LTSN-LST676BINT - Lite-On Electronics, Inc.

LITE-ON TECHNOLOGY CORPORATION

Property of Lite-On Only

Features

* Package in 8mm tape on 7" diameter reels.

* Compatible with automatic placement equipment.

* Compatible with infrared and vapor phase reflow solder process.

* EIA STD package.

* I.C. compatible.

Package Dimensions

Part No. Lens Color Source Color

LTSN-LST676 Water Clear AlInGaP Red

Notes:

1. All dimensions are in millimeters (inches).

2. Tolerance is ±0.2 mm (.008") unless otherwise noted.

Part No. : LTSN-LST676 Page : 1 of 10

BNS-OD-C131/A4

LITE-ON TECHNOLOGY CORPORATION

Property of Lite-On Only

Absolute Maximum Ratings at Ta=25℃

Parameter LTSN-LST676 Unit

Power Dissipation 75 mW

Peak Forward Current

(1/10 Duty Cycle, 0.1ms Pulse Width) 80 mA

DC Forward Current 30 mA

Derating Linear From 50℃ 0.4 mA/℃

Reverse Voltage 5 V

Operating Temperature Range -55℃ to + 100℃

Storage Temperature Range -55℃ to + 100℃

Suggest IR Reflow Condition :

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Heat-Resistant

Assembly

LITE-ON TECHNOLOGY CORPORATION

Property of Lite-On Only

Electrical / Optical Characteristics at Ta=25℃

Parameter Symbol Part No.

LTSN- Min. Typ. Max. Unit Test Condition

Luminous Intensity IV LST676 71 200 mcd

IF = 20mA

Note 1, 4

Iv sepc. table

Viewing Angle 2θ1/2 LST676 120 deg Note 2 (Fig.6)

Peak Emission

Wavelength λP LST676 639 nm

Measurement

@Peak (Fig.1)

Dominant Wavelength λd LST676 631 nm Note 3

Spectral Line

Half-Width ∆λ LST676 20 nm

Forward Voltage VF LST676 2.0 2.4 V IF = 20mA

Reverse Current IR LST676 100 μA VR = 5V

Capacitance C LST676 40 PF V F = 0 ,

f = 1 M H Z

NOTE:

1. Luminous intensity is measured with a light sensor and filter combination that approximates the CIE

eye-response curve.

2.θ1/2 is the off-axis angle at which the luminous intensity is half the axial luminous intensity.

3. The dominant wavelength, λd is derived from the CIE chromaticity diagram and represents the single

wavelength which defines the color of the device.

4. The Iv data did not including ±15% testing tolerance.

Part No. : LTSN-LST676 Page : 3 of 10

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Property of Lite-On Only

Bin Code List

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Luminous Intensity Unit : mcd @20mA

Bin Code Min. Max.

Q 71 112

R 112 180

S 180 280

T 280 450

Tolerance on each Intensity bin is +/-15%

LITE-ON TECHNOLOGY CORPORATION

Property of Lite-On Only

Typical Electrical / Optical Characteristics Curves

(25°C Ambient Temperature Unless Otherwise Noted)

Part No. : LTSN-LST676 Page : 5 of 10

BNS-OD-C131/A4

LITE-ON TECHNOLOGY CORPORATION

Property of Lite-On Only

User Guide

Cleaning

Do not use unspecified chemical liquid to clean LED they could harm the package.

If cleaning is necessary, immerse the LED in ethyl alcohol or isopropyl alcohol at

normal temperature for less one minute.

Recommend Printed Circuit Board Attachment Pad

Infrared / vapor phase

Reflow Soldering

Package Dimensions Of Tape And Reel

Note:

1.All dimensions are in millimeters (inches).

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BNS-OD-C131/A4

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Property of Lite-On Only

Package Dimensions of Reel

Notes:

1. Empty component pockets sealed with top cover tape.

2. 7 inch reel-2000 pieces per reel.

3. The maximum number of consecutive missing lamps is two.

4. In accordance with ANSI/EIA RS-481 specifications.

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LITE-ON TECHNOLOGY CORPORATION

Property of Lite-On Only

Part No. : LTSN-LST676 Page : 7 of 10

BNS-OD-C131/A4

CAUTIONS

1. Application

The LEDs described here are intended to be used for ordinary electronic equipment (such as office

equipment, communication equipment and household applications).Consult Liteon’s Sales in advance

for information on applications in which exceptional reliability is required, particularly when the failure

or malfunction of the LEDs may directly jeopardize life or health (such as in aviation, transportation,

traffic control equipment, medical and life support systems and safety devices).

2. Storage

The storage ambient for the LEDs should not exceed 30°C temperature or 70% relative humidity.

It is recommended that LEDs out of their original packaging are IR-reflowed within one week.

For extended storage out of their original packaging, it is recommended that the LEDs be stored in a

sealed container with appropriate desiccant, or in a desiccators with nitrogen ambient.

LEDs stored out of their original packaging for more than a week should be baked at about 60 deg C

for at least 24 hours before solder assembly.

3. Cleaning

Use alcohol-based cleaning solvents such as isopropyl alcohol to clean the LED if necessary.

4. Soldering

Recommended soldering conditions:

Reflow soldering Wave Soldering Soldering iron

Pre-heat

Pre-heat time

Peak temperature

Soldering time

120~150°C

120 sec. Max.

260°C Max.

10 sec. Max.

Pre-heat

Pre-heat time

Solder wave

Soldering time

100°C Max.

60 sec. Max.

260°C Max.

10 sec. Max.

Temperature

Soldering time

300°C Max.

3 sec. Max.

(one time only)

5. Drive Method

An LED is a current-operated device. In order to ensure intensity uniformity on multiple LEDs

connected in parallel in an application, it is recommended that a current limiting resistor be incorporated

in the drive circuit, in series with each LED as shown in Circuit A below.

Circuit model A Circuit model B

LED

(A) Recommended circuit.

(B) The brightness of each LED might appear different due to the differences in the I-V characteristics

of those LEDs.

6. ESD (Electrostatic Discharge)

Static Electricity or power surge will damage the LED.

Suggestions to prevent ESD damage:

 Use of a conductive wrist band or anti-electrostatic glove when handling these LEDs.

 All devices, equipment, and machinery must be properly grounded.

 Work tables, storage racks, etc. should be properly grounded.

 Use ion blower to neutralize the static charge which might have built up on surface of the LED’s

plastic lens as a result of friction between LEDs during storage and handling.

LITE-ON TECHNOLOGY CORPORATION

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Part No. : LTSN-LST676 Page : 8 of 10

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ESD-damaged LEDs will exhibit abnormal characteristics such as high reverse leakage current, low

forward voltage, or “ no lightup ” at low currents.

To verify for ESD damage, check for “ lightup ” and Vf of the suspect LEDs at low currents.

The Vf of “ good ” LEDs should be >2.0V@0.1mA for InGaN product and >1.4V@0.1mA for AlInGaP

product.

7. Reliability Test

Classification Test Item Test Condition Reference Standard

Operation Life

Ta= Under Room Temperature As Per Data Sheet

Maximum Rating

*Test Time= 1000HRS (-24HRS,+72HRS)*@20mA.

MIL-STD-750D:1026 (1995)

MIL-STD-883D:1005 (1991)

JIS C 7021:B-1 (1982)

High Temperature

High Humidity

Storage

IR-Reflow In-Board, 2 Times

Ta= 65±5℃,RH= 90〜95%

*Test Time= 240HRS±2HRS

MIL-STD-202F:103B(1980)

JIS C 7021:B-11(1982)

High Temperature

Storage

Ta= 105±5℃

*Test Time= 1000HRS (-24HRS,+72HRS)

MIL-STD-883D:1008 (1991)

JIS C 7021:B-10 (1982)

Endurance

Test

Low Temperature

Storage

Ta= -55±5℃

*Test Time=1000HRS (-24HRS,+72H RS) JIS C 7021:B-12 (1982)

Temperature

Cycling

105℃ 〜 25℃ 〜 -55℃ 〜 25℃

30mins 5mins 30mins 5mins

10 Cycles

MIL-STD-202F:107D (1980)

MIL-STD-750D:1051(1995)

MIL-STD-883D:1010 (1991)

JIS C 7021:A-4(1982)

Thermal

Shock

IR-Reflow In-Board, 2 Times

85 ± 5℃ 〜 -40℃ ± 5℃

10mins 10mins 10 Cycles

MIL-STD-202F:107D(1980)

MIL-STD-750D:1051(1995)

MIL-STD-883D:1011 (1991)

IR-Reflow

Ramp-up rate(183℃ to Peak) +3℃/ second max

Temp. maintain at 125(±25)℃ 120 seconds max

Temp. maintain above 183℃ 60-150 seconds

Peak temperature range 235℃+5/-0℃

Time within 5°C of actual Peak Temperature (tp)

10-30 seconds

Ramp-down rate +6℃/second max

MIL-STD-750D:2031.2(1995)

J-STD-020(1999)

Environmental

Test

Solderability

T.sol= 235 ± 5℃

Immersion time 2±0.5 sec

Immersion rate 25±2.5 mm/sec

Coverage ≧95% of the dipped surface

MIL-STD-202F:208D(1980)

MIL-STD-750D:2026(1995)

MIL-STD-883D:2003(1991)

IEC 68 Part 2-20

JIS C 7021:A-2(1982)

8. Others

The appearance and specifications of the product may be modified for improvement without prior notice.

LITE-ON TECHNOLOGY CORPORATION

Property of Lite-On Only

9. Suggested Checking List

Training and Certification

1. Everyone working in a static-safe area is ESD-certified?

2. Training records kept and re-certification dates monitored?

Static-Safe Workstation & Work Areas

1. Static-safe workstation or work-areas have ESD signs?

2. All surfaces and objects at all static-safe workstation and within 1 ft measure less than 100V?

3. All ionizer activated, positioned towards the units?

4. Each work surface mats grounding is good?

Personnel Grounding

1. Every person (including visitors) handling ESD sensitive (ESDS) items wears wrist strap, heel

strap or conductive shoes with conductive flooring?

2. If conductive footwear used, conductive flooring also present where operator stand or walk?

3. Garments, hairs or anything closer than 1 ft to ESD items measure less than 100V*?

4. Every wrist strap or heel strap/conductive shoes checked daily and result recorded for all DLs?

5. All wrist strap or heel strap checkers calibration up to date?

Note: *50V for Blue LED.

Device Handling

1. Every ESDS items identified by EIA-471 labels on item or packaging?

2. All ESDS items completely inside properly closed static-shielding containers when not at

static-safe workstation?

3. No static charge generators (e.g. plastics) inside shielding containers with ESDS items?

4. All flexible conductive and dissipative package materials inspected before reuse or recycles?

Others

1. Audit result reported to entity ESD control coordinator?

2. Corrective action from previous audits completed?

3. Are audit records complete and on file?

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