1. Scope of Application
These specifications apply to chip type LED lamp, model CL-L270-U1N-A-T.
2. Part code
Series
L270 : White LED for general lighting.
Quantity of dies
No Sign: 1Die
Watt class
U1 : Under 1 watt package.
Lighting color
N : Correlated Color Temperature 5000(K)
Shipping mode
Non-coded : Bulk
T : Taping (standard)
T-
DATA SHEET
1 / 12
C L - 7 A
CITIZEN ELECTRONICS CO.,LTD. JAPAN
L 2 N -0 - 1U
Symbol
CITILED
Name CL-L270-U1N-A
Ref.CE-P1403 08/11
3. Outline drawing
Unit: mm
Tolerance: ±0.1
4. Performance
(1) Absolute Maximum Rating
*1
*2
*1 Forward Current : Duty ≦ 1/10, Pulse width ≦ 10 msec
*2 D.C. Current : T
= Ts + R
j-s
× P
D
Pulse Current : T
= Ts + R
j-s
× P
W
(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-U1N-A
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
PASS
CITIZEN ELECTRONICS
Parameter
Power Dissipation
Forward Current
Rating Value
0.28
80
Symbol
P
D
I
F
Forward Pulse Current
Reverse Current
I
FP
1
-30 ~ +85
-40 ~ +100
Junction Temperature
I
R
T
op
T
st
T
jMax.
Operating Temperature
Storage Temperature
120
Unit
W
mA
mA
mA
C
C
C
100
Max.
Unit
Min.
Symbol
Condition
3.12.8
Parameter
-
Forward Voltage
V
F
I
F
=60mA
Luminous Flux
63
Ra
2 / 12
I
F
=60mA
φ
V
General Color Rendering Index
3.4
-
Typ.
DATA SHEET
junction-solder
Rj-s
I
F
=60mA
Thermal resistance
V
-
-
lm
C/W
CITIZEN ELECTRONICS CO.,LTD. JAPAN
Symbol
CITILED
Name CL-L270-U1N-A
68
15.0
95
20.1 25.2
polarity
Ref.CE-P1403 08/11
Chromaticity coordinates (Condition : IF=60mA , Ts=25C)
Ranking(Condition:IF=60mA, Ts=25C)
Note 1) The tolerance of forward voltage(V
F
) measurement is V
F
±3% at our tester
Note 2) The tolerance of luminous Intensity(I
V
) 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.
3
0.3470
0.3470
0.3480
0.3870
0.3730
Rank
0.000
0.000
0.4020
Color Rank
1
0.3310
0.3730
y
0.3580
2
0.3640
0.3880
0.3670
0.3310
x
0.3480
0.3870
0.3730
Forward Voltage
0.3640
0.3880
0.3310
0.3380
0.3310
0.3580
0.3450
0.3510
0.3470
17.9
V
R
Parameter
Symbol
3.0 3.2
S 3.2 3.4
φV
B 15.0
V
F
Q 2.8
4
lm
C 17.9 22.3
D
22.3
25.2
3.0
Luminous Flux
0.3430
0.3310
0.3470
0.3730
Min.
Max.
0.3310
0.3410
0.3730
Unit
0.3570
0.3450
0.3510
3 / 12
0.3430
0.3450
0.3600
0.3630
0.3310
0.3220
DATA SHEET
0.3510
0.3600
0.3630
6
5
0.3310
0.3380
0.3450
0.3510
CITIZEN ELECTRONICS CO.,LTD. JAPAN
Symbol
CITILED
Name CL-L270-U1N-A
0.300
0.320
0.340
0.360
0.380
0.400
0.420
0.320 0.330 0.340 0.350 0.360 0.370
x
y
1
2
3
4
5
6
x-y chart-CIE 1931
Ref.CE-P1403 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
<Condition>
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-U1N-A
4 / 12
0%
25%
50%
75%
100%
125%
150%
0 20 40 60 80 100
I
F
[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
I
F
[mA]
V
F
[V]
Ts=25C
0%
20%
40%
60%
80%
100%
120%
0 20 40 60 80 100 120
Ts [C]
Relative Luminous Intensity
[a.u.]
I
F
=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
F
[V]
I
F
=60mA
0
20
40
60
80
100
0 20 40 60 80 100 120
Ts [C]
I
F
[mA]
93
Ref.CE-P1403 08/11
5. Characteristic (2)
・Forward Current vs. Chromaticity Coordinate ・Solder Temperature vs. Chromaticity Coordinate
Directive Characteristic
CITIZEN ELECTRONICS CO.,LTD. JAPAN
DATA SHEET
Symbol
CITILED
Name CL-L270-U1N-A
5 / 12
-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
I
F
[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
I
F
=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-P1403 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
V
F
I
F
=60mA
pieces to the normal ambient conditions after the completion of each test.
I
V
I
F
=60mA
< S×0.7
Luminous Intensity
> U×1.2
Life Test in Continuous Operation
Forward Voltage
Low Temperature Storage Test Ta=-40 C × 1000 hours
Ta=-40 C × 30 minutes and Ta=100 C × 30 minutes,
100cycle
Ta=100 C × 1000 hours
Ta=60 C, 90 %RH for 1000 hours
High Temperature Storage Test
Measuring Conditon
DATA SHEET
Solder Heat Resistance Test
Recommended temperature profile (reflow soldering)× 2,
(2nd test must be started after the samples are
stabilized thermally.)
6 / 12
Test Item
Test Condition
Thermal Shock Test
Judgement Criteria for Failure
Measuring Item
Ta=25 C, IF=60 mA ×1000 hours
Moisture-proof Test
CITIZEN ELECTRONICS CO.,LTD. JAPAN
Symbol
CITILED
Name CL-L270-U1N-A
Ref.CE-P1403 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
DATA SHEET
7 / 12
CL-L270-U1N-A
CITIZEN ELECTRONICS CO.,LTD. JAPAN
Symbol
CITILED
Name
6 0
+ 1
0
9
±0.3
11.4
±1.0
21
±0.8
Name.
Qty
Lot No.
13
±0.5
2
±0.5
1 8 0
0
-
3
(END) (START)
Unloaded tape
Mounted with CITILEDmore than 40mm Leading part more than 400mm
Ref.CE-P1403 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)
CITIZEN ELECTRONICS CO.,LTD. JAPAN
DATA SHEET
Symbol
CITILED
Name CL-L270-U1N-A
8 / 12
Aluminum envelop
Desiccant
Label
Reel
Polyester Zip fastener
Ref.CE-P1403 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.
CITIZEN ELECTRONICS CO.,LTD. JAPAN
DATA SHEET
Symbol
CITILED
Name CL-L270-U1N-A
9 / 12
140sec
160
~
180
°C
4
°C
/sec. Max
T e m p e ra tu r e
Time
4
°C
/sec. Max 260
°C
Max
220
°C
60
~
70sec
3
sec
. Max
Ref.CE-P1403 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
<For reflow soldering>
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.
CITIZEN ELECTRONICS CO.,LTD. JAPAN
DATA SHEET
Symbol
CITILED
Name CL-L270-U1N-A
10 / 12
R
R R
R R R R
Ref.CE-P1403 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.
CITIZEN ELECTRONICS CO.,LTD. JAPAN
DATA SHEET
Symbol
CITILED
Name CL-L270-U1N-A
11 / 12
Ref.CE-P1403 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-U1N-A
12 / 12
Ref.CE-P1403 08/11