VSMP Series (0805, 1206, 1506, 2010, 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.) Tolerance: to 0.01 % Power coefficient R due to self heating: 5 ppm at rated power Power rating: to 750 mW at + 70 C Load life stability: to 0.005 % at 70 C, 2000 h at rated power Top View Resistance range: 10 to 125 k (for higher and lower values, please contact us) INTRODUCTION Vishay Foil resistors are not restricted to standard values, we can supply specific as required values at no extra cost VSMP Series is the industrys first device to provide high or delivery (e.g. 1K2345 vs. 1K) rated power, excellent load life stability along with extremely Fast thermal stabilization < 1 s low TCR all in one resistor. Electrostatic discharge (ESD) up to 25 000 V One of the most important parameters influencing stability is Short time overload: 0.005 % the temperature coefficient of resistance (TCR). Although the Non inductive, non capacitive design TCR of foil resistors is considered extremely low, this Rise time: 1 ns effectively no ringing characteristic has been further refined over the years. The Current noise: - 42 dB VSMP Series utilizes ultra high precision Bulk Metal Z-foil. Voltage coefficient < 0.1 ppm/V The Z-foil technology provides a significant reduction of the Non inductive: < 0.08 H resistive elements sensitivity to ambient temperature Non hot spot design variations (TCR) and to self heating when power is applied Terminal finishes available: lead (Pb)-free, tin/lead alloy (power coefficient). Along with the inherently low PCR and Compliant to RoHS directive 2002/95/EC TCR, Z-foil technology also provides remarkably improved Matched sets are available on request load life stability, low noise and availability of tight tolerance. Prototype quantities available in just 5 working days or sooner. For more information, please contact The VSMP has a full wraparound termination which ensures foil vishay.com safe handling during the manufacturing process, as well as For better performances please contact us providing stability during multiple thermal cyclings. APPLICATIONS Our application engineering department is available to Automatic test equipment (ATE) advise and make recommendations. For non-standard High precision instrumentation technical requirements and special applications, please Laboratory, industrial and medical contact us using the e-mail address in the footer below. Audio EB applications (electron beam scanning and recording TABLE 1 - TOLERANCE AND TCR VS. equipment, electron microscopes) (1) RESISTANCE VALUE Down hole instrumentation (- 55 C to + 125 C, + 25 C Ref.) Communication RESISTANCE TYPICAL TCR AND TOLERANCE FIGURE 1 - POWER DERATING CURVE VALUE MAX. SPREAD (%) () (ppm/C) - 55 C + 70 C 100 250 to 125K 0.01 0.2 1.8 100 to < 250 0.02 0.2 1.8 75 50 to < 100 0.05 0.2 2.8 50 25 to < 50 0.1 0.2 3.8 10 to < 25 0.25 0.2 3.8 25 Note (1) 0 For tighter performances and non-standard values up to 150K, - 75 - 50 - 25 0 + 25 + 50 + 75 + 100 + 125 + 150 + 175 please contact Vishay application engineering using the e-mail addresses in the footer below. Ambient Temperature (C) * Pb containing terminations are not RoHS compliant, exemptions may apply Document Number: 63060 For any questions, contact: foil vishay.com www.vishay.com Revision: 24-Mar-09 1 Percent of Rated Power VSMP Series (0805, 1206, 1506, 2010, 2512) (Z-Foil) Vishay Foil Resistors FIGURE 2 - TRIMMING TO VALUES FIGURE 3 - TYPICAL RESISTANCE/ (Conceptual Illustration) TEMPERATURE CURVE + 500 + 400 + 300 + 200 Current Path Interloop Capacitance + 100 Before Trimming R Reduction in Series R 0 (ppm) - 100 0.05 ppm/C Current Path - 200 After Trimming - 0.1 ppm/C 0.1 ppm/C Mutual Inductance Trimming Process - 300 Reduction due 0.14 ppm/C Removes this Material to Change in - 400 from Shorting Strip Area - 0.16 ppm/C 0.2 ppm/C Current Direction Changing Current Path - 500 and Increasing - 55 - 25 0 + 25 + 60 + 75 + 100 + 125 Resistance Ambient Temperature (C) and TCR Chord Slopes for 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 L 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) 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) 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 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 100 mW () (mg) 0805 at + 70 C ( PR ) 0.01 % at 200 mW 0805 200 40 V 10 to 8K 6 0.005 % at 150 mW 1206, 1506 0.01 % at 300 mW 1206 300 87 V 10 to 25K 11 0.005 % at 200 mW 1506 300 95 V 10 to 30K 12 2010 0.01 % at 500 mW 2010 500 187 V 10 to 70K 27 0.005 % at 500 mW 2512 2512 750 220 V 10 to 125K 40 0.01 % at 750 mW TABLE 5 - PERFORMANCES MIL-PRF-55342 TYPICAL MAXIMUM TEST OR CONDITIONS (1) CHARACTERISTIC E R LIMITS R LIMITS R LIMITS Thermal Shock, 100 x (- 65 C to + 150 C) 0.1 % 0.005 % (50 ppm) 0.01 % (100 ppm) Low Temperature Operation, - 65 C, 45 min at P 0.1 % 0.005 % (50 ppm) 0.01 % (100 ppm) nom Short Time Overload, 6.25 x Rated Power, 5 s 0.1 % 0.005 % (50 ppm) 0.01 % (100 ppm) High Temperature Exposure, + 150 C, 100 h 0.1 % 0.01 % (100 ppm) 0.02 % (200 ppm) Resistance to Soldering Heat 0.2 % 0.005 % (50 ppm) 0.01 % (100 ppm) Moisture Resistance 0.2 % 0.005 % (50 ppm) 0.02 % (200 ppm) Load Life Stability + 70 C for 2000 h at Rated Power 0.5 % 0.005 % (50 ppm) 0.01 % (100 ppm) Note (1) As shown + 0.01 to allow for measurement errors at low values. www.vishay.com For any questions, contact: foil vishay.com Document Number: 63060 2 Revision: 24-Mar-09