FSR (Secondary Standard Foil Resistor) Vishay Foil Resistors Bulk Metal(R) Foil Resistor Standard with TCR of 0.3 ppm/C, High Stability and Accuracy for Laboratory Calibration Standards Direct Plug-In Device for Most DMM'S Available in the Market FEATURES * Temperature coefficient of resistance (TCR): To 0.3 ppm/C (+15C to +45C) (see Table 1) * Max TCR: 10 to 30 ppm window (see Figure 3) * Resistance range: 1 to 150 k (for higher and lower values, please contact Applications Engineering) * Available up to six significant digits (e.g., 9K99962) * Resistance tolerance available for ordering: to 0.005% (50 ppm) * High accuracy: to 10 ppm (see Table 1) INTRODUCTION * Stability: 0.0005% (5 ppm) at 25C, 12 months A manufacturer of the most precise production-size resistors available, Vishay Foil Resistors (VFR) has experienced the problems presented by virtually all available conventional and specialized secondary standards. Among these are: instrument accuracy, resistance shifts caused by load, temperature or environmental changes, difficulty in measurement of last digits, limitation on usable frequency, size and ease of setting. * No humidity effect: resistive element hermetically sealed against moisture From intensive analysis of these problems, VFR has developed a complete new design. With the unequalled combination of the Bulk Metal(R) Foil resistor's performances, Vishay Foil resistors offer accuracy, stability and versatility never before combined in a secondary standard resistor. * Four terminal constructions with an additional ground socket The FSR reduces these major problems to insignificance: accuracy, resistance shift, frequency, and size. * Thermal stabilization time <1 s (nominal value achieved within 10 ppm of steady state value) Our Application Engineering department is available to advise and make recommendations. * Electrostatic discharge (ESD) at least to 25 kV For non-standard technical requirements and special applications, please contact us via email. * Current noise: 0.010 VRMS/V of applied voltage (<-40 dB) Note (1) Measured by comparison against Vishay Foil Resistor standards which are traceable to NIST. * Small size and robust construction * Direct plug-in device for most DMM's available in the market * Each unit is supplied with certificate of accuracy(1) * RF shielded case * Vishay Foil resistors are not restricted to standard values; specific "as required" values can be supplied at no additional cost or delivery time (e.g., 1K23456 vs. 1K) * Rise time: 1 ns effectively no ringing * Voltage coefficient: 0.1 ppm/V * Non inductive: 0.08 H * Non hot spot design FIGURE 1--DEMONSTRATION FOR EASE OF INSTALLATION ON DMM Document Number: 63223 Revision: 12-Sep-2011 For technical questions, contact: foil@vishaypg.com www.vishayfoilresistors.com 1 FSR (Secondary Standard Foil Resistor) Vishay Foil Resistors TABLE 1--FSR SPECIFICATIONS(1) NOMINAL RESISTANCE VALUE () RESISTANCE TOLERANCE (2) (PPM) ACCURACY (PPM) TYPICAL TCR (PPM/C) +15C TO +45C STABILITY AT 25C, 12 MONTHS (PPM) MAX. ALLOWED POWER AT 25C (3) (W) 1-9.9 100 50 1 5 0.2 10-49.9 100 10 0.6 5 0.2 50-99.9 50 10 0.5 5 0.2 100-150K 50 10 0.3 5 0.2 Note (1) Each unit supplied is within the specified tolerance of the nominal ordered value. In addition, each unit is marked with the actual measured value, such actual measured value being within the specified accuracy of the marked value. (2) For better tolerances, please contact Application Engineering via email below (3) Maximum voltage for a given resistance value is calculated using V = PxR TABLE 2--GENERAL SPECIFICATIONS SPECIFICATIONS PARAMETERS Body and Cover High impact polystyrene Finish Black textured Weight 45 grams Terminals Nickel Silver Operating Temperature Range +15C to +45C FIGURE 2--PHYSICAL DIMENSIONS in Inches (Millimeters) .75" (19.05) = = .75" (19.05) .094" (2.39) .788" (20.0) .375" (9.525) .785" (19.94) = Banana Jack (GROUND) = .4375" (11.11) Banana Plug 1.510" (38.354) 2.260" (57.40) APPLICATIONS In addition to the standard applications for decade boxes and secondary standards, the FSR greatly extends the range of usefulness for these instruments due to their high frequency performance (e.g., R&D, incoming and outgoing inspection stations, quality control, laboratory, etc.). www.vishayfoilresistors.com 2 Vishay Foil Resistors' secondary standards are used for adjustable, direct reading resistance and are substitution components of: RTD, bridge, attenuators, voltage dividers, multipliers, adjustable feedback resistors (for use with operational amplifiers), ladder (network) elements, etc. For technical questions, contact: foil@vishaypg.com Document Number: 63223 Revision: 12-Sep-2011 FSR (Secondary Standard Foil Resistor) Vishay Foil Resistors Deviation ppm FIGURE 3--TYPICAL TCR CURVES WITHIN 10 PPM WINDOW FIGURE 4--TRANSIT CASE (OPTIONAL) FSR device units can be supplied in a protective, lightweight transit case, shielding the units against potential damage or exposure to changes in temperature during transportation. The protective case can store up to 9 FSR units. (+15C to +45C): Typical TCR = 0.3 ppm/C 10 ppm Window +15 +20 +25 +30 +35 +40 Temperature (C) +45 +50 TABLE 3--GLOBAL PART NUMBER INFORMATION (1) DENOTES PRECISION VALUE Y Y 4 0 PRODUCT CODE CHARACTERISTICS R= K = k 2 8 0 (1) 9 K 0 = standard 1 to 999 = custom 9 9 9 6 2 V RESISTANCE TOLERANCE 4028 = FSR 0 I PACKAGING V = 0.005% T = 0.01% I = individual C = transit case FOR EXAMPLE: ABOVE GLOBAL ORDER Y4028 09K99962 V 0 I: TYPE: FSR VALUE: 9K99962 ABSOLUTE TOLERANCE: 0.005% TERMINATION: standard PACKAGING: individual HISTORICAL PART NUMBER: FSR 9K99962 V I FSR 9K99962 V I MODEL FSR RESISTANCE VALUE TOLERANCE V = 0.005 % T = 0.01 % PACKAGING I = individual C = transit case 9K99962 Note (1) For non-standard requests, please contact Application Engineering . Document Number: 63223 Revision: 12-Sep-2011 For technical questions, contact: foil@vishaypg.com www.vishayfoilresistors.com 3 Legal Disclaimer Notice Vishay Precision Group Disclaimer ALL PRODUCTS, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE. Vishay Precision Group, Inc., its affiliates, 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 specifications do not expand or otherwise modify Vishay Precision Group's 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 fitness for particular purpose, non-infringement and merchantability. Information provided in datasheets and/or specifications 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 Group's knowledge of typical requirements that are often placed on Vishay Precision Group products. It is the customer's responsibility to validate that a particular product with the properties described in the product specification 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. Document No.: 63999 Revision: 27-Apr-11 www.vishaypg.com 1