Datasheet LTST-C170TBKT Specification

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Features

* Meet ROHS, Green Product. * 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 Source Color

LTST-C170TBKT Water Clear InGaN Blue

Notes:

1. All dimensions are in millimeters (inches).

2. Tolerance is ± 0.10 mm (.004") unless otherwise noted.

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Absolute Maximum Ratings At Ta=25

Parameter LTST-C170TBKT

℃℃℃℃

Power Dissipation 76 mW

Peak Forward Current (1/10 Duty Cycle, 0.1ms Pulse Width)

100 mA

DC Forward Current 20 mA

Derating Linear From 25°C 0.25 mA/°C

Reverse Voltage

Operating Temperature Range

Note A

5 V

-20°C to + 80°C

Unit

Storage Temperature Range

Wave Soldering Condition

Infrared Soldering Condition

Vapor Phase Soldering Condition

Note A: Reverse Voltage can’t be continued operating

-30°C to + 100°C

260°C For 5 Seconds

215°C For 3 Minutes

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Suggestion Profile:

(1) Suggestion IR Reflow Profile For Normal Process

(2) Suggestion IR Reflow Profile For Pb Free Process

R ec o m m en de d P ro fi le B e tw ee n A ss em ble A n d H e at-R e s is ta n c e L in e

T he P ro fi l e is a v a il a b l e t h a t m us t t o u se S n A g C u s o ld e r p as t e

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Electrical Optical Characteristics At Ta=25

Parameter Symbol

Luminous Intensity IV C170TBKT

Viewing Angle

Peak Emission Wavelength

Dominant Wavelength

Spectral Line Half-Width

2θ1/2

Δλ

Part No.

LTST-

C170TBKT

C170TBKT 465.0 - 475.0 nm

C170TBKT

℃℃℃℃

Min. Typ. Max. Unit Test Condition

28.0 - 180 mcd

130 deg Note 2 (Fig.6)

468 nm

25 nm

IF = 20mA

Note 1

Measurement

@Peak (Fig.1)

IF = 20mA

Note 3

Forward Voltage VF C170TBKT

Reverse Current IR C170TBKT

Notes: 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. Caution in ESD:

Static Electricity and surge damages the LED. It is recommend to use a wrist band or anti-electrostatic

glove when handling the LED. All devices, equipment and machinery must be properly grounded.

2.80 - 3.80 V IF = 20mA

VR = 5V

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Bin Code List

Forward Voltage Unit: V @20mA

Bin Code Min. Max.

D7 2.80 3.00 D8 3.00 3.20

D9 3.20 3.40 D10 3.40 3.60 D11 3.60 3.80

Tolerance on each Forward Voltage bin is +/-0.1 volt

Luminous Intensity Unit : mcd @20mA

Bin Code Min. Max.

N 28.0 45.0

P 45.0 71.0 Q 71.0 112.0 R 112.0 180.0

Tolerance on each Intensity bin is +/-15%

Dominant Wavelength Unit : nm @20mA

Bin Code Min. Max.

AC 465.0 470.0 AD 470.0 475.0

Tolerance for each Dominate Wavelength bin is +/- 1nm

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Typical Electrical / Optical Characteristics Curves

(25 °C Ambient Temperature Unless Otherwise Noted)

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isopropyl alcohol at normal temperature for

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Cleaning

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

If clean is necessary, immerse the LED in ethyl alcohol or in

less one minute.

Suggest Soldering Pad Dimensions

Package Dimensions Of Tape And Reel

Notes:

1. All dimensions are in millimeters (inches).

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Notes:

1. Empty component pockets sealed with top cover tape.

2. 7 inch reel-3000 pieces per reel.

3. Minimum packing quantity is 500 pcs for remainders.

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

5. In accordance with ANSI/EIA 481-1-A-1994 specifications.

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CAUTIONS

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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. 240°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.

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

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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 >[email protected] for InGaN product and >[email protected] for AlInGaP product.

7. Reliability Test

Classification

Endurance

Test

Test Item Test Condition Reference Standard

Operation Life

High Temperature

High Humidity

Storage

High Temperature

Storage

Low Temperature

Storage

Temperature

Cycling

Thermal

Shock

Solder

Resistance

Ta= Under Room Temperature As Per Data Sheet Maximum Rating *Test Time= 1000HRS (-24HRS,+72HRS)

IR-Reflow In-Board, 2 Times Ta= 65±5℃,RH= 90～95%

Test Time= 240HRS±2HRS

Ta= 105±5℃

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

Ta= -55±5℃

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

105℃ ～ 25℃ ～ -55℃ ～ 25℃ 30mins 5mins 30mins 5mins 10 Cycles

IR-Reflow In-Board, 2 Times 85 ± 5℃ ～ -40℃ ± 5℃ 10mins 10mins 10 Cycles

T.sol= 260 ± 5℃ Dwell Time= 10 ± 1secs

MIL-STD-750D:1026 (1995) MIL-STD-883D:1005 (1991) JIS C 7021:B-1 (1982)

MIL-STD-202F:103B(1980) JIS C 7021:B-11(1982)

MIL-STD-883D:1008 (1991) JIS C 7021:B-10 (1982)

JIS C 7021:B-12 (1982)

MIL-STD-202F:107D (1980) MIL-STD-750D:1051(1995) MIL-STD-883D:1010 (1991) JIS C 7021:A-4(1982)

MIL-STD-202F:107D(1980) MIL-STD-750D:1051(1995) MIL-STD-883D:1011 (1991)

MIL-STD-202F:210A(1980) MIL-STD-750D:2031(1995) JIS C 7021:A-1(1982)

Environmental

Test

IR-Reflow

Normal Process

IR-Reflow

Pb Free Process

Solderability

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

Ramp-up rate(217 to Peak) +3 / second max℃ ℃ Temp. maintain at 175(±25) ℃ 180 seconds max Temp. maintain above 217 60℃ -150 seconds Peak temperature range 260 +0/℃ -5℃ Time within 5°C of actual Peak Temperature (tp) 20-40 seconds Ramp-down rate +6 /second max℃

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-750D:2031.2(1995) J-STD-020(1999)

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.

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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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