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  wsl2726 www.vishay.com vishay dale revision: 07-sep-11 1 document number: 30131 for technical questions, contact: ww2bresistors@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 power metal strip ? resistors, low value, high power, surface mount, 4-terminal features ? 4-terminal design allows for 1 % tolerance down to 0.0003 ? ? high power to foot print size ratio ? ideal for all types of current sensing, voltage division and pulse ap plications including switching and linear power supplies, instruments, power am plifiers and shunts ? proprietary processing technique produces extremely low resistance values, down to 0.0005 ? ? all welded construction ? solid metal nickel-chrome or manganese-copper alloy resistive elemen t with low tcr (< 20 ppm/c) ? very low inductance 0.5 nh to 5 nh ? low thermal emf (< 3 v/c) ? aec-q200 qualified available (1) ? compliant to rohs directive 2002/95/ec notes ** please see document vishay material category policy: www.vishay.com/doc?99902 (1) flame retardance test may not be applicable to some resistor technologies. notes ? power rating depends on the max. temperature at the solder point, component placement density and the substrate material . ? part marking: model, value, tolerance, date code . (2) other values may be available, contact factory . standard electrical specifications global model size power rating p 70 c w tolerance % resistance value range ? resistance values currently available (2) ? weight (typical) g/1000 pieces wsl2726 2726 3.0 1.0 0.3m to 5m 0.3m, 0.5m, 1m, 2m, 3m, 4m, 5m 420 technical specifications parameter unit resistor characteristics temperature coefficient ppm/c 75 over temperature of + 20 c to + 60 c operating temperature range c - 65 to + 170 maximum working voltage v ( p x r ) 1/2 global part number information global part numbering example: wsl2726l5000fea (wsl2726, 0.0005 ? , 1 %) global model resistance value tolerance code packaging code special wsl2726 l = m ? l3000 = 0.0003 ? l5000 = 0.0005 ? 1l000 = 0.0010 ? 2l000 = 0.0020 ? 3l000 = 0.0030 ? 4l000 = 0.0040 ? 5l000 = 0.0050 ? f = 1.0 % ea = lead (pb)-free, tape/reel ek = lead (pb)-free, bulk (dash number) (up to 2 digits) from 1 to 99 as applicable w s l 2 7 2 6 l 5 0 0 0 f e a
wsl2726 www.vishay.com vishay dale revision: 07-sep-11 2 document number: 30131 for technical questions, contact: ww2bresistors@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 dimensions derating note ? embossed carrier tape per eia-481 . model dimensions in inches (millimeters) lwhrstu wsl2726 0.272 0.008 (6.9 0.2) 0.260 + 0.012/- 0.008 (6.6 + 0.3/- 0.2) 0.117 0.008 (3.0 0.2) 0.193 0.004 (4.9 0.1) 0.028 0.004 (0.7 0.1) 0.016 0.002 (0.4 0.05) 0.078 0.004 (2.0 0.1) b w d a b c l w s r h t u model solder pad dimensions in inches (millimeters) abcdw wsl2726 0.220 (5.6) 0.096 (2.44) 0.035 (0.89) 0.035 (0.89) 0.290 (7.4) model resistance value (m ? ) element material wsl2726 0.3 mn-cu 0.5 mn-cu 1.0 mn-cu 2.0 ni-cr 3.0 ni-cr 4.0 ni-cr 5.0 ni-cr 70 120 100 80 60 40 20 0 175 150 125 100 75 50 25 0 - 25 - 50 - 65 ambient temperature in c rated power in % performance test conditions of test test limits thermal shock - 55 c to + 150 c, 1000 cycles , 15 min at each extreme (0.5 % + 0.0005 ? ) ? r short time overload 0.3 m ? , 0.5 m ? , 2 m ? and 3 m ? - 5 x rated power for 5 s 4 m ? and 5 m ? - 3 x rated power for 5 s (0.5 % + 0.0005 ? ) ? r low temperature operation - 65 c for 45 min (0.5 % + 0.0005 ? ) ? r high temperature exposure 1000 h at + 170 c (1.0 % + 0.0005 ? ) ? r bias humidity + 85 c, 85 % rh, 10 % bias, 1000 h (0.5 % + 0.0005 ? ) ? r mechanical shock 100 g s for 6 ms, 5 pulses (0.5 % + 0.0005 ? ) ? r vibration frequency varied 10 hz to 2000 hz in 1 min, 3 directions, 12 h (0.5 % + 0.0005 ? ) ? r load life 1000 h at + 70 c, 1.5 h on, 0.5 h off (1.0 % + 0.0005 ? ) ? r resistance to solder heat + 260 c solder, 10 s to 12 s dwell, 25 mm/s emergence (0.5 % + 0.0005 ? ) ? r moisture resistance mil-std-202, method 106, 0 % power, 7b not required (0.5 % + 0.0005 ? ) ? r packaging model reel tape width diameter pieces/reel code wsl2726 16 mm/embossed plastic 330 mm/13" 1500 ea
legal disclaimer notice www.vishay.com vishay revision: 12-mar-12 1 document number: 91000 disclaimer all product, product specifications and data are subject to change without notice to improve reliability, function or design or otherwise. vishay intertechnology, inc., its affiliates, agents, and employee s, and all persons acting on it s or their behalf (collectivel y, vishay), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any o ther disclosure relating to any product. vishay makes no warranty, repres entation or guarantee regarding the suitabilit y of the products for any particular purpose or the continuing production of any product. to the maximum extent permitted by applicable law, vi shay disclaims (i) any and all liability arising out of the application or use of any product, (ii) any and all liability, including without limitation specia l, consequential or incidental damages, and (iii) any and all i mplied warranties, including warra nties of fitness for particular purpose, non-infringement and merchantability. statements regarding the suitability of products for certain type s of applications are based on vishays knowledge of typical requirements that are often placed on vishay products in generic applications. such statements are not binding statements about the suitability of products for a particular application. it is the customers responsib ility to validate that a particu lar product with the properties descri bed in the product specification is suitable fo r use in a particular application. parameters provided in datasheets and/or specification s may vary in different applications an d performance may vary over time. all operating parameters, including typical pa rameters, must be validated for each customer application by the customers technical experts. product specifications do not expand or otherwise modify vish ays terms and condit ions of purchase, including but not limited to the warranty expressed therein. except as expressly indicate d in writing, vishay products are not designed for use in medical, life-saving, or life-sustaining applications or for any other application in which the failure of the vi shay product could result in personal injury or death. customers using or selling vishay products no t expressly indicated for use in such applications do so at their own risk and agr ee to fully indemnify and hold vishay and it s distributors harmless from and against an y and all claims, liabilities, expenses and damages arising or resulting in connection with such use or sale , including attorneys fees, even if such claim alleges that vis hay or its distributor was negligent regarding th e design or manufacture of the part. please contact authorized vishay personnel t o obtain written terms and conditions regardin g products designed for such applications. no license, express or implied, by estoppel or otherwise, to any intellectual prope rty rights is granted by this document or by any conduct of vishay. product names and markings noted herein may be trad emarks of their respective owners. material category policy vishay intertechnology, inc. hereby certi fies that all its products that are id entified as rohs-compliant fulfill the definitions and restrictions defined under directive 2011/65/eu of the euro pean parliament and of the council of june 8, 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment (eee) - recast, unless otherwis e specified as non-compliant. please note that some vishay documentation may still make reference to rohs directive 2002/95/ ec. we confirm that all the products identified as being compliant to directive 2002 /95/ec conform to directive 2011/65/eu.


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