VSMP0603 (Z-Foil) Vishay Foil Resistors Ultra High Precision Foil Wraparound Surface Mount Chip Resistor with Temperature Coefficient of Resistance of 0.05 ppm/C, Load Life Stability to 0.005 % (50 ppm) and ESD Immunity up to 25 kV 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.) Top View Tolerance: to 0.01 % Power coefficient R due to self heating: Vishay Foil resistors are not restricted to standard 5 ppm at rated power values, we can supply specific as required values at no extra cost or delivery (e.g. 1K234 vs. 1K). Power rating: to 100 mW at + 70 C Load life stability: to 0.005 % at 70 C, 2000 h at rated power INTRODUCTION Resistance range: 100 to 5 k VSMP series is the industrys first device to provide high Electrostatic discharge (ESD) up to 25 000 V rated power, excellent load life stability along with extremely Short time overload: 0.005 % low TCR all in one resistor. Non inductive, non capacitive design One of the most important parameters influencing stability is Rise time: 1 ns effectively no ringing the temperature coefficient of resistance (TCR). Although the Special design which reduces circuit signal distortion TCR of foil resistors is considered extremely low, this Current noise: - 40 dB characteristic has been further refined over the years. The 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 element s sensitivity to ambient temperature Non hot spot design variations (TCR) and to self heating when power is applied Terminal finishes available: lead (Pb)-free (power coefficient). Along with the inherently low PCR and tin/lead alloy 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 samples available from 72 h. For more The VSMP0603 has a full wraparound termination which information, please contact foil vishaypg.com ensures safe handling during the manufacturing process, as For better performances please contact us well as 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 contact us using the e-mail address in the footer below. Laboratory, industrial and medical 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 5K 0.01 0.2 1.8 75 100 to < 250 0.02 0.2 1.8 50 Note (1) For tighter performances, please contact Vishay application 25 engineering using the e-mail address in the footer below. 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 Document Number: 63141 For any questions, contact: foil vishaypg.com www.foilresistors.com Revision: 26-Mar-10 1 Percent of Rated Power VSMP0603 (Z-Foil) Vishay Foil Resistors FIGURE 2 -TRIMMING TO VALUES FIGURE 3 -TYPICAL TCR CURVE Z-FOIL (Conceptual Illustration) + 500 + 400 + 300 + 200 Current Path + 100 Interloop Capacitance R Before Trimming Reduction in Series R 0 (ppm) - 100 0.05 ppm/C Current Path - 200 - 0.1 ppm/C 0.1 ppm/C After Trimming Mutual Inductance - 300 0.14 ppm/C Trimming Process Reduction due Removes this Material - 400 to Opposing - 0.16 ppm/C 0.2 ppm/C from Shorting Strip Area Current in - 500 Changing Current Path Adjacent Lines and Increasing - 55 - 25 0 + 25 + 60 + 75 + 100 + 125 Resistance Ambient Temperature (C) 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) Bottom View for Mounting Uncoated Ceramic L W T D L W D CHIP SIZE THICKNESS MAXIMUM 0.005 (0.13) 0.005 (0.13) 0.005 (0.13) 0603 0.063 (1.60) 0.032 (0.81) 0.025 (0.64) 0.011 (0.28) Note Land pattern dimensions are per IPC-782. TABLE 3 - PERFORMANCES TEST OR CONDITIONS MIL-PRF-55342 TYPICAL R LIMITS MAXIMUM R LIMITS PER MIL-PRF-55342 CHARACTERISTIC E R LIMITS Thermal shock: 0.2 % 0.005 % (50 ppm) 0.01 % (100 ppm) 100 x (- 65 C to + 150 C) Low temperature operation: 0.1 % 0.005 % (50 ppm) 0.01 % (100 ppm) - 65 C, 45 min, rated power Short time overload: 0.1 % 0.005 % (50 ppm) 0.01 % (100 ppm) 6.25 x rated power, 5 s High temperature exposure: 100 h, 150 C 0.1 % 0.01 % (100 ppm) 0.03 % (300 ppm) Resistance to soldering heat 0.2 % 0.005 % (50 ppm) 0.02 % (200 ppm) Moisture resistance 0.2 % 0.03 % (300 ppm) 0.1 % (1000 ppm) Load life stability + 70 C for 2000 h 0.5 % 0.005 % (50 ppm) 0.01 % (100 ppm) at rated power Note As shown + 0.01 to allow for measurement errors at low values. www.foilresistors.com For any questions, contact: foil vishaypg.com Document Number: 63141 2 Revision: 26-Mar-10