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| VSR Series Vishay Foil Resistors Bulk Metal(R) Foil Technology Industrial Precision Resistors with TCR of 4 ppm/C and Tolerance of 0.01 % FEATURES * Temperature Coefficient of Resistance (TCR)1): 4 ppm/C (0 C to + 60 C) Pb-free Available 8 ppm/C (- 55 C to + 125 C, + 25 C Ref.) * Resistance Range: 0.5 to 1 M (higher or RoHS* COMPLIANT lower values of resistance are available) * Resistance Tolerance: to 0.01 % * Load Life Stability: to 0.005 % at 70 C, 2000 hours at rated power * Electrostatic Discharge 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 * Inductance: 0.08 H * Matched Sets Available * Terminal Finishes Available: Lead (Pb)-free Tin/Lead Alloy * Any value available within resistance range (e.g. 1K234) * Prototype samples available from 48 hours. For more information, please contact foil@vishay.com * For better performances please review the S Series datasheet Note 1. For values below 50 please contact Application Engineering Any value at any tolerance available with resistance range INTRODUCTION Bulk Metal(R) Foil Technology out performs all other resistor technologies available today for applications that require high precision and high stability. This technology has been pioneered and developed by VISHAY, and products based on this technology are the most suitable for a wide range of applications. Generally Bulk Metal(R) Foil technology allows us to produce customer orientated products designed to satisfy challenging and specific technical requirements. The VSR series of resistors is a low cost version of the well established S-Series of resistors. These resistors are made of foil elements so all of the inherent performance of foil is retained. They do not however, have the same TCR or tolerance ranges (see table 1 for details). These products find a wide range of usage in high end stereo equipment and some grades of test and measurement equipment. Standoffs are dimensioned to provide a minimum lead clearance of 0.010 inches between the resistor body and the printed circuit board, when the standoffs are seated on the board. This allows for proper cleaning after the soldering process. Our Applications Engineering Department is available to advise and to make recommendations for non standard technical requirements and special applications, please contact us. APPLICATIONS * * * * * Industrial Medical Audio (high end stereo equipment) Test and Measurement equipment Precision Amplifiers FIGURE 1 - POWER DERATING CURVE Percent of Rated Power at + 125 C 200 % 175 % 150 % 125 % 100 % 75 % 50 % 25 % 0 - 75 FIGURE 2 - TRIMMING TO VALUES (Conceptual Illustration) - 55 C + 70 C Double Rated Power Interloop Capacitance Reduction in Series Rated Power Current Path Before Trimming Current Path After Trimming Trimming Process Removes this Material from Shorting Strip Area Changing Current Path and Increasing Resistance Safe operation for < 150 ppm R after 2000 hours load-life. Mutual Inductance Reduction due to Change in Current Direction - 50 - 25 0 + 25 + 50 + 75 + 100 + 125 + 150 + 175 + 200 Ambient Temperature (C) Note: Foil shown in black, etched spaces in white * Pb containing terminations are not RoHS compliant, exemptions may apply Document Number: 63009 Revision: 16-Jul-07 For any questions, contact: foil@vishay.com www.vishay.com 1 VSR Series Vishay Foil Resistors Bulk Metal(R) Foil Technology Industrial Precision Resistors with TCR of 4 ppm/C and Tolerance of 0.01 % FIGURE 3 - IMPRINTING AND DIMENSIONS Front View L VISHA Y XXXX VSR4 Date Code 07 10 Year Week ST Model Number LS Lead Material #22AWG Round Solder Coated Copper SW LL Rear View W Resistance Value Code 100R01 0.01 % Tolerance H TABLE 1 - MODEL SELECTION DIMENSIONS MODEL RESISTANCE NUMBER () VSR VSRJ1). 1 to 150K POWER POWER MAXIMUM at at WORKING + 70 C + 125 C VOLTAGE 0.3 W 0.25 W 0.2 W 0.15 W 300 INCHES mm MAXIMUM LOAD LIFE TEMPERATURE STABILITY COEFFICIENT (MAXIMUM OF RESISTANCE R) (+ 25 C REF.) 0.05 % 2000 hours at + 125 C 0 C to + 60 C 4 ppm/C - 55 C to + 125 C 8 ppm/C TIGHTEST TOLERANCE % VS. LOWEST RESISTANCE VALUE () 0.01/25 0.02/12 0.05/5 0.1/2 0.25/2 0.5/1 1/1 0.005/30 0.01/20 0.02/10 0.05/5 0.1/1 0.25/1 0.5/1 1/1 up to 100K over 100K W: 0.105 0.010 2.67 0.25 L: 0.300 0.010 7.62 0.25 H: 0.326 0.010 8.28 0.25 ST: 0.010 Minimum 0.254 Minimum SW: 0.040 0.005 1.02 0.13 LL: 1.000 0.125 25.4 3.18 LS: 0.150 0.0051) 3.81 0.13 W: 0.160 Maximum 4.06 Maximum L: 0.575 Maximum 14.61 Maximum H: 0.413 Maximum 10.49 Maximum 0.89 0.13 ST: 0.035 0.005 1.27 0.13 SW: 0.050 0.005 25.4 3.18 LL: 1.000 0.125 10.16 0.51 LS: 0.400 0.020 W: 0.160 Maximum 4.06 Maximum L: 0.820 Maximum 20.83 Maximum H: 0.413 Maximum 10.49 Maximum 0.89 0.13 ST: 0.035 0.005 1.27 0.13 SW: 0.050 0.005 25.4 3.18 LL: 1.000 0.125 16.51 0.51 LS: 0.650 0.020 W: 0.260 Maximum 6.60 Maximum L: 1.200 Maximum 30.48 Maximum H: 0.413 Maximum 10.49 Maximum 0.89 0.13 ST: 0.035 0.005 1.27 0.13 SW: 0.050 0.005 25.4 3.18 LL: 1.000 0.125 22.86 0.51 LS: 0.900 0.020 VSR4 1 to 500K 0.5 W 0.25 W 0.4 W 0.2 W 350 up to 200K over 200K VSR5 1 to 750K 0.75 W 0.4 W 0.6 W 0.3 W 350 up to 300K over 300K VSR6 0.5 to 1M 1.0 W 0.5 W 0.8 W 0.4 W 500 up to 400K over 400K Note 1. 0.200 inches (5.08 mm) lead spacing available - specify VSRJ. FIGURE 4 - TEMPERATURE COEFFICIENT OF RESISTANCE + 400 + 200 + 100 + 4 ppm/C R R 0 (ppm) - 100 - 200 - 400 + 140 - 4 ppm/C - 140 0 + 25 + 60 Temperature, C www.vishay.com 2 For any questions, contact: foil@vishay.com Document Number: 63009 Revision: 16-Jul-07 VSR Series Bulk Metal(R) Foil Technology Industrial Precision Resistors Vishay Foil Resistors with TCR of 4 ppm/C and Tolerance of 0.01 % TABLE 2 - GLOBAL PART NUMBER INFORMATION NEW GLOBAL PART NUMBER: Y0075100K250A9L (preferred part number format) DENOTES PRECISION Y VALUE R= K = k M = M AER* 0 = Standard 9 = Lead (Pb)-free 1 - 999 = Custom Y 0 0 7 5 1 0 0 K 2 5 0 A 9 L PRODUCT CODE 0075 = VSR 0789 = VSRJ 0020 = VSR4 0021 = VSR5 0022 = VSR6 RESISTANCE TOLERANCE T = 0.01 % Q = 0.02 % A = 0.05 % B = 0.1 % C = 0.25 % D = 0.5 % F = 1.0 % PACKAGING L = Bulk Pack FOR EXAMPLE: ABOVE GLOBAL ORDER Y0075 100K250 A 9 L: TYPE: VSR VALUE: 100.25 k ABSOLUTE TOLERANCE: 0.05 % TERMINATION: Lead (Pb)-free PACKAGING: Bulk Pack HISTORICAL PART NUMBER EXAMPLE: VSRT 100K25 A B (will continue to be used) VSR MODEL VSR VSRJ VSR4 VSR5 VSR6 T TERMINATION T = Lead (Pb)-free None = Tin/Lead alloy 100K25 OHMIC VALUE 100.25 k A RESISTANCE TOLERANCE T = 0.01 % Q = 0.02 % A = 0.05 % B = 0.1 % C = 0.25 % D = 0.5 % F = 1.0 % B PACKAGING B = Bulk Pack Note * For non-standard requests, please contact Application Engineering. Document Number: 63009 Revision: 16-Jul-07 For any questions, contact: foil@vishay.com www.vishay.com 3 Legal Disclaimer Notice Vishay Disclaimer 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 for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay's terms and conditions of purchase, 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 medical, 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. Document Number: 91000 Revision: 18-Jul-08 www.vishay.com 1 |
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