bulk metal ? technology high precision, current sensing, power surface mount, metal strip resistor with resistance value from 1 m , rated power up to 3 w and tcr to 0 15 ppm/c maximum csm series vishay foil resistors document number: 63089 for any questions, contact: foil@vishaypg.com www.vishayfoilresistors.com revision: 3-may-11 1 no minimum order quantity and any value at any tolerance available within resistance range. vishay foil resistors? application engineering department is avai lable to advise and make recommendations. for non-standard technical requirements and special a pplications, please contact foil@vishaypg.com . i a r z in i d v = ~ bc four terminal (kelvin) design: allows for precise and accurate measurements . figure 1 - power derating curve - 65 - 50 - 25 0 25 50 75 100 125 150 170 ambient temperature (c) 100 80 60 40 20 0 rated power (%) + 70 c features ? temperature coefficient of resistance: 15 ppm/c max. (- 55 c to + 125 c, + 25 c ref.); 10 ppm/c max. (- 55 c to + 125 c, + 25 c ref.) is available on request (see table 1) ? po wer rating: 1 w to 3 w ? r esistance tolerance: 0.1 % ? r esistance range: 1 m to 200 m (1) ? vishay foil resistors are not restricted to standard values, specific ?as required? values can be supplied at no extra cost or delivery (e.g. 2.3456 m vs. 2 m ) ? l oad life stability to 0.2 % (70 c, 2000 h at rated power) ? sh ort time overload: 0.1 % typical ? the rmal emf: 3 v/c (dc offset error, significant for low values) ? max imum current: up to 54 a ? pro prietary processing techniques produce low tcr, tight tolerance and improve stability ? lo w inductance < 5 nh ? so lderable terminations ? excel lent frequency response to 50 mhz ? ma tched sets are available on request ? sc reening in accordance with eee-inst002 available (per mil-prf-55342 and mil-prf-49465; see 303144 and 303145 datasheets) ? t erminal finishes available: lead (pb)-free, tin/lead alloy ? prot otype quantities available in just 5 working days or sooner. for more information, please contact foil@vishaypg.com ? for better performance please contact application engineering ? compliant to rohs directive 2002/95/ec table 1 - specifications parameter csm2512 csm3637 resistance range 1 m to 200 m (1) power rating at 70 c 1 w (2) 3 w ( 1 m to 10 m ) 2 w (> 10 m to 200 m ) maximum current (3) 31 a 54 a tolerance 0.5 % (1 m to < 3 m ) 0.1 % (3 m to 200 m ) 0.5 % (1 m to < 2 m ) 0.1 % (2 m to 200 m ) temperature coefficient max. (- 55 c to + 125 c, + 25 c ref.) 50 ppm/c (1 m to < 3 m ) 15 ppm/c (3 m to 200 m ) 10 ppm/c (3 m to 10 m ) is available on request (4) 25 ppm/c (1 m to < 3 m ) 15 ppm/c (3 m to 200 m ) 10 ppm/c (1 m to 10 m ) is available on request (4) operating temperature range - 65 c to + 170 c maximum working voltage ( p x r ) 1/2 weight (maximum) 0.09 g 0.29 g notes (1) for csm2512 up to 500 m please contact appl ication engineer ing: foil@vishaypg.com (2) for values above 0.1 derate linearly to 80 % rated power at 0.5 (3) maximum current for a given resist ance value is calculated using i pr ? = (4) please contact application engineering: foil@vishaypg.com * pb containing terminations are not rohs compliant, exemptions may apply
csm series vishay foil resistors www.vishayfoilresistors.com f or any questions, contact: foil@vishaypg.com document number: 63089 2 revision: 3-may-11 about csm (low ohm value 1 m the key applications applications requiring accuracy and repeatability under stress conditions such as the following: ? ? ? ? ? ? ? ? ? ? ? ?
figure 2 - dimensions and imprinting in inches (millimeters) h a w b t l csm2512 dimensions (1) e i a d c b csm2512 land pattern e 1 e 2 i 1 i 2 kelvin connection i 1 , i 2 - current e 1 , e 2 - sense i a d c b csm3637 land pattern e 1 e 2 i 1 i 2 h a w b t l csm3637 dimensions (1) dimensions - tolerances 0.010 ( 0.254), * 0.015 ( 0.381) model resistance range (m ) l w h t a b csm2512 1 to < 5 0.250 (6.350) 0.125 (3.175) 0.025 (0.635) 0.087 (2.210) 0.030 (0.762)* 0.032 (0.813)* 5 to < 7 0.047 (1.194) 7 to 200 0.030 (0.762) csm3637 1 to < 2 0.360 (9.144) 0.370 (9.398) 0.025 (0.635) 0.138 (3.505) 0.061 (1.55) 0.032 (0.813) 2 to 200 0.360 (9.144) 0.370 (9.398) 0.025 (0.635) 0.086 (2.184) 0.061 (1.549) 0.032 (0.813) land pattern dimensions - tolerances 0.003 ( 0.076) model range a b c d e i csm2512 0r001 to 0r0049 0.120 (3.05) 0.145 (3.68) 0.045 (1.14) 0.021 (0.53) 0.055 (1.39) 0.050 (1.27) 0r005 to 0r0069 0.083 (2.10) 0.145 (3.68) 0.045 (1.14) 0.021 (0.53) 0.055 (1.39) 0.125 (3.17) 0r007 to 0r2 0.065 (1.65) 0.145 (3.68) 0.045 (1.14) 0.021 (0.53) 0.055 (1.39) 0.160 (4.06) csm3637 0r001 to 0r0019 0.168 (4.27) 0.390 (9.91) 0.066 (1.68) 0.024 (0.610) - 0.074 (1.88) 0r002 to 0r2 0.116 (2.95) 0.390 (9.91) 0.066 (1.68) 0.024 (0.610) - 0.178 (4.52) csm series vishay foil resistors document number: 63089 for any questions, contact: foil@vishaypg.com www.vishayfoilresistors.com revision: 3-may-11 3 note (1) white dot indicates top side of part for mounting purposes
table 2 - csm series performance specifications test conditions mil-prf-49465b r limits csm2512/csm3637 typical r limits maximum r limits thermal shock - 55 c to + 150 c, 1000 cycles, 15 min at each extreme (0.5 % + 0.0005r) 0.1 % 0.3 % load life stability 2000 h, 70 c at rated power (1.0 % + 0.0005r) 0.2 % 0.5 % bias humidity + 85 c, 85 % humidity 10 % b ias, 1000 h (0.5 % + 0.0005r) 0.05 % 0.2 % short time overload 5 x rated power for 5 s (see note (3) from table 1) (0.5 % + 0.0005r) 0.1 % 0.2 % high temperature exposure 1000 h, 170 c (1.0 % + 0.0005r) 0.2 % 0.3 % low temperature storage - 65 c for 24 h (0.5 % + 0.0005r) 0.05 % 0.1 % moisture resistance mil-std-202, method 106, 0 power , 7a and 7b not required (0.5 % + 0.0005r) 0.02 % 0.05 % shock 100 g, 6 ms, 5 pulses (0.1 % + 0.0005r) 0.02 % 0.05 % vibration (10 hz to 2000 hz) 20 g (0.1 % + 0.0005r) 0.02 % 0.05 % resistance to soldering heat 10 s to 12 s at + 260 c (0.25 % + 0.0005r) 0.05 % 0.1 % solderability mil-std-202 95 % coverage - - figure 3 - load life results of csm2512 0 500 1000 1500 2000 2500 -3000 -2500 -2000 -1500 -1000 -500 0 500 1000 1500 2000 2500 3000 csm2512 0r05 load life 2000hrs @ 1w @ +70c (15 units) time (hours) r/r (ppm) csm series vishay foil resistors www.vishayfoilresistors.com f or any questions, contact: foil@vishaypg.com document number: 63089 4 revision: 3-may-11
figure 4 - thermal shock r esults of csm3637 and csm2512 csm3637 0r1 csm3637 0r2 csm2512 0r1 csm2512 0r2 -2000 -1500 -1000 -500 0 500 1000 1500 2000 ?r/r (ppm) type and value thermal shock (-55c to +150c) x 1000 cycles 20 units each type and value figure 5 - bias humidity results of csm3637 and csm2512 csm3637 0r2 csm3637 0r1 csm2512 0r1 csm2512 0r2 -1000 -800 -600 -400 -200 0 200 400 600 800 1000 ?r/r (ppm) type and value bias humidity 1000 hrs @ +85c @ 85% rh 10 units each type and value csm series vishay foil resistors document number: 63089 for any questions, contact: foil@vishaypg.com www.vishayfoilresistors.com revision: 3-may-11 5
figure 6 - pulse test i 0 5 10 15 20 25 30 35 current (a) time (sec) 5 sec 10 sec csm3637 0r005 test - 10 units (5 pulses of 5 sec @ 30 a, 10 sec @ 0 a) average resistance deviation: 696 ppm std = 305 ppm, measurement error = 0.0005r figure 7 - pulse test ii 0 5 10 15 20 25 csm3637 0r005 pulse test - 10 units (35 pulses of 0.2 msec @ 20 a, 0.5 msec @ 3 a) average resistance deviation: 13.3 ppm std = 27.3 ppm, measurement error = 0.0005r 0.2 msec current (a) time (msec) 0.5 msec csm series vishay foil resistors www.vishayfoilresistors.com f or any questions, contact: foil@vishaypg.com document number: 63089 6 revision: 3-may-11
table 3 - global part number information (1) new global part number: y14870r12400b0r (preferred part n umber format) denotes precision value characteristics y r = 0 = standard 9 = lead (pb)-free 1 to 999 = c ustom product code resistance tolerance packaging 1487 = csm2512 1488 = csm3637 b = 0.1 % c = 0.25 % d = 0.5 % f = 1.0 % w = waffle r = tape and reel for example: above global order y1487 0r12400 b 0 r: type: csm2512 value: 124.0 m absolute tolerance: 0.1 % termination: standard tin/lead packaging: tape and reel historical part number: csm2512 0r1240 b b t (will continue to be used) csm2512 0r1240 b b t model ohmic value abs. tolerance termination packaging 0.124 b = 0.1 % c = 0.25 % d = 0.5 % f = 1.0 % s = lead (pb)-free b = tin /lead t = tape and reel w = wa ffle pack csm series vishay foil resistors document number: 63089 for any questions, contact: foil@vishaypg.com www.vishayfoilresistors.com revision: 3-may-11 7 note (1) for non-standard requests, please contact application engineering 4870 124 r y1 b0 0 r 0
vishay precision group document no.: 63999 revision: 27-apr-2011 www.vishaypg.com 1 legal disclaimer notice disclaimer legal disclaimer notice disclaimer document no.: 63999 revision: 27-apr-2011 all products, product specifications and data are subject to change without notice. vishay precision group, inc., its affliates, agents, and employees, and all persons acting on its or their behalf (collectively, vishay precision group), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. the product specifcations do not expand or otherwise modify vishay precision groups terms and conditions of purchase, including but not limited to, the warranty expressed therein. vishay precision group makes no warranty, representation or guarantee other than as set forth in the terms and conditions of purchase. to the maximum extent permitted by applicable law, vishay precision group disclaims (i) any and all liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special, consequential or incidental damages, and (iii) any and all implied warranties, including warranties of ftness for particular purpose, non-infringement and merchantability. information provided in datasheets and/or specifcations may vary from actual results in different applications and performance may vary over time. statements regarding the suitability of products for certain types of applications are based on vishay precision groups knowledge of typical requirements that are often placed on vishay precision group products. it is the customers responsibility to validate that a particular product with the properties described in the product specifcation is suitable for use in a particular application. no license, express, implied, or otherwise, to any intellectual property rights is granted by this document, or by any conduct of vishay precision group. the products shown herein are not designed for use in life-saving or life-sustaining applications unless otherwise expressly indicated. customers using or selling vishay precision group products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify vishay precision group for any damages arising or resulting from such use or sale. please contact authorized vishay precision group personnel to obtain written terms and conditions regarding products designed for such applications. product names and markings noted herein may be trademarks of their respective owners.
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