1/9 1. scope of application these specifications are applied to the chip type led lamp , model CL-L251-C4N1-C 2. part code c l - l 2 5 1 - c 4 n 1 - c series l251 : white power led for general lighting. watt class c4 : 4 watt package. lighting color n1 : energy star correlated color temperature 5000(k) approved checked drawn symbol citiled - 2010/3/1 mark date specifications description appro. issue of first edition citizen electronics co.,ltd. CL-L251-C4N1-Cname drawing no ref.ce-p610 03/10 r1(0310)
2/9 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 approved checked drawn symbol citiled - 2010/3/1 mark date specifications name parameter rating value 5.9 560 800 -30 ~ +85 120 -40 ~ +100 1 CL-L251-C4N1-C description appro. citizen electronics co.,ltd. issue of first edition drawing no it has a protection device built in as a protection circuit against static electricity. anode cathode resin protection device anode cathode 8 8 8 4 n 1 c 0 9 7 1 6 3 0 0 0 0 1 ref.ce-p610 03/10 r1(0310)
3/9 ( 2 ) electro-optical characteristics ( tc=25 c ) symbol condition min. typ. max. unit v f i f =480ma 8.75 9.30 10.5 v v i f =480ma 387 455 - lm ra i f =480ma - 67 - - rj-c junction-case - 6.0 - c/w chromaticity coordinates ( condition : i f =480ma ,tc=25 c ) x y center 0.3447 0.3553 a 0.3551 0.3760 b 0.3376 0.3616 c 0.3366 0.3369 d 0.3515 0.3487 note: the tolerance of measurement at our tester is v f 3% , v10% , chromaticity(x,y)0.005. approved checked drawn symbol citiled - 2010/3/1 mark date n1 description appro. citizen electronics co.,ltd. CL-L251-C4N1-C issue of first edition name specifications thermal resistance color rank parameter forward voltage luminous flux general color rendering index drawing no 0.32 0.33 0.34 0.35 0.36 0.37 0.38 0.39 0.32 0.33 0.34 0.35 0.36 0.37 x y ref.ce-p610 03/10 r1(0310)
4/9 5. characteristics forward current vs. forward voltage forward current vs. relative luminous flux forward current vs. chromaticity coordinate case temperature vs. chromaticity coordinate approved checked drawn symbol citiled - 2010/3/1 mark date issue of first edition drawing no description appro. citizen electronics co.,ltd. name CL-L251-C4N1-C specifications -0.020 -0.015 -0.010 -0.005 0.000 0.005 0.010 0.015 0.020 0 100 200 300 400 500 i f [ma] x , y x y 0% 20% 40% 60% 80% 100% 120% 140% 0 100 200 300 400 500 i f [ma] r e l a t i v e l u m i n o u s f l u x [ a . u . ] 7.5 8.0 8.5 9.0 9.5 10.0 10.5 0 100 200 300 400 500 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-p610 03/10 r1(0310)
5/9 case temperature vs. forward voltage case temperature vs. relative luminous flux case temperature vs. allowable forward current spectrum approved checked drawn symbol citiled - 2010/3/1 mark date CL-L251-C4N1-C specifications description appro. citizen electronics co.,ltd. drawing no issue of first edition name 7.5 8.0 8.5 9.0 9.5 10.0 10.5 0 20 40 60 80 100 tc [c] [ v ] 0% 20% 40% 60% 80% 100% 120% 0 20 40 60 80 100 tc [c] r e l a t i v e l u m i n o u s f l u x [ a . u . ] 0.0 0.2 0.4 0.6 0.8 1.0 1.2 350 450 550 650 750 [nm] r e l a t i v e e m i s s i o n i n t e n s i t y [ a . u . ] 0 100 200 300 400 500 600 0 25 50 75 100 125 tc [c] i f [ m a ] i f =480ma i f =480ma i f =480ma ref.ce-p610 03/10 r1(0310)
6/9 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-C4N1-C. approved checked drawn symbol citiled - 2010/3/1 mark date description appro. citizen electronics co.,ltd. total luminous flux returned to the normal ambient conditions after the completion of each test. CL-L251-C4N1-C drawing no name measuring condition judgment criteria for failure measuring item forward voltage 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 i f =480ma -40 c 30 minutes C 100 c 30 minutes, 100 cycle > u 1.1 < s 0.85 ta=-25 c, i f =480 ma 1000 hours(with al-fin) ta=50 c,i f =480 ma 1000 hours(with al-fin) moisture-proof test 60 c, 90 %rh for 1000 hours continuous operation test low temperature storage test test item test condition specifications issue of first edition ref.ce-p610 03/10 r1(0310)
7/9 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: 310 200 14.6mm / materials: electrically conductive ps) approved checked drawn symbol citiled - 2010/3/1 mark date specifications issue of first edition description appro. citizen electronics co.,ltd. name CL-L251-C4N1-C drawing no < packing figure > product 50pcs/tray 310 2 1 0 14.6 1. type e.g. CL-L251-C4N1-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. 240 pieces < example of indication label > customer pass citizen electronics type p.no lot no q'ty CL-L251-C4N1-C xxx 03d001 240 pcs. ---(1) ---(2) ---(3) ---(4) product 50pcs/tray ref.ce-p610 03/10 r1(0310)
8/9 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. can dissipate heat as a whole. however, the use of insulating paste is strongly recommended in order to avoid short circuit. this product could be bent during the clamping operation if heat grease in sheet form is used. for this reason, it is recommended that grease in paste form is used. 5. 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. approved checked drawn symbol citiled - 2010/3/1 mark date 4. thermal conductive silicone grease should be applied to the whole rear surface so that this product in addition, sufficient insulation should be established between heat sink area of led package and specifications surface of fixture. (*surface of fixture: exterior of instrument used for dielectric strength test in electrical appliance and material safety law.) description appro. citizen electronics co.,ltd. CL-L251-C4N1-C condition drawing no name issue of first edition as the connection status could vary depending on materials of outer heat sink, judgmental criterion i f =max.1ma no-lighting in entire block making up parallel circuit is unacceptable resin portion (shaded area) l251 consists of three blocks. recommended installation screw pitch 13.08 1 2 . 6 4 m m thermal conductive silicon grease (insulation paste) outer heat sink spring washer ( Q ?6mm) m3screw (insulation) plane washer ( Q ?6mm) recommended torque : 0.6~0.8n-m ref.ce-p610 03/10 r1(0310)
9/9 precautions (continued) in assembled status. 8. heat generation a heat release design is required to use this product efficiently. please ensure that heat generation is not in excess of the absolute maximum rating. (refer to 4-1 performance) 9. recommended soldering of 40w or lower. the temperature of a soldering iron should be adjusted 350c or lower. - no external force is applied to sealing resin during soldering operation. - please do not handle a product until it returns to a normal temperature. note: this product is not adaptable to reflow process. 10. other - this product complies with rohs directives. office automation equipment, communication devices, audio-video equipment, home electrical appliances, measurement hardware and others). in cases where this product is used for the applications that requires high reliability or could directly affect human life or health due to failure or malfunction (aerospace hardware, medical equipment, atomic control equipment and others), please consult with our sales representatives beforehand. - an agreement of formal product specifications is required prior to mass production. - the specifications and appearance of this product are subject to change without advanced notice. approved checked drawn symbol citiled - 2010/3/1 mark date fabrication such as changes in shape. - our warranty does not cover situations where this product undergoes secondary 6. please be aware that this product should not come into contact with any other parts taken into consideration, depending on ambient temperature (ta). specifications description appro. citizen electronics co.,ltd. name CL-L251-C4N1-C drawing no issue of first edition - soldering operation should be performed within 3.5 seconds per land using a soldering iron - this product is intended for the application in general electronic devices (such as - as this product is designed with consideration of the heat release property of module, - factors responsible for an increase in temperature include heat generation attributed to 7.drive circuit and when two or more led packages are connected, the series connection - a constant current circuit is recommended as a drive circuit. between each package is recommended. ambient temperature conditions or power dissipation. thus, drive conditions should be - 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. ref.ce-p610 03/10 r1(0310)
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