high precision foil resistor with tcr of 2.0 ppm/c , tolerance of 0.005 % and load life stability of 0.005 % s series vishay foil resistors document number: 63001 for any questions, contact: foil@vishaypg.com www.vishayfoilresistors.com revision: 29-jun-11 1 introduction bulk metal ? foil (bmf) technology outperforms all other resistor technologies availabl e today for applications that require high precision and high stability. this technology has been pioneered and developed by visha y foil resistors (vfr), and products based on this technology are the most suitable for a wide range of applications. bmf technology allows the production of customer-oriented products, des igned to satisfy specific challenging technical requirements. the s series of bmf resistors offers low tcr, excellent load li fe stability, tight tolerance, fast response time, low current noise, low thermal emf and low voltage coefficient, all in one resistor. the s series is virtually insensitive to destabillizing factors. t he resistor element is a solid alloy that displays the desirable bulk properties of its parent material, thus it is inherently stable and noise fr ee. the standard design of these resistors provides a unique combination of characteristics found in no other single resistor. vfr's application engineering department is available to ad vise and to make recommendations. for non-standard technical requirements and special applications, please contact foil@vishaypg.com . table 1 - resistance versus tcr (- 55 c to + 125 c, + 25 c ref.) resistor (1) (2) resistance value ( ) typical tcr and max spread (p pm/c) s10 x (c) / (d) 80 to < 1m 2 2.5 s10 x (k) 80 to < 600k 1 2.5 s10 x (c) / (d) 50 to < 80 2 3.5 s10 x (k) 1 3.5 s10 x (c) / (d) 0.5 to < 50 2 4.5 s10 x (k) 1 4.5 features ? temperature coefficient of resistance (tcr): - 55 c to + 125 c, 25 c ref. - s10 x c / d series: 2 ppm/c typical (see table 1) - s10 x k series: 1 ppm/c typical (see table 1) ? power rating: to 1 w at + 125 c ? resistance tolerance: to 0.005 % (50 ppm) ? load life stability: 0.005 % at 70 c, 2000 h at rated power ? resistance range: 0.5 to 1 m (for higher or lower values, please contact application engineering) ? vishay foil resistors are not restricted to standard values; specific ?as required? values can be supplied at no extra cost or delivery (e.g. 1k2345 vs. 1k) ? elec trostatic discharge (esd) at least to 25 kv ? non inductive, non capacitive design ? rise time: 1 ns effectively no ringing ? current noise: 0.010 v rms /v of applied voltage (< - 40 db) ? thermal emf: 0.05 v/c ? voltage coefficient: < 0.1 ppm/v ? low inductance: < 0.08 h ? non hot-spot design ? terminal finishes available: lead (pb)-free, tin/lead alloy ? matched sets are available on request (tcr tracking: to 0.5 ppm/c) ? prototype quantities available in just 5 working days or sooner. for more information, please contact foil@vishaypg.com ? for better tcr performances please review the datasheets for the z series and z203 figure 1 - typical resistance change versus temperature curves and chord slopes (tcr) of two alloy types in military range - 50 - 25 0 + 25 + 50 + 75 + 100 + 125 - 55 c alloy 2 ppm/ c k alloy 1 ppm/ c +1 ppm/ c ? ppm/ c ? ppm/ c +2 ppm/ c + 150 + 100 + 50 0 - 50 - 100 - 150 - 200 r r (ppm) temperature (?) (1) x refers to s series model number - see table 2 (2) (c) and (d) refer to c foil alloy types; (k) refers to the k foil alloy type - see figure 1 * pb containing terminations are not rohs compliant, exemptions may apply
figure 2 - standard imprinting and dimensions ls model number vfr xxxx s102c st 1) h l date code w front vi ew rear vi ew lead material #22 awg round solder coated copper optional customer part number print specification, etc. if required resistance value code tolerance xxxxxx 100r01 0.01 % ll sw 10 week 01 year (pb - free coating available) note 1. standoffs provided to allow proper flus hing of flux, debris, and contaminates from under resistor after all solder operations . 2. the standoffs shall be so located as to give a lead clearanc e o f 0.010" minimum between the resistor body and the printed cir cuit board when the standoffs are seated on the printed circuit board. table 2 - model selection model number resistance range ( ) maximum wo rking voltage ambient power rating average we ight in grams dimensions tightest t olerance vs. lowest resistance value at + 70 c at + 125 c inches mm f (1) (inches) s102c ( s102j) (2) 1 to 150k 300 0.6 w 0.3 w 0.6 w: 0.105 0.010 l: 0.300 0.0 10 h: 0.326 0.010 st: 0.010 min. sw: 0.040 0.005 ll: 1.000 0.125 ls: 0.150 0.005 2.67 0.25 7.62 0.25 8.28 0.25 0.254 min. 1.02 0.13 25.4 3.18 3.81 0.13 0.005 %/50 0.01 %/25 0.02 %/12 0.05 %/5 0.1 %/2 0.50 %/1 1 %/0.5 up to 100k s102k ( s102l) (2) 1 to 100k 0.4 w 0.2 w over 100k s104d ( s104f) (1) 1 to 500k 350 1.0 w 0.5 w 1.4 w: 0.160 max. l : 0.575 max. h: 0.413 max. st: 0.035 0.005 sw: 0.050 0.005 ll: 1.000 0.125 ls: 0.400 0.020 4.06 max. 14.61 max. 10.49 max. 0.889 0.13 1.27 0.13 25.4 3.18 10.16 0.51 (0.138) ( 0.565) (0.413) up to 200k s104k 1 to 300k 0.6 w 0.3 w over 200k s105d ( s105f) (1) 1 to 750k 350 1.5 w 0.75 w 1.9 w: 0.160 max. l : 0.820 max. h: 0.413 max. st: 0.035 0.005 sw: 0.050 0.005 ll: 1.000 0.125 ls: 0.650 0.020 4.06 max. 20.83 max. 10.49 max. 0.889 0.13 1.27 0.13 25.4 3.18 16.51 0.51 (0.138) ( 0.890) (0.413) (0.7 0.05) up to 300k s105k 1 to 500k 0.8 w 0.4 w over 300k s106d 0.5 to 1m 500 2.0 w 1.0 w 4.0 w: 0.260 max. l : 1.200 max. h: 0.413 max. st: 0.035 0.005 sw: 0.050 0.005 ll: 1.000 0.125 ls: 0.900 0.020 6.60 max. 30.48 max. 10.49 max. 0.889 0.13 1.27 0.13 25.4 3.18 22.86 0.51 up to 400k s106k 0.5 to 600k 1.0 w 0.5 w over 400k s series vishay foil resistors www.vishayfoilresistors.com f or any questions, contact: foil@vishaypg.com document number: 63001 2 revision: 29-jun-11 notes (1) s104f and s105f have different pack age dimensions (see the third column of dimensions). all other specific ations are the same. (2) 0.200" (5.08 mm) lead spacing available - specify s102j for s102c, and s102l for s102k.
figure 3 - power derating curve 200 % 175 % 150 % 125 % 100 % 75 % 50 % 25 % 0 % - 75 ambient temperature (c) percent of rated power at + 125 c - 55 c double rated power rated power 200175150125100 755025 0- 25 - 50 + 70 c s series vishay foil resistors document number: 63001 for any questions, contact: foil@vishaypg.com www.vishayfoilresistors.com revision: 29-jun-11 3 figure 4 - trimming to values (conceptual illustration) mutual inductance reduction due to change in current direction current path before trimming note: foil shown in black, etched spaces in white interloop capacitance reduction in series trimming process removes this material from shorting strip area changing current path and increasing resistance current path after trimming table 3 - environmental performance comparison mil-prf-55182 char j s-series ma ximum r s-series typical r test group i thermal shock, 5 x (- 65 c to + 150 c) 0.2 % 0.01 % (100 ppm) 0.002 % (20 ppm) short time overload, 6.25 x rated power 0.2 % 0.01 % (100 ppm) 0.003 % (30 ppm) test group ii resistance temperature characteristics (1) 25 ppm/c 6.5 ppm/c 2.0 ppm/c low temperature storage (24 h at - 65 c) 0.15 % 0.01 % (100 ppm) 0.002 % (20 ppm) low temperature operation (45 min, rated power at - 65 c) 0.15 % 0.01 % (100 ppm) 0.002 % (20 ppm) terminal strength 0.2 % 0.01 % (100 ppm) 0.002 % (20 ppm) test group iii dielectric withstanding voltage (dwv) 0.15 % 0.01 % (100 ppm) 0.002 % (20 ppm) resistance to solder heat 0.1 % 0.01 % (100 ppm) 0.005 % (50 ppm) moisture resistance 0.4 % 0.05 % (500 ppm) 0.01 % (100 ppm) test group iv shock 0.2 % 0.01 % (100 ppm) 0.002 % (20 ppm) vibration 0.2 % 0.01 % (100 ppm) 0.002 % (20 ppm) test group v life test at 0.3 w/+ 125 c 2000 h 0.5 % 0.015 % (150 ppm) 0.01 % (100 ppm) 10 000 h 2.0 % 0.05 % (500 ppm) 0.03 % (300 ppm) test group va life test at 0.6 w (2 x rated power)/+ 70 c, 2000 h 0.5 % 0.015 % (150 ppm) 0.01 % (100 ppm) test group vi high temperature exposure (2000 h at + 175 c) 2.0 % 0.1 % (1000 ppm) 0.05 % (500 ppm) test group vii voltage coefficient 5 ppm/v < 0.1 ppm/v < 0.1 ppm/v (1) see table 1.
figure 5 - long-term stability over 29 years (0.1w at 70c, 50 samples s102c, 10k ) r/r (ppm) time (years) 40 20 0 -20 -40 -60 -80 -100 -120 0 5 10 15 20 25 30 s series vishay foil resistors www.vishayfoilresistors.com f or any questions, contact: foil@vishaypg.com document number: 63001 4 revision: 29-jun-11 standard operations and test conditions a. standard test operations: by 100 % inspection ? short-time ove rload (6.25 x rated power for 5 s) ? resistance - to lerance check ? visual an d mechanical by sample inspection ? tcr ? environmen tal tests per table 3 on a quarterly basis to establish performance by similarity b. standard test conditions: ? lead test point: 0.5" (12.7 mm) from resistor body ? tempe rature: + 23 c 2 c ? rela tive humidity : per mil-std-202 improved performa nce testing (ipt) the preceding information is based on product directly off the production line. improved performance (meaning increased time stabil ity with load and other stresses) is available through factory conducted ?improved performance testing?. the test routine is usually tailored to the user?s stability objectives and ipt-processed resistors can exhibit improved load-life stability levels of less than 50 ppm. various screen test routines ar e a vailable and all anticipated stresses must be taken into ac count before settling on one specific test routine. vfr's application engineering department is prepared to discuss and recommend appropriate routines given the full spectrum of anticipated stresses and stabi lity requirements. table 4 - ?s? series specifications stability (1) load life at 2000 h 0.015 % (150 ppm) maximum r a t 0.3 w/+ 125 c 0.005 % (50 ppm) maximum r a t 0.1 w/+ 70 c load life at 10 000 h 0.05 % (500 ppm) maximum r a t 0.3 w/+ 125 c 0.01 % (100 ppm) maximum r a t 0.05 w/+ 125 c current noise 0.010 v (rms)/v of applied voltage (- 40 db) high frequency operation rise time 1.0 ns at 1 k inductance (l) (2) 0.1 h maximum; 0.08 h typical capacitance (c) 1.0 pf maximum; 0.5 pf typical voltage coefficient < 0.1 ppm/v (3) thermal electromotive force (emf) (4) 0.1 v/c maximum; 0.05 v/c typical 1 v/w (model s102c) notes (1) load life r maximum can be reduced by 80 %, please contact applications engineering department. (2) inductance (l) due mainly to the leads. (3) the resolution limit of existing test equipment (within the m easurement capability of the equipment, or ?essentially zero?.) (4) v/c relates to emf due to lead temperature difference and v/watt due to power applied to the resistor.
table 5 - global part number information (1) new global part number: Y000780K5000V9L (preferred part number format) denotes precision value characteristics y r = k = k m = m 0 = standard 9 = lead (pb)-free 1 to 999 = c ustom product code resistance tolerance packaging 0007 = s 102c 0785 = s 102j 0062 = s 102k 0786 = s 102l 0011 = s 104d 5011 = s 104f 0101 = s 104k 4101 = s 104l 0012 = s 105d 4012 = s 105f 0102 = s 105k 4102 = s 105l 0013 = s 106d 0103 = s 106k v = 0.00 5 % t = 0.01 % q = 0.02 % a = 0.05 % b = 0.1 % c = 0.25 % d = 0.5 % f = 1.0 % l = bu lk pack for example: above global order y0007 80k5000 v 9 l: type: s102c value: 80.5 k absolute tolerance: 0.005 % termination: lead (pb)-free packaging: bulk pack historical part number: s102c t 80k500 v b (will continue to be used) s102c t 80k500 v b model termination resistance value tolerance packaging s102c s102 j s102k s102l s104d s104f s104k s104l s105d s105f s105k s105l s106d s106k t = lead (pb) -free none = tin/lead alloy 250r00 = 250.0 0 5k2310 = 5.231 k 1m000 = 1 m v = 0.005 % t = 0.01 % q = 0.02 % a = 0.05 % b = 0.1 % c = 0.25 % d = 0.5 % f = 1.0 % b = bulk pack s series vishay foil resistors document number: 63001 for any questions, contact: foil@vishaypg.com www.vishayfoilresistors.com revision: 29-jun-11 5 note (1) for non-standard requests, please contact application engineering. 0078 k50 0 y0 v9 0 l 0
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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