max/box) (50boxes max/box) * Cardboard box (500pcs max/bag) 170 LXXXX RANK : XXXX QTY : 500pcs LOT : 20XX.XX.XX SEOUL SEMICONDUCTOR CO., LTD Packing

-8- GREEN LAMP LED LT370 <070601> Rev. 0.1 서식번호 : QP-7-03-05 (Rev.00) Soldering Profile 1) Wave Soldering Conditions / Profile

  • Preliminary heating to be at 85ºC(120 ºC max) for 20 seconds(60 seconds max).
  • Soldering heat to be at 255 ºC (260ºC max) for 10 seconds
  • Soak time above 200 ºC is 5 seconds 2) Hand Soldering conditions
  • Not more than 3 seconds at max. 350ºC, under Soldering iron. 3) Caution
  • The LEDs must not be repositioned after soldering.
  • Do not apply any stress to the lead particularly when heat. 0 2 4 6 8 10 1 2 1 4 16 18 2 0 22 24 26 2 8 30 3 2 34 36 10 0 15 0 20 0 25 0 30 0 Temperature [ O Ti m e [s ] PREHEAT 20s (60s Max) 85 ºC(120 ºC max) PEAK 10s 255 ºC (260 ºC max) Note : In case the soldered products are reused in soldering process, we don’t guarantee the products.

-9- GREEN LAMP LED LT370 <070601> Rev. 0.1 서식번호 : QP-7-03-05 (Rev.00) Precaution for Use 1) Storage

  • Before opening the package a. Avoid the absorption of moisture, we recommended to store the LEDs in a dry box(or desiccator) with a desiccant . Otherwise, store them in the following environment: Temperature : 5℃~30℃ Humidity : 50% max. b. The products should be used in 3 months. It is recommended that the LEDs be used as 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.

-10- GREEN LAMP LED LT370 <070601> Rev. 0.1 서식번호 : QP-7-03-05 (Rev.00) 3) Static Electricity

  • 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