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1 ref.ce-p3540 02/16 data sheet introduction performance characteristics mechanical dimensions characteristic curves reliability packing specification precaution p 2 p 3 p 5 p 6 p 9 p 10 p 11 citiled cob series standard type ra90 model clu038-1210c4
ref.ce-p3540 02/16 1. introduction 1-1. product description 1-2. features citizen electronics is the first cob manufacture. our advanced knowledge and packaging technology for many years has excellent reliability and high quality of our products. citiled cob series covers a wide range of luminous flux from a 10w incandescent bulb to a 500w mercury lamp in general lighting sources. the element arrangement of led package is capable of utilizing light more effectively and higher performance. the new version of citiled cob series succeed to reduce the thermal resistance significantly. new version creates more options to match luminaire's products design (ex. high performance , cost effective , higher lumen density , increased allowable max. if). the outline and les size is same since version 1. 3-step macadam ellipse color definition at tj=85 is available. 2 clu038 - 12 10 c4 - 27 3 h5 k2 [1] [2] [3] [4] [5] [1] [2] [3] [4] [5] product nomenclature cri (ra) clu038 12 10 2700k min.90 product shape die count in series die count in parallel nominal cct
ref.ce-p3540 02/16 2. performance characteristics 2-1. electro optical characteristics 2-2. absolute maximum ratings symbol rating pi 98.0 *1 if 2300 *1 ir 1 top -40 ~ +100 tst -40 ~ +100 tc 105 *2 tj 140 *3 absolute maximum ratings *1. input power and forward current are the values when the led is used within the range of the derating curve in this data sheet. *2. refer to 3. outline drawing for tc measurement point. parameter input power (w) forward current (ma) reverse current (ma) *3. d.c. current : tj = tc + rj-c pi storage temperature (c) case temperature (c) junction temperature (c) operating temperature (c) 3 ( tj=85c ) ra r9 tc=25c* min. min. min. typ. typ. typ. min. typ. max. clu038-1210c4-273h5k2 2700k 90 50 3,021 3,433 3,764 110 900 31.8 34.6 37.5 0.42 CLU038-1210C4-303H5K2 3000k 90 50 3,186 3,621 3,970 116 900 31.8 34.6 37.5 0.42 clu038-1210c4-353h5k2 3500k 90 50 3,247 3,690 4,046 118 900 31.8 34.6 37.5 0.42 clu038-1210c4-403h5k2 4000k 90 50 3,322 3,776 4,140 121 900 31.8 34.6 37.5 0.42 notes : 1. citizen electronics maintains forward voltage +/-3%, luminous flux +/-10%,ra and r9 +/-1. *values of luminous flux at tc=25c are provided as reference only. product code electro optical characteristics forward current ( ma ) thermal resistance rj-c ( c/w ) cri nominal cct luminous flux ( lm ) efficacy ( lm/w ) voltage ( v ) t =85c
ref.ce-p3540 02/16 2-3. chromaticity characteristics note : citizen electronics maintains chromaticity ( x, y ) +/-0.005 0.30 0.35 0.40 0.45 0.30 0.35 0.40 0.45 0.50 y x x-y chart cie1931 3,500k 3,000k 2,700k black body locus 4,000k 3-step 4 2700k ( 0.4577 , 0.4098 ) 3000k ( 0.4339 , 0.4032 ) 3500k ( 0.4078 , 0.3929 ) 4000k ( 0.3818 , 0.3796 ) ( rated current, tj=85c ) color region nominal cct center point ( x, y ) oval parameter major axis a minor axis b ellipse rotation angle 3-step macadam ellipse 0.00774 0.00411 57.28 0.00834 0.00408 53.17 0.00951 0.00417 52.97 0.00939 0.00402 54.00 * color region stay within macadam 3-step ellipse from the chromaticity center. * the chromaticity center refers to ansi c78.377:2011. please refer to ansi c78. 377 for the chromaticity center. * 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)
ref.ce-p3540 02/16 3. mechanical dimensions 5 marking 1 : serial no. marking 2 : cri cct dies count in parallel dies count in series h 12 10 ** ** ? internal circuit 12 s 10 p protection device led device cathode anode
ref.ce-p3540 02/16 forward current vs. forward voltage forward current vs. relative luminous flux tc=25c tc=25c case temperature vs. forward voltage case temperature vs. relative luminous flux if=900ma if=900ma 30.0 32.0 34.0 36.0 38.0 40.0 42.0 0 1000 2000 3000 v f [ v ] if [ma] 0% 50% 100% 150% 200% 250% 0 1000 2000 3000 r e l a t i v e l u m i n o u s f l u x [ a . u . ] if [ma] 33.0 34.0 35.0 36.0 37.0 0 25 50 75 100 v f [ v ] tc [c] 0% 20% 40% 60% 80% 100% 120% 0 25 50 75 100 r e l a t i v e l u m i n o u s f l u x [ a . u . ] tc [c] 4. characteristic curves 4-1. forward current characteristics / temperature characteristics 6
ref.ce-p3540 02/16 4-2. optical characteristics spectrum : cri(ra) 90min. tj=85 if=900ma 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 380 430 480 530 580 630 680 730 780 r a d i a t i v e i n t e n s i t y wave length [nm] 4000k 3500k 3000k 2700k 7
ref.ce-p3540 02/16 4-2. optical characteristics (continued) 4-3. derating characteristics case temperature vs. allowable forward current 0 500 1000 1500 2000 2500 0 25 50 75 100 125 i f [ m a ] tc [c] 8 radiation characteristic 0% 20% 40% 60% 80% 100% x y 80 70 60 50 40 30 20 10 -80 -70 -60 -50 -20 -30 -40 -10 90 -90
ref.ce-p3540 02/16 5. reliability 5-1. reliability test 5-2. failure criteria -40 c 30 minutes C 100 c 30 minutes, 100 cycle 85 c, 85 %rh for 500 hours thermal shock test continuous operation test high temperature storage test low temperature storage test moisture-proof test if=900ma tj=140c (with al-fin) 1000hrs test item 100 c 1000 hours -40 c 1000 hours test condition if=900ma ta=25c (with al-fin) 1000hrs 9 ( tc=25c ) u defines the upper limit of the specified characteristics. s defines the initial value. note : measurement shall be taken between 2 hours and 24 hours, and the test pieces should be return to the normal ambient conditions after the completion of each test. total luminous flux v if=900ma u 1.1
ref.ce-p3540 02/16 1 5 5 5 0 0 1 (2)(1) (3) example of indication label 1. type e.g. clu038-1210c4 2. p.no. ( cutomer's p/n ) 3. lot no. e.g. 4. quantity (1) last two digit of the year 15 : year 2015 (2) production month 5 : may note: october, november and december are designated x,y and z. (3) ce's control number 6. packing specification 6-1. packing 10 an empty tray is placed on top of a 6-tier tray which contain 48 pieces each. (smallest packing unit: 288 pieces) a label with product name, quantity and lot number is placed on the upper empty tray. tray (dimensions: 31021012 mm / materials: electrically conductive ps) customer type p.no lot no q'ty : clu***-******-******* : ****** : ******* : *** --- ( 1 ) --- ( 2 ) --- ( 3 ) --- ( 4 )
ref.ce-p3540 02/16 7. precaution 7-1. handling with care for this product -both the light emitting area and white rim around the light emitting area is composed of resin materials. please avoid the resin area from being pressed, stressed, rubbed, come into contact with sharp metal nail (e.g. edge of reflector part) because the function, performance and reliability of this product are negatively impacted. -please be aware that this product should not come into contact with any other parts while incorporating in your lighting apparatus or your other products. - please be aware that careful handling is required after the attachment of lead wires to prevent the application of any load to the connections. -for more information, please refer to application note "instruction manual(cob led package)". 7-2. countermeasure against static electricity -handling of this product needs countermeasures against static electricity because this is a semiconductor product. -please take adequate measures to prevent any static electricity being produced such as the wearing of a wristband or anti-static gloves when handling this product. -every manufacturing facility in regard to the product (plant, equipment, machine, carrier machine and conveyance unit) should be connected to ground and please avoid the product to be electric-charged. -esd sensitivity of this product is over 1000v (hbm, based on jeita ed-4701/304). -after assembling the leds into your final product(s), it is recommended to check whether the assembled leds are damaged by static electricity (electrical leak phenomenon) or not. -it is easy to find static damaged led dies by a light-on test with the minimum current value. 7-3. caution of product assembly -regarding this product assembling on the heat sink, it is recommended to use m3 screw. it might be good for screw tightening on the heat sink to do temporary tightening and final tightening. in addition, please dont press with excess stress on the product. -the condition of the product assembling on the heat sink and the control of screw tightening torque needs to be optimized according to the specification of the heat sink. -roughness, unevenness and burr of surface negatively impact thermal bonding between the product and heat sink and increase heat thermal resistance between them. confidence of thermally and mechanical coupling between the product and heat sink are confirmed by checking the mounting surface and measuring the case temperature of the product. -in order to reduce the thermal resistance at assembly, it might be good to use tim (thermal interface material) on whole contact surface of the product. in case of using thermal grease for the tim, it might be good to apply uniformly on the contact surface of the product. in case of using thermal sheet for the tim, it might be good to make sure that the product is not strained by stress when the screws are tightened for assembly. -for more information, please refer to application note "instruction manual(cob led package)". 11
ref.ce-p3540 02/16 7-4. thermal design -the thermal design to draw heat away from the led junction is most critical parameter for an led illumination system. high operating temperatures at the led junction adversely affect the performance of leds light output and lifetime. therefore the led junction temperature should not exceed the absolute maximum rating in led illumination system. -the led junction temperature while operation of led illumination system depends upon thermal resistance of internal led package (rj-c), outer thermal resistances of led package, power loss and ambient temperature. please take both of the thermal design specifications and ambient temperature conditions into consideration for the setting of driving conditions. -for more information, please refer to application note "thermal management", "instruction manual(cob led package)". 7-5. driving current -a constant current is recommended as an applying driving current to this product. in the case of constant voltage driving, please connect current-limiting resistor to each products in series and control the driving current to keep under the absolute maximum rating forward current value. -electrical transient might apply excess voltage, excess current and reverse voltage to the product(s). they also affect negative impact on the product(s) therefore please make sure that no excess voltage, no excess current and no reverse voltage is applied to the product(s) when the led driver is turn-on and/or turn-off. -for more information, please refer to application note "driving", "instruction manual(cob led package)". 7-6. lighting at a minimum current value 7-7. electrical safety -this product is designed and produced according to iec 62031:2008 (iec 62031:2008 led modules for general lighting. safety specification) -dielectric voltage withstand test has been conducted on this product to see any failure after applying voltage between active pads and aluminum section of the product, and to pass at least 500v. -considering conformity assessment for iec62031:2008, almost all items of the specification depend upon your final product of led illumination system. therefore, please confirm with your final product for electrical safety of your product. as well, the products comply with the criteria of iec62031:2008 as single led package. 12 -a minimum current value of lighting of all dice is 50ma. when a minimum 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.
ref.ce-p3540 02/16 7-8. recommended soldering condition (this product is not adaptable to reflow process.) -for manual soldering please use lead-free soldering. soldering shall be implemented using a soldering bit at a temperature lower than 350c, and shall be finished within 3.5 seconds for one land. no external force shall be applied to resin part while soldering is implemented. next process of soldering should be carried out after the product has return to ambient temperature. contacts number of soldering bit should be within twice for each terminal. * citizen electronics cannot guarantee if usage exceeds these recommended conditions. please use it after sufficient verification is carried out on your own risk if absolutely necessary. -for more information, please refer to application note "instruction manual(cob led package)". 7-9. eye safety -the international electrical commission (iec) published in 2006 iec 62471 2006 photobiological safety of lamps and lamp systems which includes leds within its scope. when sorting single leds according to iec 62471, almost all white leds can be classified as belonging to either exempt group (no hazard) or risk group 1 (low risk). -however, 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, might have properties equivalent to those of risk group 2 (moderate risk). -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 might greatly increase the hazard to your eyes. -it is recommended to regard the evaluation of stand-alone led packages as a reference and to evaluate your final product. 7-10. this product is not designed for usage under the following conditions. if the product might be used under the following conditions, you shall evaluate its effect and appropriate them. in places where the product might: -directly and indirectly get wet due to rain and/or at place with the fear. -be damage by seawater and/or at place with the fear -be exposed to corrosive gas (such as cl2, h2s, nh3, sox, nox and so on) and/or at place with the fear. -be exposed to dust, fluid or oil and/or at place with the fear. 13
ref.ce-p3540 02/16 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. (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. citizen micro humantech is a registered trademark of citizen holding co., japan. citiled is a registered trademark of citizen electronics co., ltd. japan 14
ref.ce-p3540 02/16 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. 15

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