document number: 63140 for any questions, contact: foil@vishay.com www.vishay.com revision: 12-feb-08 1 var (vishay audio resistor) vishay foil resistors ultra high precision, high resolution z-foil audio resistor, with tcr of 0.2 ppm/c , tolerance to 0.01 % and noise < - 40 db any value at any tolerance available within resistance range introduction the var, composed of vishay?s bulk metal ? z-foil technology, with improved sound quality, provides a combination of low noise and low inductance/capacitance, making it unrivalled for applications requiring low noise and distortion-free properties. while the regular foil resistors are already widely acknowledged as the leading resistors for audio applications, the special ?naked z-foil resistor? design without mold or encapsulation, adds an additional dimension for reducing signal distortion and increasing clarity in signal processing. our application engineering department is available to advise and to make recommendations. for non-standard technical requirements and special applications, please contact us. features ? temperature coefficient of resistance (tcr): - 55 c to + 125 c, 25 c ref. 0.2 ppm/c typical (see table 1) ? rated power: to 0.4 w at + 70 c ? tolerance: to 0.01 % ? load life stability: to 0.01 % at 70 c, 2000 h at rated power ? resistance range: 10 to 100 k (higher or lower values of resistance are available) ? electrostatic discharge (esd) above 25 000 v ? non inductive, non capacitive design ? rise time: 1 ns without ringing ? current noise: < - 40 db ? thermal emf: 0.05 v/c typical ? voltage coefficient: < 0.1 ppm/v ? low inductance: < 0.08 h typical ? non hot spot design ? terminal finishes available: lead (pb)-free tin/lead alloy applications ? high precision amplifiers ? high-end speaker system ? high-end audio circuit ? transducer ? high fidelity audio amplifier note: ? for other values and tighter tole rances, please contact application engineering using the footer below * pb containing terminations are not rohs compliant, exemptions may apply figure 1 - typical tcr curve z-foil + 500 + 200 + 100 0 - 100 - 200 - 300 - 500 - 55 - 25 + 25 + 60 + 75 + 100 + 125 ambient temperature (c) 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 a v aila b le p b -free rohs* compliant table 1 - resistance versus tcr (- 55 c to + 125 c, + 25 c ref.) resistor resistance value ( ) typical tcr and maximum spread (ppm/c) tightest tolerance (%) var 100 to < 100k 0.2 1.8 0.01 50 to < 100 0.2 2.8 0.01 10 to < 50 0.2 3.8 0.02 www.datasheet.co.kr datasheet pdf - http://www..net/
var (vishay audio resistor) vishay foil resistors ultra high precision, high resolution z-foil audio resistor, with tcr of 0.2 ppm/c , tolerance to 0.01 % and noise < - 40 db www.vishay.com for any questi ons, contact: foil@vishay.com document number: 63140 2 revision: 12-feb-08 figure 2 - standard dimensions this product is fragile and may be damaged if mishandled. vishay assumes no responsibility for damage caused by improper handling. table 2 - specifications resistance range ( ) maximum working vol tag e ambient power rating dimensions at + 70 c at + 125 c inches mm 10 to 100k 200 0.4 w 0.2 w w: 0.080 max. l: 0.250 max. h: 0.310 max. ll: 1.000 0.125 ls: 0.150 0.005 w: 2.03 max. l: 6.35 max. h: 7.87 max. ll: 25.4 3.18 ls: 3.81 0.13 lead material #22 a w g ro u nd solder coated copper w l ls h ll soldered pcb figure 3 - power derating curve 200 % 175 % 150 % 125 % 100 % 75 % 50 % 25 % 0 - 75 - 50 - 25 0 + 25 + 50 + 75 + 100 + 125 + 150 + 175 + 200 ambient temperature (c) percent of rated power at + 125 c - 55 c + 70 c do ub le rated po w er rated po w er figure 4 - trimming to values (conceptual illustration) m u t u al ind u ctance red u ction d u e to opposing c u rrent in adjacent lines 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 www.datasheet.co.kr datasheet pdf - http://www..net/
document number: 63140 for any questions, contact: foil@vishay.com www.vishay.com revision: 12-feb-08 3 var (vishay audio resistor) ultra high precision, high resolution z-foil audio resistor, with tcr of 0.2 ppm/c , tolerance to 0.01 % and noise < - 40 db vishay foil resistors note * application engineering release: for non-standard requests, please contact application engineering. table 3 - global part number information new global part number: y070680k5000t9l (preferred part number format) denotes precision resistor value aer* yr = k = k 0 = standard part, tin/lead termination 9 = standard part, lead (pb)-free termination 1 - 999 = custom product code resistance tolerance packaging 0706 = var t = 0.01 % q = 0.02 % a = 0.05 % b = 0.1 % c = 0.25 % d = 0.5 % f = 1.0 % l = bulk pack for example: above global order y0706 80k5000 t 9 l: type: var value: 80.5 k absolute tolerance: 0.01 % termination: lead (pb)-free packaging: bulk pack 7068 k50 0 y0 t9 0 l 0 www.datasheet.co.kr datasheet pdf - http://www..net/
document number: 91000 www.vishay.com revision: 18-jul-08 1 disclaimer legal disclaimer notice vishay all product specifications and data are subject to change without notice. vishay intertechnology, inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, ?vishay?), disclaim any and all liability fo r any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. vishay disclaims any and all li ability arising out of the use or application of any product describ ed herein or of any information provided herein to the maximum extent permit ted by law. the product specifications do not expand or otherwise modify vishay?s terms and conditions of purcha se, including but not limited to the warranty expressed therein, which apply to these products. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of vishay. the products shown herein are not designed for use in medi cal, life-saving, or life-sustaining applications unless otherwise expressly indicated. customers using or selling vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify vishay for any damages arising or resulting from such use or sale. please contact authorized vishay 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. www.datasheet.co.kr datasheet pdf - http://www..net/
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