VSM Series (0805, 1206, 1506, 2010, 2512) Vishay Foil Resistors High Precision Foil Wraparound Surface Mount Chip Resistor with TCR of 2 ppm/C and Load Life Stability of 0.01 % (100 ppm) FEATURES INTRODUCTION Bulk Metal(R) Foil (BMF) Technology out-performs all other resistor technologies available today for applications that require high precision and high stability, and allows production of customer oriented products designed to satisfy challenging and specific technical requirements. The BMF provides an inherently low and predictable Temperature Coefficient of Resistance (TCR) and excellent load life stability for high precision analog applications. IM PR O VE D Model VSM offers low TCR, excellent load life stability, tight tolerance, excellent shelf life stability, low current noise and low voltage coefficient, all in the same resistor. PR O DU CT Any value at any tolerance within resistance range The VSM has a full wraparound termination which ensures safe handling during the manufacturing process, as well as providing stability during multiple thermal cyclings. Our Application Engineering Department is available to advise and make recommendations. For non-standard technical requirements and special applications, please contact us using the e-mail address in the footer below. TABLE 1 - TOLERANCE AND TCR VS RESISTANCE VALUE1) (- 55 C to + 125 C, + 25 C Ref.) RESISTANCE VALUE () 250 to 150K 100 to < 250 50 to < 100 25 to < 50 10 to < 25 TOLERANCE (%) 0.01 0.02 0.05 0.1 0.25 APPLICATIONS * * * * * * * * * TYPICAL TCR AND MAX. SPREAD (ppm/C) 22 23 23 24 26 Note 1. For tighter performances, please contact Vishay Application Engineering using the e-mail addresses in the footer below. Automatic Test Equipment (ATE) High Precision Instrumentation Laboratory, Industrial and Medical Audio EB Applications (electron beam scanning and recording equipment, electron microscopes) Military and Space Airborne Down Hole instrumentation Communication FIGURE 1 - POWER DERATING CURVE Percent of Rated Power Top View * Temperature Coefficient of Resistance (TCR): 2.0 ppm/C typical (- 55 C to + 125 C, Pb-free Available + 25 C Ref.) (see Table 1) * Tolerance: to 0.01 % RoHS* COMPLIANT * Power Rating: to 400 mW at + 70 C * Load Life Stability: to 0.01 % at 70 C, 2000 hours at Rated Power * Resistance Range: 10 to 150 k (for higher and lower values, please contact us) * Electrostatic Discharge (ESD) above 25 000 V * Short Time Overload: 0.01 % * Non Inductive, Non Capacitive Design * Rise Time: 1 ns without ringing * Current Noise: - 40 dB * Voltage Coefficient < 0.1 ppm/V * Non Inductive: < 0.08 H * Non Hot Spot Design * Terminal Finishes Available: Lead (Pb)-free Tin/Lead Alloy * Matched sets are available per request * Any value available within resistance range (e.g. 1K2345) * Prototype samples available from 48 hours. For more information, please contact foil@vishay.com * For better performances please review VSMP and VFCP Series datasheets + 70 C - 55 C 100 75 50 25 0 - 75 - 50 - 25 0 + 25 + 50 + 75 + 100 + 125 + 150 + 175 Ambient Temperature (C) * Pb containing terminations are not RoHS compliant, exemptions may apply www.vishay.com 1 For any questions, contact: foil@vishay.com Document Number: 63070 Revision: 24-May-07 VSM Series (0805, 1206, 1506, 2010, 2512) High Precision Foil Wraparound Surface Vishay Foil Resistors Mount Chip Resistor with TCR of 2 ppm/C and Load Life Stability of 0.01 % (100 ppm) FIGURE 2 - TRIMMING TO VALUES (Conceptual Illustration) FIGURE 3 -TYPICAL TCR CURVE (For more details, see Table 1) + 150 + 100 Current Path After Trimming Trimming Process Removes this Material from Shorting Strip Area Changing Current Path and Increasing Resistance Mutual Inductance Reduction due to Change in Current Direction R 2 ppm/C (+ 25 C reference) + 50 0 R (ppm) PR O DU CT Current Path Before Trimming Interloop Capacitance Reduction in Series - 50 - 100 - 150 - 200 - 50 - 55 - 25 0 + 25 + 50 + 75 + 100 + 125 Ambient Temperature (C) Note * The TCR values for < 100 are influenced by the termination composition and result in deviation from this curve. Note: Foil shown in black, etched spaces in white TABLE 2 - DIMENSIONS AND LAND PATTERN in inches (millimeters) Bottom View for Mounting Uncoated L Ceramic Recommended Land Pattern Footprint X G W T Z D CHIP SIZE W 0.005 (0.13) 0.050 (1.27) 0.062 (1.57) 0.062 (1.57) 0.097 (2.46) 0.127 (3.23) THICKNESS MAXIMUM 0.025 (0.64) 0.025 (0.64) 0.025 (0.64) 0.025 (0.64) 0.025 (0.64) D 0.005 (0.13) 0.015 (0.38) 0.020 (0.51) 0.020 (0.51) 0.025 (0.64) 0.032 (0.81) IM PR O VE D 0805 1206 1506 2010 2512 L 0.005 (0.13) 0.080 (2.03) 0.126 (3.20) 0.150 (3.81) 0.198 (5.03) 0.249 (6.32) Z1) MAXIMUM 0.122 (3.10) 0.175 (4.45) 0.199 (5.05) 0.247 (6.27) 0.291 (7.39) G1) MINIMUM 0.028 (0.71) 0.059 (1.50) 0.083 (2.11) 0.115 (2.92) 0.150 (3.81) X1) MAXIMUM 0.050 (1.27) 0.071 (1.80) 0.071 (1.80) 0.103 (2.62) 0.127 (3.23) Note 1. Land Pattern Dimensions are per IPC-782 TABLE 3 - SPECIFICATIONS RATED POWER (mW) at + 70 C 100 150 200 300 400 CHIP SIZE 0805 1206 1506 2010 2512 MAX VOLTAGE RATING ( P x R ) 34 V 67 V 89 V 173 V 220 V RESISTANCE RANGE () 10 to 12K 10 to 30K 10 to 40K 10 to 100K 10 to 150K MAXIMUM WEIGHT (mg) 6 11 12 27 40 TABLE 4 - PERFORMANCES MIL-PRF-55342 CHARACTERISTIC E R LIMITS 0.1 % 0.005 % (50 ppm) 0.02 % (200 ppm) Low Temperature Operation 0.1 % 0.01 % (100 ppm) 0.02 % (200 ppm) Short Time Overload 0.1 % 0.01 % (100 ppm) 0.02 % (200 ppm) High Temperature Exposure 0.1 % 0.01 % (100 ppm) 0.03 % (300 ppm) Resistance to Soldering Heat 0.2 % 0.005 % (50 ppm) 0.01 % (100 ppm) Moisture Resistance 0.2 % 0.005 % (50 ppm) 0.03 % (300 ppm) Load Life Stability + 70 C for 2000 hours at Rated Power 0.5 % 0.005 % (50 ppm) 0.01 % (100 ppm) TEST OR CONDITIONS Thermal Shock TYPICAL R LIMITS MAXIMUM R LIMITS1) Note 1. As shown + 0.01 to allow for measurement errors at low values. Document Number: 63070 Revision: 24-May-07 For any questions, contact: foil@vishay.com www.vishay.com 2 VSM Series (0805, 1206, 1506, 2010, 2512) Vishay Foil Resistors High Precision Foil Wraparound Surface Mount Chip Resistor with TCR of 2 ppm/C and Load Life Stability of 0.01 % (100 ppm) FIGURE 4 - RECOMMENDED MOUNTING TABLE 5 - DSCC SPECIFICATIONS Vishay resistors are listed on the dollowing DSCC specifications MODEL DSCC MIL SPEC VSM1506 03010 MIL-PRF-55342 PR O DU CT 25 % to 85 % of T A low profile solder fillet is recommended to avoid unnecessary stresses along top edge of metallization. IR and vapor phase reflow are best. Avoid the use of cleaning agents which could attack epoxy resins, which form part of the resistor construction. VSM2010 06001 MIL-PRF-55342 VSM2512 06002 MIL-PRF-55342 Note * For VSM0805 and VSM1206 DSCC drawings, please contact foil@vishay.com TABLE 6 - GLOBAL PART NUMBER INFORMATION NEW GLOBAL PART NUMBER: Y145512K7560T9R (preferred part number format) DENOTES PRECISION VALUE AER* Y R= K = k 0 = Standard 9 = Lead (Pb)-free 1 - 999 = Custom Y 1 4 5 5 1 2 K 7 5 6 0 T 9 R RESISTANCE TOLERANCE PACKAGING 1172 = VSM0805 1496 = VSM1206 1455 = VSM1506 1611 = VSM2010 1612 = VSM2512 T = 0.01 % Q = 0.02 % A = 0.05 % B = 0.10 % C = 0.25 % D = 0.5 % F = 1.0 % R = Tape and Reel W = Waffle Pack IM PR O VE D PRODUCT CODE FOR EXAMPLE: ABOVE GLOBAL ORDER Y1455 12K7565 T 9 R: TYPE: VSM1506 VALUES: 12.7560 k ABSOLUTE TOLERANCE: 0.01 % TERMINATION: Lead (Pb)-free PACKAGING: Tape and Reel HISTORICAL PART NUMBER: VSM1506 12K756 TCR2 T S T (will continue to be used) VSM1506 MODEL VSM0805 VSM1206 VSM1506 VSM2010 VSM2512 12K756 TCR2 TCR RESISTANCE VALUE CHARACTERISTICS 12.756 k T S TOLERANCE TERMINATION PACKAGING S = Lead (Pb)-free B = Tin/Lead T = Tape and Reel W = Waffle Pack T = 0.01 % Q = 0.02 % A = 0.05 % B = 0.10 % C = 0.25 % D = 0.5 % F = 1.0 % T Note * For non-standard requests, please contact Application Engineering. www.vishay.com 3 For any questions, contact: foil@vishay.com Document Number: 63070 Revision: 24-May-07 Legal Disclaimer Notice Vishay Notice Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc., or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies. Information contained herein is intended to provide a product description only. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Vishay for any damages resulting from such improper use or sale. Document Number: 91000 Revision: 08-Apr-05 www.vishay.com 1