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| 1/11 1. scope of application this data sheet is applied to the chip type led lamp, model cl-l251-mc4ww1-c. 2. part code c l - l 2 5 1 - m c 4 w w 1 - c series l251 : white power led for general lighting. special specifications m : general color rendering index typ. 85 type. watt class c4 : 4 watt package. lighting color ww1 : compliance with ansi c78.377-2008, 3-step macadam ellipse, correlated color temperature 3500k symbol data sheet citiled name cl-l251-mc4ww1-c citizen electronics co.,ltd. japan ref.ce-p1164 05/11 r1(0711)
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 data sheet -40 +100 150 1 960 1,000 -30 +85 citiled name cl-l251-mc4ww1-c citizen electronics co.,ltd. japan parameter rating value 11.1 resin cathode (tc measurement point) cathode mark marking 2 marking 1 anode unit : mm tolerances unless otherwise specified : 0.3 protection device it has a protection device built in as a protection circuit against static electricity. anode cathode 8 8 8 color ww1 watt 4 : 4w ra m : typ.85 marking 1 : serial no. marking 2 : m 4 ww c ref.ce-p1164 05/11 r1(0711) 3/11 ( 2 ) electro-optical characteristics ( tc=25 c ) symbol condition min. typ. max. unit v f i f =480ma 8.75 9.3 10.5 v v i f =480ma 276 325 - lm ra i f =480ma - 85 - - rj-c junction-case - 6.0 - c/w chromaticity coordinates ( condition : i f =480ma, tc=25 c ) note: the tolerance of measurement at our tester is v f +/-3%, v+/-10%, chromaticity(x,y)+/-0.005 and ra+/-1. symbol parameter forward voltage citiled name cl-l251-mc4ww1-c data sheet thermal resistance luminous flux general color rendering index citizen electronics co.,ltd. japan reference (ansi c78.377) x y x y 0.4073 0.3917 center 0.4073 0.3917 (3465k) a 0.4299 0.4165 a 0.00951 b 0.3996 0.4015 b 0.00417 c 0.3889 0.3690 ? 52.97 d 0.4147 0.3814 *color region stay within macadam "3-step" ellipse from th e chromaticity center. *the chromaticity center refers to ansi c78.377:2008. please refer to ansi c78.377 for the chromaticity cen ter. * 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 e llipse. (ref. iec 60081:1997 annexd) ww1 color rank color rank ww1 center oval parameter x-y chart-cie1931 0.36 0.37 0.38 0.39 0.40 0.41 0.42 0.43 0.38 0.39 0.40 0.41 0.42 0.43 0.44 x y color region color region (ansi) b.b. locus 3300k 3900k 3500k 3100k 3700k ref.ce-p1164 05/11 r1(0711) 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-l251-mc4ww1-c data sheet 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 1000 i f [ma] ?x, ?y ?x ? 0% 20% 40% 60% 80% 100% 120% 140% 160% 180% 200% 0 200 400 600 800 1000 i f [ma] relative luminous flux [a.u.] 7.5 8.0 8.5 9.0 9.5 10.0 10.5 0 200 400 600 800 1000 i f [ma] vf [v] -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 ? i f =480ma tc=25c tc=25c tc=25c ref.ce-p1164 05/11 r1(0711) 5/11 ? case temperature vs. forward voltage ? case temperature vs. relative luminous flux ? spectrum symbol citiled name cl-l251-mc4ww1-c data sheet ? case temperature vs. allowable forward current citizen electronics co.,ltd. japan 8.0 8.5 9.0 9.5 10.0 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 [nm] relative emission intensity [a.u.] 0 200 400 600 800 1000 1200 0 25 50 75 100 125 150 tc [c] i f [ma] i f =480ma i f =480ma tc=25c, i f =480ma ref.ce-p1164 05/11 r1(0711) 6/11 6. reliability (1) details of the tests (2) judgment criteria of failure for reliability test (ta=25 c) symbol v f v u defines the upper limit of the specified characteristics. s defines the initial value. cl-l251-mc4l reliability test results will be used for cl-l251-mc4ww1-c. symbol high temperature storage test -40 c 30 minutes C 100 c 30 minutes, 100 cycle ta=25 c,i f =480 ma 1000 hours(with al-fin) 100 c 1000 hours continuous operation test ta=50 c,i f =480 ma 1000 hours(with al-fin) measuring item measuring condition total luminous flux i f =480ma moisture-proof test < s 0.85 test item low temperature storage test -40 c 1000 hours data sheet thermal shock test judgment criteria for failure citizen electronics co.,ltd. japan forward voltage citiled name cl-l251-mc4ww1-c test condition 60 c, 90 %rh for 1000 hours returned to the normal ambient conditions after the completion of each test. > u 1.1 note: measurement shall be taken between 2 hours and 24 hours, and the test pieces should be i f =480ma ref.ce-p1164 05/11 r1(0711) 7/11 7. packing specifications (1) packing an empty tray is placed on top of a five-tier tray which contain 48 pieces each. the set of six trays is banded together with two rubber bands. (smallest packing unit: 240 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-l251-mc4ww1-c citizen electronics co.,ltd. japan < packing figure > product 50pcs/tray 310 210 14.6 product 48pcs/tray < example of indication label > 1. type e.g. cl-l251-mc4ww1-c 2. p.no. (cutomer's p/n) e.g. x xx 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. 240 pieces customer pass citizen electronics type p.no lot no q'ty cl-l251-mc4ww1-c xxx 03d001 240 pcs. ---(1) ---(2) ---(3) ---(4) ref.ce-p1164 05/11 r1(0711) 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. 9/11 8. precautions (continued) symbol a minimum current value of lighting of all dice is 40ma. 10. heat generation 8. please be aware that this product should not come into contact with any other parts 9. drive circuit between each package is recommended. - a constant current circuit is recommended as a drive circuit. - please design a circuit that prevents any reverse voltage (excess current) from being applied to this product instantaneously when the circuit is on or off. and when two or more led packages are connected, the series connection - 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. 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) - no external force shall be applied to resin part during soldering. taken into consideration, depending on ambient temperature (ta). 11. recommended soldering condition (this product is not adaptable to reflow process) when a minimum current is applied, led dice may look different in their brightness due to in assembled status. data sheet 7. lighting at a low current please use it after sufficient verification is carried out on your own risk if necessary. - manual soldering - regarding soldering correction, above conditions shall be used. (recommended condition in a case of lead-free solder condition) - soldering shall be implemented using a soldering bit of 40w or less with a temperature 350c or less within 3.5 seconds for one land. - next process of soldering should be carried out after the product has returned to ambient - for soldering correction - 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. the individual difference of the led element, and it is not a failed product. citizen electronics co.,ltd. japan citiled name cl-l251-mc4ww1-c ref.ce-p1164 05/11 r1(0711) 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 - this product complies with rohs directives. citiled name cl-l251-mc4ww1-c 13. other data sheet citizen electronics co.,ltd. japan ref.ce-p1164 05/11 r1(0711) 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 citizen electronics assumes no liability for customers' product design or applications. 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. 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, 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 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 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, data sheet 9. precautions with regard to product use citiled name cl-l251-mc4ww1-c 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. 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. 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, ref.ce-p1164 05/11 r1(0711) |
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