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1. Scope of Application
These specifications are applied to the chip type LED lamp, model CL-L340-MC41L1-C.
2. Part code
C L - L 3 4 0 - M C 4 1 L 1 - C
Series
L340 : White power LED for general lighting.
Special specifications
Watt class
C41 : 41 watt package.
Lighting color
L1 : Compliance with ANSI C78.377-2008,
3-Step MacAdam ellipse,
Correlated Color Temperature 3000K
Symbol
CITILED
Name CL-L340-MC41L1-C
CITIZEN ELECTRONICS CO.,LTD. JAPAN
DATA SHEET
Ref.CE-P1117 05/11
2/11
3. Outline drawing
4. Performance
( 1 ) Absolute Maximum Rating
Symbol Unit
Power Dissipation P
D
W
Forward Current I
F
mA
Forward Pulse Current I
FP
mA *1
Reverse Current I
R
mA
Operating Temperature T
OP
C
Storage Temperature T
ST
C
Junction Temperature Tj
Max
C*2
*1 Forward Current : Duty<=1/10 , Pulse Width<=10msec
*2 D.C. Current : Tj = Tc + Rj-c × P
D
Pulse Current : Tj = Tc + Rj-c × Pw(Power Dissipation / One-Pulse) × Duty
Symbol
CITILED
Name CL-L340-MC41L1-C
CITIZEN ELECTRONICS CO.,LTD. JAPAN
1,875
DATA SHEET
-40 +100
150
1
Rating Value
101.1
1,800
Parameter
-30 +85
Color L1 : 3000K
Watt 41: 41W
Ra M : typ.83
Marking 1 : Serial No.
Marking 2 : M 41 L1 C
Cathode
Anode Tc Measurement Point
Marking
It has a protection device built in as a
protection circuit against static electricity.
Unit : mm
Tolerances unless otherwise specified : ±0.3
Resin
Protection device
Cathode
Anode
x 15
x 15
x 15
x 15
x 15
x 15
x 15
x 15
x 15
x 15
x 15
x 15
x 15
x 15
x 15
Ref.CE-P1117 05/11
3/11
( 2 ) Electro-optical Characteristics
( Tc=25 C )
Symbol
Condition
Min. Typ. Max. Unit
V
F
IF=900mA
43.5 46.5 52.5 V *1
Φv
IF=900mA
2600 3060 - lm *1
Ra
IF=900mA
80 83 - - *1
Rj-c
Junction-case
- 1.0 - C/W
(*1 Measured after driving for 20ms )
Chromaticity coordinates ( Condition : I
F
=900mA, Tc=25 C )
Note: The tolerance of measurement at our tester is V
F
+/-3%, Φv+/-10%, Chromaticity(x,y)+/-0.005
and Ra+/-1.
Symbol
CL-L340-MC41L1-C
CITIZEN ELECTRONICS CO.,LTD. JAPAN
General Color
Rendering Index
Thermal Resistance
Parameter
Forward Voltage
DATA SHEET
CITILED
Name
Luminous Flux
Reference (ANSI C78.377)
x y x y
0.4338 0.4030 Center 0.4338 0.4030 (3045K)
a 0.4562 0.4260
a 0.00834 b 0.4299 0.4165
b 0.00408 c 0.4147 0.3814
θ° 53.17 d 0.4373 0.3893
*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)
L1
Color rank
Color rank
L1
Center
Oval parameter
x-y chart-CIE1931
0.38
0.39
0.40
0.41
0.42
0.43
0.41 0.42 0.43 0.44 0.45 0.46
x
y
Color region
Color region
(ANSI)
B.B. Locus
2800K
3400K 3200K 3000K
Ref.CE-P1117 05/11
4/11
5. Characteristics
Forward Current vs. Forward Voltage
Forward Current vs. Relative Luminous Flux
Forward Current vs. Chromaticity Coordinate
Case Temperature vs. Chromaticity Coordinate
Symbol
CITILED
Name CL-L340-MC41L1-C
CITIZEN ELECTRONICS CO.,LTD. JAPAN
DATA SHEET
0%
20%
40%
60%
80%
100%
120%
140%
160%
0 250 500 750 1000 1250 1500 1750 2000
I
F
[mA]
Relative Luminous Flux [a.u.]
40.0
42.0
44.0
46.0
48.0
50.0
52.0
0 250 500 750 1000 1250 1500 1750 2000
I
F
[mA]
VF [V]
I
F
=900mA
Tc=25C Tc=25C
Tc=25C
-0.020
-0.015
-0.010
-0.005
0.000
0.005
0.010
0.015
0.020
0 250 500 750 1000 1250 1500 1750 2000
I
F
[mA]
∆x, ∆y
Λ
Λ
-0.020
-0.015
-0.010
-0.005
0.000
0.005
0.010
0.015
0.020
0 25 50 75 100 125 150
Tc [C]
∆x, ∆y
∆x
∆y
Ref.CE-P1117 05/11
5/11
Case Temperature vs. Forward Voltage
Case Temperature vs. Relative Luminous Flux
Spectrum
Symbol
Name CL-L340-MC41L1-C
CITIZEN ELECTRONICS CO.,LTD. JAPAN
Case Temperature vs. Allowable Forward Current
CITILED
DATA SHEET
40.0
42.0
44.0
46.0
48.0
0 25 50 75 100 125 150
Tc [C]
[V]
0%
20%
40%
60%
80%
100%
120%
0 25 50 75 100 125 150
Tc [C]
Relative Luminous Flux [a.u.]
0%
20%
40%
60%
80%
100%
120%
350 450 550 650 750 850
λ [nm]
Relative Emission Intensity [a.u.]
0
200
400
600
800
1000
1200
1400
1600
1800
2000
0 25 50 75 100 125 150
Tc [C]
I
F
[mA]
I
F
=900mA I
F
=900mA
Tc=25C, I
F
=900mA
Ref.CE-P1117 05/11
6/11
6. Reliability
(1) Details of the tests
(2) Judgment Criteria of Failure for Reliability Test (Ta=25 C)
Symbol
V
F
Φv
U defines the upper limit of the specified characteristics. S defines the initial value.
CL-L340-C41N-C reliability test results will be used for CL-L340-MC41L1-C .
Symbol
CITILED
Name CL-L340-MC41L1-C
CITIZEN ELECTRONICS CO.,LTD. JAPAN
Judgment Criteria for Failure
Ta=50 C,I
F
=900 mA× 1000 hours(with Al-fin)
Measuring Item
Measuring Condition
I
F
=900mA
Forward Voltage
60 C, 90 %RH for 1000 hours
Thermal Shock Test -40 C × 30 minutes – 100 C × 30 minutes, 100 cycle
Ta=25 C,I
F
=900 mA× 1000 hours(with Al-fin)
100 C × 1000 hours
Continuous Operation Test
-40 C × 1000 hours
Test Condition
DATA SHEET
Test Item
Moisture-proof Test
< S × 0.85
Low Temperature Storage Test
High Temperature Storage Test
Note: Measurement shall be taken between 2 hours and 24 hours, and the test pieces should be
returned to the normal ambient conditions after the completion of each test.
> U × 1.1
Total Luminous Flux
I
F
=900mA
Ref.CE-P1117 05/11
7/11
7. Packing Specifications
(1) Packing
An empty tray is placed on top of a five-tier tray which contain 30 pieces each. The set of six
trays is banded together with two rubber bands.
(Smallest packing unit: 150 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-L340-MC41L1-C
CITIZEN ELECTRONICS CO.,LTD. JAPAN
< Packing figure >
Product 30 pcs / tray
310
210
14.6
< Example of indication label >
1. TYPE e.g. CL-L340-MC41L1-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. 150 pieces
CUSTOMER
PASS
CITIZEN ELECTRONICS
TYPE
P.NO
LOT No
Q'ty
CL-L340-MC41L1-C
xxx
03D001
150 pcs.
---(1)
---(2)
---(3)
---(4)
Ref.CE-P1117 05/11
8/11
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
CL-L340-MC41L1-C
CITIZEN ELECTRONICS CO.,LTD. JAPAN
As the connection status could vary depending on materials of outer heat sink,
DATA SHEET
CITILED
Name
Resin portion (Shaded area)
Recommended installation screw pitch
Thermal conduction materials
(Insulation)
Outer heart sink
Spring Washer (φ6mm)
M3screw (Insulation)
Plane washer (φ6mm)
22.0mm
22.0 mm
Ref.CE-P1117 05/11
9/11
8. Precautions (continued)
Symbol
- Soldering shall be implemented using a soldering bit of 40W or less with a temperature
CITILED
Name CL-L340-MC41L1-C
CITIZEN ELECTRONICS CO.,LTD. JAPAN
(Recommended condition in a case of lead-free solder condition)
- No external force shall be applied to resin part during soldering.
- For soldering correction
- Please design a circuit that prevents any reverse voltage (excess current) from being
- A constant current circuit is recommended as a drive circuit.
And when two or more LED packages are connected, the series connection
between each package is recommended.
When a minimum current is applied, LED dice may look different in their brightness due to
in assembled status.
the individual difference of the LED element, and it is not a failed product.
DATA SHEET
A minimum current value of lighting of all dice is 75mA.
8. Please be aware that this product should not come into contact with any other parts
- Next process of soldering should be carried out after the product has returned to ambient
9. Drive circuit
- As this product is designed with consideration of the heat release property of module,
a heat release design is required to use this product efficiently.
11. Recommended soldering condition (This product is not adaptable to reflow process)
350°C or less within 3.5 seconds for one land.
7. Lighting at a low current
- Manual soldering
applied to this product instantaneously when the circuit is ON or OFF.
10. Heat generation
ambient temperature conditions or power dissipation. Thus, drive conditions should be
- Factors responsible for an increase in temperature include heat generation attributed to
Please ensure that heat generation is not in excess of the absolute maximum rating.
(Refer to 4-1 Performance)
taken into consideration, depending on ambient temperature (Ta).
- 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.
- Regarding soldering correction, above conditions shall be used.
Please use it after sufficient verification is carried out on your own risk if necessary.
Ref.CE-P1117 05/11
10/11
12. 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.
Symbol
CITIZEN ELECTRONICS CO.,LTD. JAPAN
CITILED
Name CL-L340-MC41L1-C
DATA SHEET
- This product complies with RoHS directives.
13. Other
Ref.CE-P1117 05/11
11/11
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
CL-L340-MC41L1-C
CITIZEN ELECTRONICS CO.,LTD. JAPAN
and conditions related to sale, use of product, or information, including warranties
or no infringement.
6. 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.
CITILED
Name
DATA SHEET
9. 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.
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
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
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,
or conditions of merchantability, fitness for a particular purpose, accuracy of information,
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
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.
Ref.CE-P1117 05/11