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and are trademarks or registered trademarks of CITIZEN HOLDINGS CO., LTD. JAPAN.

is a trademark or a registered trademark of CITIZEN ELECTRONICS CO., LTD. JAPAN.

DATA SHEET

CL-L234A-C18N1-C

Ref.CE-P2139 05/12

1/10

1. Scope of Application

This data sheet is applied to the chip type LED lamp , model CL-L234A-C18N1-C

2. Part code

C L - L 2 3 4 A - C 1 8 N 1 - C

Series

L234 : White power LED for general lighting.

Watt class

C18 : 18 watt package.

Lighting color

N1 : Compliance with ANSI C78.377-2008,

Correlated Color Temperature 5000K.

Symbol

Name

DATA SHEET

CITILED

CL-L234A-C18N1-C

CITIZEN ELECTRONICS CO.,LTD. JAPAN

Ref.CE-P2139 06/12

2/10

3. Outline drawing

4. Performance

( 1 ) Absolute Maximum Rating

Symbol Unit

Power Dissipation PDW

Forward Current IFmA

Forward Pulse Current IFP mA *1

Reverse Current IRmA

Operating Temperature TOP C

Storage Temperature TST C

Junction Temperature Tj Max C*2

*1 Forward Current : Duty<=1/10 , Pulse Width<=10msec

*2 D.C. Current : Tj = Tc + Rj-c × PD

Pulse Current : Tj = Tc + Rj-c × Pw(Power Dissipation / One-Pulse) × Duty

Symbol

CITIZEN ELECTRONICS CO.,LTD. JAPAN

29.4

720

Name CL-L234A-C18N1-C

CITILED

750

-30 ~ +85

150

-40 ~ +100

DATA SHEET

Parameter Rating Value

It has a protection device built in as a

protection circuit against static electricity.

Unit : mm

Tolerances unless otherwise specified : ±0.3

Marking1

Marking2

8.9

6.95

(Tc Measurement Point) Protection device

Anode Cathode

×6

Marking1 : Serial No.

Marking2 : E N1 C

Color：N1

e.g. Ra：Typ65

Ref.CE-P2139 06/12

3/10

( 2 ) Electro-optical Characteristics

( Tc=25 C )

Symbol Condition Min. Typ. Max. Unit

VFIF=480mA 35.8 38.2 43.2 V

Φv IF=480mA 1504 1769 - lm

Ra IF=480mA 60 65 - -

Rj-c Junction-case - 2.4 - C/W

Chromaticity coordinates ( Condition : IF=480mA ,Tc=25 C )

Note: The tolerance of measurement at our tester is VF±3% , Φv±10% , Chromaticity(x,y)±0.005.

Symbol

General Color

Rendering Index

Name CL-L234A-C18N1-C

CITIZEN ELECTRONICS CO.,LTD. JAPAN

CITILED

DATA SHEET

Thermal Resistance

Parameter

Forward Voltage

Luminous Flux

x y

Center

0.3447 0.3553 (5028K)

a 0.3551 0.3760

b 0.3376 0.3616

c 0.3366 0.3369

d 0.3515 0.3487

0.3551 0.376

Color rank

x-y chart-CIE1931

0.33

0.34

0.35

0.36

0.37

0.38

0.32 0.33 0.34 0.35 0.36 0.37

Color region

4800K

5400K 5000K 4600K

5200K

Ref.CE-P2139 06/12

4/10

5. Characteristics

・

Forward Current vs. Forward Voltage

・

Forward Current vs. Relative Luminous Flux

・

Forward Current vs. Chromaticity Coordinate

・

Case Temperature vs. Chromaticity Coordinate

Symbol

DATA SHEET

CITILED

Name CL-L234A-C18N1-C

CITIZEN ELECTRONICS CO.,LTD. JAPAN

-0.020

-0.015

-0.010

-0.005

0.000

0.005

0.010

0.015

0.020

0 200 400 600 800

IF [mA]

Δx, Δy

Δx

Δy

20%

40%

60%

80%

100%

120%

140%

0 100 200 300 400 500 600 700

IF [mA]

Relative Luminous Flux [a.u.]

32.0

34.0

36.0

38.0

40.0

42.0

0 100 200 300 400 500 600 700

IF [mA]

[V]

-0.020

-0.015

-0.010

-0.005

0.000

0.005

0.010

0.015

0.020

0 20 40 60 80 100

Tc [C]

Δx, Δy

Δx

Δy

IF=480mA

Tc=25C

Tc=25C Tc=25C

Ref.CE-P2139 06/12

5/10

・

Case Temperature vs. Forward Voltage

・

Case Temperature vs. Relative Luminous Flux

・

Spectrum

Symbol

DATA SHEET

CITILED

Name CL-L234A-C18N1-C

CITIZEN ELECTRONICS CO.,LTD. JAPAN

・

Case Temperature vs. Allowable Forward Current

32.0

34.0

36.0

38.0

40.0

0 20 40 60 80 100

Tc [C]

Ｖ

Ｆ

[V]

20%

40%

60%

80%

100%

120%

0 20 40 60 80 100

Tc [C]

Relative Luminous Flux [a.u.]

20%

40%

60%

80%

100%

120%

350 450 550 650 750 850

λ [nm]

Relative Emission Intensity [a.u.]

100

200

300

400

500

600

700

0 25 50 75 100 125 150

Tc [C]

[mA]

IF=480mA IF=480mA

Tc=25C,IF=480mA

Ref.CE-P2139 06/12

6/10

6. Reliability

(1) Details of the tests

(2) Judgment Criteria of Failure for Reliability Test (Ta=25 C)

Symbol

Φv

U defines the upper limit of the specified characteristics. S defines the initial value.

CL-L221-C14L1 reliability test results will be used for CL-L234A-C18N1-C.

Symbol

-40 C × 30 minutes – 100 C × 30 minutes, 100 cycle

> U × 1.1

< S × 0.85

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

Total Luminous Flux

DATA SHEET

Moisture-proof Test 60 C, 90 %RH for 1000 hours

CITIZEN ELECTRONICS CO.,LTD. JAPAN

Measuring Item

Forward Voltage

Judgment Criteria for Failure

IF=480mA

Measuring Condition

IF=480mA

Ta=25 C, IF=480 mA× 1000 hours(with Al-fin)

Ta=80 C, Tj≒120 C, IF=480 mA× 1000 hours(with Al-fin)

Continuous Operation Test

Test Item Test Condition

CITILED

Name CL-L234A-C18N1-C

Note: Measurement shall be taken between 2 hours and 24 hours, and the test pieces should be

-40 C × 1000 hours

High Temperature Storage Test 100 C × 1000 hours

Thermal Shock Test

Low Temperature Storage Test

Ref.CE-P2139 06/12

7/10

7. Packing Specifications

(1) Packing

An empty tray is placed on top of a five-tier tray which contain 40 pieces each. The set of six

trays is banded together with two rubber bands.

(Smallest packing unit: 200 pieces)

A label with product name, quantity, lot number is placed on the upper empty tray.

Tray (Dimensions: 310 × 210 × 14.6mm / Materials: Electrically conductive PS)

Symbol

DATA SHEET

CITILED

Name CL-L234A-C18N1-C

CITIZEN ELECTRONICS CO.,LTD. JAPAN

< Packing figure >

Product 40pcs/tray

310

210

14.6

1. TYPE e.g. CL-L234A-C18N1-C

2. P.No. (Cutomer's P/N) e.g. xxx

3. Lot No. e.g. 03D001

- First letter: Last digit of the year e.g. 0 : year 2010

- Second letter: Production month e.g. 3 : Mar

Note: October, November and December are designated

by X, Y and Z, respectively.

- Third letter: CE's control number e.g. D001

4. Quantity e.g. 200 pieces

< Example of indication label >

CUSTOMER

PASS

CITIZEN ELECTRONICS

TYPE

P.NO

LOT No

Q'ty

CL-L234A-C18N1-C

xxx

03D001

200 pcs.

---(1)

---(2)

---(3)

---(4)

Ref.CE-P2139 06/12

8/10

8. Precautions

1. Avoid the application of any stress to the resin portion.

2. Avoid any contact by a sharp metal nail or other materials with the resin portion.

3. This product should be secured firmly by fastening an M3 screw on both sides of the product.

Please be careful not to apply any stress to the product during the clamping operation.

please check thoroughly.

4. Insulation between the terminal section and the heat sink section of the LED is not covered

by warranty. With regard to insulation after this product has been assembled in an apparatus,

preventive action should be carried out by the customer.

5. For fixing this product to the outer heat sink, heat grease should be applied to the whole rear

surface so that the product can dissipate heat as a whole. Please pay attention to avoid product

deformation when conducting the clamping operation with heat grease in sheet form.

6. Handling of static electricity

- These products are sensitive to static electricity charge.

Please take measures to prevent any static electricity being produced such as the wearing of a

wristband or anti-static gloves when handling this product.

- All devices, equipment and machinery must be properly grounded. It is recommended that precautions

be taken against surge voltage to the equipment that mounts the LEDs.

- ESD sensitivity of this product is 1000V (HBM, based on JEITA ED-4701/304).

- When inspecting the final products in which LEDs were assembled, it is recommended to check

whether the assembled LEDs are damaged by static electricity or not.

- It is easy to find static-damaged LEDs by a light-on test.

Symbol

DATA SHEET

As the connection status could vary depending on materials of outer heat sink,

CITILED

Name CL-L234A-C18N1-C

CITIZEN ELECTRONICS CO.,LTD. JAPAN

Recommended installation screw pitch

Thermal conduction materials

(Insulation)

Outer heart sink

Spring Washer (

≦

φ6mm)

M3screw (Insulation)

Plane washer (

≦

φ6mm)

19.5mm

11.0mm

Resin portion (Shaded area)

Ref.CE-P2139 06/12

9/10

8. Precautions (continued)

Symbol

DATA SHEET

applied to this product instantaneously when the circuit is ON or OFF.

10. Heat generation

11. Recommended soldering condition (This product is not adaptable to reflow process)

- As this product is designed with consideration of the heat release property of module,

12. Other

- This product complies with RoHS directives.

- Contacts number of soldering bit should be within twice for each terminal as a correction.

* Citizen Electronics cannot guarantee if usage exceeds this recommended conditions.

Please use it after sufficient verification is carried out on your own risk if necessary.

Please ensure that heat generation is not in excess of the absolute maximum rating.

(Refer to 4-1 Performance)

- Next process of soldering should be carried out after the product has returned to ambient

ambient temperature conditions or power dissipation. Thus, drive conditions should be

- Manual soldering

- Soldering shall be implemented using a soldering bit of 40W or less with a temperature

- Factors responsible for an increase in temperature include heat generation attributed to

350°C or less within 3.5 seconds for one land.

taken into consideration, depending on ambient temperature (Ta).

in assembled status.

9. Drive circuit

a heat release design is required to use this product efficiently.

between each package is recommended.

- Please design a circuit that prevents any reverse voltage (excess current) from being

(Recommended condition in a case of lead-free solder condition)

7. Lighting at a low current

A minimum current value of lighting of all dice is 30mA.

When a minimal current is applied, LED dice may look different in their brightness due to

the individual difference of the LED element, and it is not a failed product.

CITILED

Name CL-L234A-C18N1-C

8. Please be aware that this product should not come into contact with any other parts

- No external force shall be applied to resin part during soldering.

- For soldering correction

- Regarding soldering correction, above conditions shall be used.

- A constant current circuit is recommended as a drive circuit.

And when two or more LED packages are connected, the series connection

CITIZEN ELECTRONICS CO.,LTD. JAPAN

Ref.CE-P2139 06/12

10/10

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

included in this document,

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

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

Symbol

DATA SHEET

9. Precautions with regard to product use

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.

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

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.

1. This document is provided for reference purposes only so that 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,

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

is current as of the date this document is issued.

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

4. Absent

ａ

written signed agreement, except as provided in the relevant terms and conditions of

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

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

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

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

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

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.

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

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

or no infringement.

CITIZEN ELECTRONICS CO.,LTD. JAPAN

CITILED

Name CL-L234A-C18N1-C

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

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

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

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

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

Ref.CE-P2139 06/12