ultra high precision bulk metal ? z-foil surface mount voltage divider, tcr tracking of < 0.1 ppm/c , pcr of 5 ppm at rated power and stability of 0.005 % (50 ppm) im pr oved product dsmz (z-foil) vishay foil resistors document number: 63121 for any questions, contact: foil@vishaypg.com www.foilresistors.com revision: 25-mar-10 1 introduction bulk metal ? z-foil technology out-performs all other resistor technologies available today for applications that require ultra-high precision and ultra-high stabilitly. the z-foil technology provides a significant reduction of the resistive element?s sensitiv ity to ambient temperature variations (tcr) and to self heating when power is applied (power coefficient). the dsmz offers low tcr (both absolute and tracking), low pcr, excellent load life stabi lity, tight tolerance match, excellent ratio stability, low thermal emf, and low current noise - all in one package. the dsmz surface mount divider provides a matched pair of bulk metal ? z-foil resistors in a small epoxy molded package. the electrical spec ification of this integrated construction offers improved performance and better real estate utilization over discrete resistors and matched pairs. our application engineering department is available to advise and make recommendations. for non-standard technical requirements and special applications, please contact us. notes (1) tighter performances are available (2) 100 ? to 12 k ? per resistor available in dsm features ? temperature coefficient of resistance (tcr): absolute: 0.05 ppm/c typ. (0 c to + 60 c) 0.2 ppm/c typ. (- 55 c to + 125 c, + 25 c ref.) tracking: 0.1 ppm/c typical ? power coefficient tracking ? ? r due to self heating?: 5 ppm at rated power ? power rating at 70 c: entire package: 0.1 w, each resistor: 0.05 w ? tolerance: absolute: 0. 02 %; match: 0.01 % ? ratio stability: 0.005 % (0.05 w at 70 c, 2000 h) ? resistance range: 100 ? to 10 k ? per resistor ? large variety of resi stance ratios: 1:100 ? foil resistors are not restricted to standard values/ ratios; specific ?as required? values/ratios can be supplied at no extra cost or delivery (e.g. 1k234/2k345 vs. 1k/2k) ? electrostatic discharge (esd) up to 25 000 v ? short time overload ? 0.005 % ? non-inductive, non-capacitive design ? rise time: 1 ns effectively no ringing ? current noise: < - 40 db ? thermal emf: 0.05 v/c typical ? voltage coefficient: < 0.1 ppm/v ? non inductive: < 0.08 h ? non hot spot design ? terminals: silver coated copper alloy ? compliant to rohs directive 2002/95/ec ? prototype quantities available in just 5 working days or sooner. for more information, please contact foil@vishaypg.com ? for better performances, please contact application engineering applications ? instrumentation amplifiers ? bridge networks ? differential amplifiers ? ratio arms in bridge circuits ? medical and test equipment ? military ? airborne etc. * pb containing terminations are not rohs compliant, exemptions may apply table 1 - resistance values and tolerances (1) resistance values 100 ? to 10 k ? per resistor (2) absolute tolerance each resistor 0.02 %, 0.05 %, 0.1 % resistance tolerance match 0.01 %, 0.02 %, 0.05 % tcr absolute: (typical and maximum spread): 0.2 2.0 ppm/c - 55 c to + 125 c (+ 25 c reference) tracking: (maximum) for r1/r2 = 1 0.5 ppm/c for 1 < r1/r2 ? 10 1.0 ppm/c for 10 < r1/r2 ? 100 2.0 ppm/c figure 1 - schematic option 1 same ohmic value, same absolute tolerance r 1 option 2 resistor pair r 1 /r 2 - different values r 2 figure 2 - power derating curve r 1 r 2 vin vout - + dsmz 125 - 55 90 8 0 - 60 - 40 - 20 0 20 40 60 8 0 100 120 70 140 70 60 50 40 30 20 10 0 100 110 ambient temperature (c) percent of rated watta g e
improved pro d uct dsmz (z-foil) vishay foil resistors www.foilresistors.com for any questions, contact: foil@vishaypg.com document number: 63121 2 revision: 25-mar-10 figure 3 - trimming to values (conceptual illustration) m u t u al ind u ctance red u ction d u e to change in c u rrent direction c u rrent path before trimming note: foil sho w n in b lack, etched spaces in w hite interloop capacitance red u ction in series trimming process remo v es this material from shorting strip area changing c u rrent path and increasing resistance c u rrent path after trimming figure 4 - typical resistance/ temperature curve (for more details, see table 1) + 500 + 200 + 100 0 - 100 - 200 - 300 - 500 - 55 - 25 + 25 + 60 + 75 + 100 + 125 r r (ppm) 0 0.05 ppm/c - 0.1 ppm/c 0.1 ppm/c 0.14 ppm/c 0.2 ppm/c - 0.16 ppm/c - 400 + 300 + 400 ambient temperature (c) and tcr chord slopes for different temperature ran g es figure 5 - dimensions and imprinting dimensions l w h p tw th s t inches 0.160 0.008 0.106 0.008 0.063 0.008 0.031 0.005 0.031 0.004 0.043 0.008 0.100 0.008 0.005 0.002 millimeters 4.06 0.20 2.69 0.20 1.60 0.20 0.79 0.13 0.79 0.10 1.09 0.20 2.54 0.20 0.13 0.05 figure 6 - recommended land pattern w p p t h th l s tw tw w e i v t n o r f w e i v e d i s stand off tw bottom view 10k q 10k v b0219 value r1 ratio tolerance code value r2 date code top view 1 2 3 note: r1 - between pin1 and pin3 r2 - between pin2 and pin3 0.063 0.004 (1.6 0.1) 0.100 0.004 (2.54 0.1) 0.040 0.004 (1.02 0.1) 0.071 0.004 (1.8 0.1) 0.100 0.004 (2.54 0.1) 0.035 0.004 (0.89 0.1)
improved pro d uct dsmz (z-foil) vishay foil resistors document number: 63121 for any questions, contact: foil@vishaypg.com www.foilresistors.com revision: 25-mar-10 3 table 2 - performance specifications (test method per mil-prf-914) specifications typical limits power rating at 70 c entire package: 0.1 w each resistor: 0.05 w maximum working voltage (each resistor) 25 v working temperature range - 65 c to + 125 c thermal shock ? r = 0.01 % (100 ppm) 25 x (- 65 c to + 125 c) ? ratio = 0.005 % (50 ppm) thermal shock 5 x (- 65 c to + 125 c) and ? r = 0.015 % (150 ppm) power conditioning ? ratio = 0.01 % (100 ppm) 1.5 rated power at 25 c, 100 hours dwv atmospheric pressure, 200 v (a.c.) , 1 minute successfully passed insulation resistance 100 v (d.c.), 1 minute > 10 4 m ? resistance to soldering heat ? r = 0.01 % (100 ppm) ? ratio = 0.005 % (50 ppm) moisture resistance ? r = 0.02 % (200 ppm) + 65 c to - 10 c; 90 % to 98 % rh; 0.1 x rated power, 240 hours ? ratio = 0.005 % (50 ppm) shock (specified pulse) ? r = 0.005 % (50 ppm) 100 g ? ratio = 0.0025 % (25 ppm) vibration, high frequency ? r = 0.01 % (100 ppm) (10 hz - 2000 hz), 20 g ? ratio = 0.005 % (50 ppm) high temperature exposure ? r = 0.01 % (100 ppm) 100 hours at 125 c ? ratio = 0.005 % (50 ppm) low temperature storage ? r = 0.005 % (50 ppm) 24 hours at - 65 c ? ratio = 0.005 % (50 ppm) load life stability ? r = 0.005 % (50 ppm) 2000 hours at + 70 c; rated power ? ratio = 0.005 % (50 ppm) short time overload ? r = 0.005 % (50 ppm) 6.25 x rated power; 5 seconds ? ratio = 0.0025 % (25 ppm) low temperature operation ? r = 0.005 % (50 ppm) ? ratio = 0.0025 % (25 ppm) weight 0.04 g
improved pro d uct dsmz (z-foil) vishay foil resistors www.foilresistors.com for any questions, contact: foil@vishaypg.com document number: 63121 4 revision: 25-mar-10 note (1) for non-standard requests or additional val ues, please contact application engineering. note (1) other values available upon request. table 3 - global part number information (1) new global part number: y44 8 5v0067qt9w (preferred part number format) denotes precision vcode tolerance match packaging y resistance value code t = 0.01 % q = 0.02 % a = 0.05 % r = tape and reel w = waffle pack l = bulk pack product code resistance tolerance characteristics 44 8 5 = dsmz q = 0.02 % a = 0.05 % b = 0.10 % 0 = standard 9 = lead (pb)-free 1 to 999 = custom for example: above global order y4485 v0067 q t 9 w: type: dsmz values: 10k/400r absolute tolerance: 0.02 % tolerance match: 0.01 % termination: lead (pb)-free packaging: waffle pack historical part number: dsmz 10k 400r tcr0.2 q t s w (will continue to be used) dsmz 10k 400r tcr0.2 q t s w model ohmic value tcr characteristic absolute tolerance tolerance match termination packaging r 1 = 10 k ? r 2 = 400 ? q = 0.02 % a = 0.05 % b = 0.10 % t = 0.01 % q = 0.02 % a = 0.05 % s = lead (pb)-free b = tin/lead t = tape and reel w = waffle pack b = bulk pack table 4 - resistance value code list for popular ratios (1) vcodes r1/r2 ratio r1 r2 vcodes r1/r2 ratio r1 r2 v0052 100 10k 100r v0080 2.5 1k 400r v0065 50 10k 200r v0081 500r 200r v0066 5k 100r v0082 2 10k 5k v0067 v0068 25 10k 5k 400r 200r v0083 2k 1k v0084 1k 500r v0085 400r 200r v0069 20 10k 500r v0086 200r 100r v0070 2k 100r v0087 1.25 500r 400r v0071 10 10k 1k v0001 v0002 v0059 v0004 v0091 v0090 v0089 v0088 1 10k 5k 2k 1k 500r 400r 200r 100r 10k 5k 2k 1k 500r 400r 200r 100r v0072 2k 200r v0073 1k 100r v0074 5 5k 1k v0075 2k 400r v0076 1k 200r v0077 500r 100r v0246 4 10k 2k5 v0078 2k 500r v0079 400r 100r 4 8 5v 067 0 y4 t9 q w
vishay precision group document no.: 63999 revision: 27-apr-11 www.vishaypg.com 1 legal disclaimer notice 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. legal disclaimer notice disclaimer document no.: 63999 revision: 27-apr-11
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