CL-L270-2MU1L2-A1 - Citizen

1. Scope of Application

These specifications apply to chip type LED lamp, model CL-L270-2MU1L2-A1-T.

2. Part code

Series

L270 : White LED for general lighting.

Quantity of dies

2 : 2Dies.

Special specifications

M : General Color Rendering Index Typ.85 type.

Watt class

U1 : Under 1 watt package.

Lighting color

L2 : Compliance with ANSI C78.377-2008, 3-step MacAdam ellipse,

Correlated Color Temperature 2700K.

Shipping mode

Non-coded : Bulk

T : Taping (standard)

CITIZEN ELECTRONICS CO.,LTD. JAPAN

Symbol

CITILED

Name CL-L270-2MU1L2-A1

- T1M U 1 -L 2 -2

1 / 12

C L -

DATA SHEET

L 2 7 0

Ref.CE-P1407 08/11

3. Outline drawing

Unit: mm

Tolerance: ±0.1

4. Performance

(1) Absolute Maximum Rating

*1 Forward Current : Duty ≦ 1/10, Pulse width ≦ 10 msec

*2 D.C. Current : T

= Ts + R

j-s

× P

Pulse Current : T

= Ts + R

j-s

× P

(Power Dissipation / One-Pulse) × Duty

*Ts:Temperature of Solder terminal(4)

(2) Electro-optical Characteristic

(Ts=25C)

Rank information

CUSTOMER:

e.g.

Q 1 B

TYPE:

CL-L270-2MU1L2-A1

P.NO:

e.g.

Q 1 B

Lot No: XXXXXX

Q'ty: XXX

Ranking by Forward Voltage

Ranking by Chromaticity coordinates

Ranking by Luminous Intensity

CITIZEN ELECTRONICS CO.,LTD. JAPAN

Symbol

CITILED

Name CL-L270-2MU1L2-A1

Luminous Flux

- 75

16.7

=60mA

junction-solder

General Color Rendering Index

3.3

Thermal resistance Rj-s

=60mA

12.5

3.02.7 V

C/W

20.9

Max. UnitMin. Typ.Parameter Symbol Condition

Forward Voltage

=60mA

120

Unit

120

Junction Temperature

jMax.

-30 ~ +85

-40 ~ +100

Forward Pulse Current

Reverse Current

Operating Temperature

Storage Temperature

100

Symbol

0.34

2 / 12

Parameter

Power Dissipation

DATA SHEET

Forward Current

Rating Value

PASS

CITIZEN ELECTRONICS

polarity

Ref.CE-P1407 08/11

Chromaticity coordinates (Condition : IF=60mA , Ts=25C)

Ranking(Condition:IF=60mA, Ts=25C)

Note 1) The tolerance of forward voltage(V

) measurement is V

±3% at our tester

Note 2) The tolerance of luminous Intensity(I

) measurement is ±10% at our tester

Note 3) The tolerance of Chromaticity coordinates (x,y)measurement is ±0.01 at our tester

Measurement Conditions

1) Chip is mounted on board( size 100mm×40mm)

2) Board material is FR-4, covered with green color resist and thickness of copper is 18µm.

CL-L270-2MU1L2-A1

CITIZEN ELECTRONICS CO.,LTD. JAPAN

DATA SHEET

Max.

2.90

3 / 12

Min.

Unit

Luminous Flux φV

Parameter

Symbol

Rank

Forward Voltage V

18.1

20.9

12.5

C 15.3

18.1

Symbol

CITILED

Name

3.10 3.30

3.102.90

2.70

15.3

Reference　(ANSI C78.377)

x y x y

0.4578 0.4101 Center 0.4578 0.4101 (2725K)

a 0.4813 0.4319

a 0.00774 b 0.4562 0.4260

b 0.00411 c 0.4373 0.3893

θ° 57.28 d 0.4593 0.3944

*Color region stay within MacAdam "3-step" ellipse from the chromaticity center.

*The chromaticity center refers to ANSI C78.377:2008.

Please refer to ANSI C78.377 for the chromaticity center.

*θ is the angle between the major axis of the ellipse and the x-axis,

　 and a and b are the major and minor semi-axes of an ellipse. (Ref. IEC 60081:1997 AnnexD)

Color rank

Center

Oval parameter

x-y chart-CIE1931

0.38

0.39

0.40

0.41

0.42

0.43

0.44

0.43 0.44 0.45 0.46 0.47 0.48 0.49

Color region

(ANSI)

B.B. Locus

2600K

2900K 2700K

2500K

2800K

Ref.CE-P1407 08/11

5. Characteristic

・Forward Current vs. Relative Luminous Intensity ・Forward Current vs. Forward Voltage

・Solder Temperature vs. Relative Luminous Intensity ・Solder Temperature vs. Forward Voltage

・Solder Temperature vs. Allowable Forward Current

Chip on board

board size:100mm×40mm

Materials:FR-4

Thickness of Copper:18um

CITIZEN ELECTRONICS CO.,LTD. JAPAN

DATA SHEET

Symbol

CITILED

Name CL-L270-2MU1L2-A1

4 / 12

25%

50%

75%

100%

125%

150%

175%

0 20 40 60 80 100 120

[mA]

Relative Luminous Intensity

[a.u.]

Ts=25C

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

0 20 40 60 80 100 120

[mA]

[V]

Ts=25C

20%

40%

60%

80%

100%

120%

0 20 40 60 80 100 120

Ts [C]

Relative Luminous Intensity

[a.u.]

=60mA

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

0 20 40 60 80 100 120

Ts [C]

[V]

=60mA

100

120

0 20 40 60 80 100 120

Ts [C]

[mA]

Ref.CE-P1407 08/11

5. Characteristic (2)

・Forward Current vs. Chromaticity Coordinate ・Solder Temperature vs. Chromaticity Coordinate

Directive Characteristic

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5 / 12

DATA SHEET

Symbol

CITILED

Name CL-L270-2MU1L2-A1

-0.025

-0.020

-0.015

-0.010

-0.005

0.000

0.005

0.010

0.015

0.020

0.025

0 20 40 60 80 100 120

[mA]

∆x∆y

Ts=25C

-0.025

-0.020

-0.015

-0.010

-0.005

0.000

0.005

0.010

0.015

0.020

0.025

0 20 40 60 80 100 120

Ts [C]

∆x∆y

=60mA

0.0

0.2

0.4

0.6

0.8

1.0

80°

70°

60°

50°

40°

30°20°

10°

-80°

-70°

-60°

-50°

-20°-30°

-40° -10° 0°

0.0

0.2

0.4

0.6

0.8

1.0

80°

70°

60°

50°

40°

30°20°

10°

-80°

-70°

-60°

-50°

-20°-30°-40° -10° 0°

Ref.CE-P1407 08/11

6.Reliability

(1) Details of the tests

(2) Judgment Criteria of Failure for Reliability Test

Symbol

U means the upper limit of the specified characteristics.

S means the initial value.

Note: Measurement shall be taken between 2 hours and 24 hours, having returned the test

CITIZEN ELECTRONICS CO.,LTD. JAPAN

Symbol

CITILED

Name CL-L270-2MU1L2-A1

Measuring Item

=60mA

> U×1.2

Luminous Intensity

pieces to the normal ambient conditions after the completion of each test.

=60mA

< S×0.7

6 / 12

Test Item

Test Condition

Ta=25 C, IF=60 mA × 1000 hours Life Test in Continuous Operation

DATA SHEET

Low Temperature Storage Test Ta=-40 C × 1000 hours

Ta=-40 C × 30 minutes and Ta=100 C × 30 minutes,

100cycle

Thermal Shock Test

Forward Voltage

Ta=100 C × 1000 hours

Ta=60 C, 90 %RH for 1000 hours

High Temperature Storage Test

Moisture-proof Test

Solder Heat Resistance Test

Recommended temperature profile (reflow soldering)× 2,

(2nd test must be started after the samples are

stabilized thermally.)

Measuring Conditon

Judgement Criteria for Failure

Ref.CE-P1407 08/11

7. Taping Specifications (in accordance with JIS standard)

(1) Shape and Dimensions of Reel

(Unit: mm)

(2) Dimensions of Tape

(Unit: mm)

(3) Configuration of Tape

(4) Quantity: 3000pcs/reel

CL-L270-2MU1L2-A1

CITIZEN ELECTRONICS CO.,LTD. JAPAN

DATA SHEET

7 / 12

Symbol

CITILED

Name

(END) (START)

Unloaded tape

Mounted with CITILEDmore than 40mm Leading part more than 400mm

6 0

+ 1

±0.3

11.4

±1.0

±0.8

Name.

Qty

Lot No.

±0.5

1 8 0

Ref.CE-P1407 08/11

8. Packing Specifications

8-1. Moisture-proof Packing

To prevent moisture absorption during transportation and storage, reels are packed in

aluminum envelopes which contain a desiccant with a humidity indicator.

8-2. Storage

To prevent moisture absorption, it is strongly recommended that reels (in bulk or

taped) should be stored in the dry box (or the desiccator) with a desiccant as the

appropriate storage place. If not, the following is recommended.

Temperature: 5 ~ 30 C

Humidity: 60%RH max

The devices should be mounted as soon as possible after unpacking. If you store the

unpacked reels, please store them in the dry box or seal them into the envelop again.

Moisture Sensitive Level1 (IPC/JEDEC J-STD-020C)

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8 / 12

DATA SHEET

Symbol

CITILED

Name CL-L270-2MU1L2-A1

Aluminum envelop

Desiccant

Label

Reel

Polyester Zip fastener

Ref.CE-P1407 08/11

9. Precautions

9-1. Soldering

(1) Lead free soldering

1) Following soldering paste is recommended

Melting temperature: 216 ~ 220 C.

Composition: Sn / 3.5Ag / 0.75Cu

2) The temperature profile at the top surface of the parts is recommended as shown

below.

3) It is requested that products should be handled after their temperature has dropped

down to the normal room temperature

9-2. Washing

(1) When washing after soldering is needed, following conditions are requested.

a) Washing solvent: Pure Water

b) Temperature, time: 50 C or less × 30 seconds max.

or 30 C or less × 3 minutes max.

c) Ultrasonic washing: 300W or less

9-3. Other directions

(1) It is requested to avoid any stress added to the resin portion while it is heated.

(2) It is requested to avoid any friction by sharp metal nail etc. to the resin portion.

(3) For outdoor use, necessary measures should be taken to prevent water,

moisture and salt air damage.

This product is NOT designed with following conditions in mind.

In water, oil, medicament, organic solvent and dust-laden environment.

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9 / 12

DATA SHEET

Symbol

CITILED

Name CL-L270-2MU1L2-A1

140sec

160

180

°C

/sec. Max

T e m p e ra t ure

Time

°C

/sec. Max 260

°C

Max

220

°C

70sec

sec

. Max

Ref.CE-P1407 08/11

10. Designing precautions

(1) The current limiting resistor should be placed in the circuit so that is driven within its

rating. Also avoid reverse voltage (over-current) applied instantaneously when ON or OFF.

(2) When pulse driving current is applied, average current consumption should be within the

rating. Also avoid reverse voltage applied when put off.

(3) Recommended soldering pattern

Unit : mm

Mountability and solderability need to be optimized with actual conditions

such as amount of solder, reflow temperature applied in the process.

(4) When assembling the circuit board into the finished products, care must be taken to avoid

the component parts from touching other parts.

(5) When using multiple LEDs, it is required to connect a current limiting resistor on

each path which the current flows to the LEDs.

(ex-1) (ex-2) (ex-3)

(6) Other

1) This product complies with RoHS directives.

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10 / 12

DATA SHEET

Symbol

CITILED

Name CL-L270-2MU1L2-A1

R R

R R R R

Ref.CE-P1407 08/11

11. Precautions with regard to product use

1. This document is provided for reference purposes only so that CITIZEN ELECTRONICS'

products are used as intended. CITIZEN ELECTRONICS neither makes warranties or

representations with respect to the accuracy or completeness of the information contained

in this document nor grants any license to any intellectual property rights or any other

rights of CITIZEN ELECTRONICS or any third party with respect to the information

in this document.

2. All information included in this document such as product data, diagrams, charts,

is current as of the date this document is issued.

Such information, however, is subject to change without any prior notice.

Before purchasing or using any CITIZEN ELECTRONICS' products listed in this document,

please confirm the latest product information with a CITIZEN ELECTRONICS' sales office,

and formal specifications must be exchanged and signed by both parties prior to mass production.

3. CITIZEN ELECTRONICS has used reasonable care in compiling the information

included in this document,

but CITIZEN ELECTRONICS assumes no liability whatsoever for any damages incurred as

a result of errors or omissions in the information included in this document.

4. Absent ａ written signed agreement, except as provided in the relevant terms and conditions of

sale for product, and to the maximum extent allowable by law, CITIZEN ELECTRONICS

assumes no liability whatsoever, including without limitation, indirect, consequential, special,

or incidental damages or loss, including without limitation, loss of profits, loss of opportunities,

business interruption and loss of data, and disclaims any and all express or implied warranties

and conditions related to sale, use of product, or information, including warranties

or conditions of merchantability, fitness for a particular purpose, accuracy of information,

or no infringement.

5. Though CITIZEN ELECTRONICS works continually to improve products' quality and reliability,

products can malfunction or fail. Customers are responsible for complying with safety standards

and for providing adequate designs and safeguards to minimize risk and avoid situations

in which a malfunction or failure of a product could cause loss of human life,

bodily injury or damage to property, including data loss or corruption.

In addition, customers are also responsible for determining the appropriateness of

use of any information contained in this document such as application cases not only with

evaluating by their own but also by the entire system.

CITIZEN ELECTRONICS assumes no liability for customers' product design or applications.

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11 / 12

DATA SHEET

Symbol

CITILED

Name CL-L270-2MU1L2-A1

Ref.CE-P1407 08/11

6. Eye Safety

- The International Electrical Commission (IEC) published in 2006 IEC 62471

”2006 Photobiological safety oflamps and lamp systems ” which includes LEDs within its scope.

When sorting single LEDs according to IEC 62471, most LEDs can be classified as belonging to

either Exempt Group or Risk Group 1.

- Optical characteristics of LEDs such as radiant flux, spectrum and light distribution are factors

that affect the risk group determination of the LED, and especially a high-power LED,

that emits light containing blue wavelengths, may have properties equivalent to those of Risk Group 2.

- Great care should be taken when directly viewing an LED that is driven at high current,

has multiple uses as a module or when focusing the light with optical instruments,

as these actions may greatly increase the hazard to your eyes.

- In addition, LED sources that were included within the scope of IEC 60825-1 /

Edition 1.2 “laser safety standard”, published 2001 were removed from the scope of

the IEC 60825-1 / Edition 2.0 revised 2007.

- However, keep in mind that some countries and regions have adopted standards based

on the IEC laser safety standard IEC 60825-1:2001 which includes LEDs within its scope.

7. Please contact CITIZEN ELECTRONICS' sales office if you have any questions regarding

the information contained in this document, or if you have any other inquiries.

CITIZEN ELECTRONICS CO.,LTD. JAPAN

DATA SHEET

Symbol

CITILED

Name CL-L270-2MU1L2-A1

12/ 12

Ref.CE-P1407 08/11