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1/11 1. scope of application these specifications are applied to the chip type led lamp , model CL-L234-MC18N1-C1 2. part code c l - l 2 3 4 - m c 18 n 1 - c 1 series l234 : white power led for general lighting. special specifications m : general color rendering index typ. 85 type. watt class c18 : 18 watt package. lighting color n1 : compliance with ansi c78.377-2008, 3-step macadam ellipse, correlated color temperature 5000k. symbol citiled data sheet name cl-l234a-mc18n1-c1 citizen electronics co.,ltd. japan ref.ce-p1370 07/11
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 data sheet parameter rating value 29.4720 citiled 750 -30 ~ +85 150 -40 ~ +100 1 name cl-l234a-mc18n1-c1 citizen electronics co.,ltd. japan ref.ce-p1370 07/11
3/11 ( 2 ) electro-optical characteristics ( tc=25 c ) symbol condition min. typ. max. unit v f i f =480ma 35.8 38.2 43.2 v v i f =480ma 1173 1380 - lm ra i f =480ma 80 85 - - rj-c junction-case - 2.4 - c/w chromaticity coordinates ( condition : i f =480ma ,tc=25 c ) note: the tolerance of measurement at our tester is v f 3% , v10% , chromaticity(x,y)0.005. symbol name cl-l234a-mc18n1-c1 citizen electronics co.,ltd. japan luminous flux general color rendering index citiled data sheet thermal resistance parameter forward voltage ref.ce-p1370 07/11
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 data sheet citiled name cl-l234a-mc18n1-c1 citizen electronics co.,ltd. japan -0.020 -0.015 -0.010 -0.005 0.000 0.005 0.010 0.015 0.020 0 100 200 300 400 500 600 700 800 i f [ma] ?x, ?y ?x ?y 0% 20% 40% 60% 80% 100% 120% 140% 0 100 200 300 400 500 600 700 800 i f [ma] relative luminous flux [a.u.] 32.0 33.0 34.0 35.0 36.0 37.0 38.0 39.0 40.0 41.0 42.0 0 100 200 300 400 500 600 700 800 i f [ma] v f [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] ?x, ?y ?x ?y i f =480ma tc=25c tc=25c tc=25c ref.ce-p1370 07/11
5/11 ? case temperature vs. forward voltage ? case temperature vs. relative luminous flux ? spectrum symbol ? case temperature vs. allowable forward current data sheet citiled name cl-l234a-mc18n1-c1 citizen electronics co.,ltd. japan 32.0 34.0 36.0 38.0 40.0 0 20 40 60 80 100 tc [c] [v] 0% 20% 40% 60% 80% 100% 120% 0 20 40 60 80 100 tc [c] relative luminous flux [a.u.] 0.0 0.2 0.4 0.6 0.8 1.0 1.2 350 450 550 650 750 [nm] relative emission intensity [a.u.] 0 100 200 300 400 500 600 700 0 25 50 75 100 125 150 tc [c] i f [ma] i f =480ma i f =480ma i f =480ma ref.ce-p1370 07/11
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-l221-c14l1 reliability test results will be used for cl-l234a-mc18n1-c1. symbol -40 c 30 minutes C 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 measuring item forward voltage i f =480ma measuring condition judgment criteria for failure data sheet moisture-proof test 60 c, 90 %rh for 1000 hours citizen electronics co.,ltd. japan continuous operation test low temperature storage test ta=25 c, i f =480 ma 1000 hours(with al-fin) ta=80 c, tj P 120 c, i f =480 ma 1000 hours(with al-fin) test item test condition citiled name cl-l234a-mc18n1-c1 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 i f =480ma ref.ce-p1370 07/11
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-mc18n1-c1 citizen electronics co.,ltd. japan < packing figure > product 48pcs/tray product 40pcs/tray 310 210 14.6 14.6 ref.ce-p1370 07/11
8/10 8. precautions 1. avoid the application of any stress to the lens portion. 2. avoid any contact by a sharp metal nail or other materials with the lens 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 judgmental criterion condition citizen electronics co.,ltd. japan citiled name cl-l234a-mc18n1-c1 as the connection status could vary depending on materials of outer heat sink, i f =8ma/pkg no-lighting in entire block making up parallel circuit is unacceptable l234 consists of three blocks. thermal conduction materials (insulation) outer heart sink spring washer ( Q 6mm) m3screw (insulation) plane washer ( Q 6mm) resin portion (shaded area) recommended installation screw pitch 19.5mm 11.0mm ref.ce-p1370 07/11
9/10 8. precautions (continued) symbol citiled name cl-l234a-mc18n1-c1 - 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 350c or less within 3.5 seconds for one land. taken into consideration, depending on ambient temperature (ta). 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 applied to this product instantaneously when the circuit is on or off. 10. heat generation - as this product is designed with consideration of the heat release property of module, 8. please be aware that this product should not come into contact with any other parts in assembled status. data sheet 7. lighting at a low current a minimum current value of lighting of all dice is 40ma. 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. - 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 (recommended condition in a case of lead-free solder condition) 11. recommended soldering condition citizen electronics co.,ltd. japan ref.ce-p1370 07/11
10/10 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 data sheet citizen electronics co.,ltd. japan citiled name cl-l234a-mc18n1-c1 13. other - this product complies with rohs directives. ref.ce-p1370 07/11
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 citiled name cl-l234a-mc18n1-c1 citizen electronics co.,ltd. japan 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. 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. 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. 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. 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, 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. 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. 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. 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 any other rights of citizen electronics or any third party with respect to the information data sheet 9. precautions with regard to product use 1. this document is provided for reference purposes only so that citizen electronics' ref.ce-p1370 07/11

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