VSMP Series (0603, 0805, 1206, 1506, 2010, 2018, 2512) (Z-Foil) Vishay Foil Resistors Ultra High Precision Foil Wraparound Surface Mount Chip Resistor with TCR of 0.05 ppm/C and Power Coefficient of 5 ppm at Rated Power and Load Life Stability of 0.005 % (50 ppm) FEATURES Temperature coefficient of resistance (TCR): 0.05 ppm/C typical (0 C to + 60 C) 0.2 ppm/C typical (- 55 C to + 125 C, + 25 C ref.) Resistance tolerance: to 0.01 % Power coefficient R due to self heating: 5 ppm at rated power Power rating: to 750 mW at + 70 C (see table 3) Top View Load life stability: to 0.005 % at 70 C, 2000 h at rated (for date code print specification please refer to table 2) power Resistance range: 5 to 125 k(for lower or higher values, please contact us) INTRODUCTION Vishay Foil resistors are not restricted to standard values, VSMP Series is the industrys first device to provide high we can supply specific as required values at no extra cost rated power and excellent load life stability along with or delivery (e.g. 1K2345 vs. 1K) extremely low TCR all in one resistor. Thermal stabilization time < 1 s One of the most important parameters influencing stability is (nominal value achieved within 10 ppm of steady state value) the Temperature Coefficient of Resistance (TCR). Although Electrostatic discharge (ESD) at least to 25 kV the TCR of foil resistors is considered extremely low, this Short time overload: 0.005 % characteristic has been further refined over the years. The Non inductive, non capacitive design VSMP Series utilizes ultra high precision Bulk Metal Z-Foil. The Z-Foil technology provides a significant reduction of the Rise time: 1 ns effectively no ringing resistive elements sensitivity to ambient temperature Current noise: 0.010 V /V of applied voltage RMS (< - 40 dB) variations (TCR) and to self heating when power is applied Voltage coefficient < 0.1 ppm/V (Power Coefficient of Resistance, or PCR). Along with the Non inductive: < 0.08 H inherently low PCR and TCR, Z-Foil technology also provides remarkably improved load life stability, low noise Non hot spot design and tight tolerances. Terminal finishes available: lead (Pb)-free, tin/lead alloy Matched sets are available on request The VSMP resistor has a full wraparound termination which Prototype quantities available in just 5 working days assures secure contact during the manufacturing process, or sooner. For more information, please contact as well as providing stability during multiple thermal cyclings. foil vishaypg.com Vishay Foil Resistors (VFR) application engineering department is available to advise and make recommendations. For non-standard technical requirements and special applications, please contact VFR using the e-mail address in the footer below. TABLE 1 - TOLERANCE AND TCR VS. FIGURE 1 - POWER DERATING CURVE (1) RESISTANCE VALUE - 55 C + 70 C (- 55 C to + 125 C, + 25 C Ref.) 100 RESISTANCE TYPICAL TCR AND TOLERANCE 75 VALUE MAX. SPREAD (%) () (ppm/C) 50 250 to 125K 0.01 0.2 1.8 25 100 to < 250 0.02 0.2 1.8 50 to < 100 0.05 0.2 2.8 0 25 to < 50 0.1 0.2 3.8 - 75 - 50 - 25 0 + 25 + 50 + 75 + 100 + 125 + 150 + 175 10 to < 25 0.25 0.2 3.8 Ambient Temperature (C) 5 to < 10 0.5 0.2 7.8 * Pb containing terminations are not RoHS compliant exemptions Note may apply (1) For tighter performances and non-standard values lower than 5 and above 125K, please contact VFRs application engineering using the e-mail addresses in the footer below Document Number: 63060 For any questions, contact: foil vishaypg.com www.vishayfoilresistors.com Revision: 22-May-2012 1 Percent of Rated Power VSMP Series (0603, 0805, 1206, 1506, 2010, 2018, 2512) (Z-Foil) Vishay Foil Resistors FIGURE 2 - TRIMMING TO VALUES FIGURE 3 - TYPICAL RESISTANCE/ (Conceptual Illustration) TEMPERATURE CURVE + 400 + 300 + 200 + 100 R Current Path Interloop Capacitance 0 R Before Trimming Reduction in Series (ppm) - 100 0.05 ppm/C - 200 Current Path - 0.1 ppm/C 0.1 ppm/C After Trimming - 300 Mutual Inductance 0.14 ppm/C Trimming Process - 400 Reduction due - 0.16 ppm/C 0.2 ppm/C Removes this Material to Change in - 500 from Shorting Strip Area Current Direction Changing Current Path - 55 - 25 0 + 25 + 60 + 75 + 100 + 125 and Increasing Ambient Temperature (C) and TCR Chord Slopes for Resistance Different Temperature Ranges Note Note: Foil shown in black, etched spaces in white The TCR values for < 100 are influenced by the termination composition and result in deviation from this curve TABLE 2 - DIMENSIONS AND LAND PATTERN in Inches (Millimeters) Top View Recommended Land Pattern 2 Date Code L (Year/Week) Footprint X G W T Z D CHIP L W THICKNESS D (1) (1) (1) Z G X SIZE 0.005 (0.13) 0.005 (0.13) MAXIMUM 0.005 (0.13) 0603 0.063 (1.60) 0.032 (0.81) 0.025 (0.64) 0.011 (0.28) 0.102 (2.59) 0.031 (0.78) 0.031(0.78) 0805 0.080 (2.03) 0.050 (1.27) 0.025 (0.64) 0.015 (0.38) 0.122 (3.10) 0.028 (0.71) 0.050 (1.27) 1206 0.126 (3.20) 0.062 (1.57) 0.025 (0.64) 0.020 (0.51) 0.175 (4.45) 0.059 (1.50) 0.071 (1.80) 1506 0.150 (3.81) 0.062 (1.57) 0.025 (0.64) 0.020 (0.51) 0.199 (5.05) 0.083 (2.11) 0.071 (1.80) 2010 0.198 (5.03) 0.097 (2.46) 0.025 (0.64) 0.025 (0.64) 0.247 (6.27) 0.115 (2.92) 0.103 (2.62) 2018 0.204 (5.18) 0.184 (4.67) 0.025 (0.64) 0.018 (0.46) 0.248 (6.3) 0.146 (3.71) 0.184 (4.67) 2512 0.249 (6.32) 0.127 (3.23) 0.025 (0.64) 0.032 (0.81) 0.291 (7.39) 0.150 (3.81) 0.127 (3.23) Note (1) Land Pattern Dimensions are per IPC-7351A (2) The date code printing applies to all resistor sizes except for 0603 TABLE 3 - SPECIFICATIONS TABLE 4 - LOAD LIFE STABILITY (+ 70 C for 2000 h) RATED MAX. RESISTANCE MAXIMUM CHIP POWER WORKING CHIP SIZE MAXIMUM R LIMITS RANGE WEIGHT SIZE (mW) VOLTAGE 0.005 % at 50 mW ()* (mg) 0603 at + 70 C ( PR ) 0.01 % at 100 mW 0603 100 20 V 100 to 4K 3 0.005 % at 100 mW 0805 0.01 % at 200 mW 0805 200 40 V 5to 8K 6 0.005 % at 150 mW 1206 300 87 V 5to 25K 11 1206, 1506 0.01 % at 300 mW 1506 300 95 V 5to 30K 12 0.005 % at 200 mW 2010 2010 500 187 V 5to 70K 27 0.01 % at 500 mW 0.005 % at 500 mW 2018 750 122 V 5to 20K 40 2018 0.01 % at 750 mW 2512 750 220 V 5to 125K 40 0.005 % at 500 mW 2512 * For non standard values please contact VFRs application 0.01 % at 750 mW engineering using the e-mail addresses in the footer below. www.vishayfoilresistors.com For any questions, contact: foil vishaypg.com Document Number: 63060 2 Revision: 22-May-2012