DSM High Precision Bulk Metal Foil Surface Mount Voltage Divider, TCR Tracking of < 0.5 ppm/C, Tolerance Match of 0.01 % and Stability of 0.005 % (50 ppm) FEATURES Temperature coefficient of resistance (TCR): Absolute: 2 ppm/C typical (- 55 C to + 125 C, + 25 C ref.) Tracking: 0.5 ppm/C typical Tolerance: absolute: 0.02 % match: 0.01 % Power rating: at 70 C: entire package: 0.1 W each resistor: 0.05 W INTRODUCTION Ratio stability: 0.005 % (0.05 W at 70 C, 2000 h) Bulk Metal Foil (BMF) technology out-performs all other Resistance range: 100 to 12 k per resistor resistor technologies available today for applications that Large variety of resistance ratios: 1:120 require high precision and high stability. Bulk Metal Foil resistors are not restricted to standard This technology has been invented, patented and pioneered values/ratios specific as required values/ratios can be by Vishay Foil Resistors (VFR). Products based on this supplied at no extra cost or delivery (e.g. 1K234/2K345 vs. technology are the most suitable for a wide range of 1K/2K) appilcations. Thermal stabilization time < 1 s (nominal value achieved within 10 ppm of steady state value) BMF technology allows the production of customer oriented Electrostatic discharge (ESD) at least to 25kV products designed to satisfy challenging and specific technical requirements. Model DSM offers low TCR (both Short time overload: 0.005 % absolute and tracking), excellent load life stability, tight Non inductive, non capacitive design tolerance, excellent ratio stability, and low current noise, all in Rise time: 1 ns effectively no ringing one package. Current noise: < 0.010 V /V of applied voltage RMS ( - 40 dB) The DSM surface mount divider provides a matched pair of Bulk Metal Foil resistors in a small epoxy molded package. Voltage coefficient: 0.1 ppm/V The electrical specification of this integrated construction Non inductive: 0.08 H offers improved performance and better real estate utilization Non hot spot design over discrete resistors and matched pairs. Terminals: silver coated copper alloy (see Table 5) VFRs application engineering department is available to Compliant to RoHS directive 2002/95/EC advise and make recommendations. For non-standard Prototype quantities available in just 5 working days technical requirements and special applications, please or sooner. For more information, please contact contact foil vpgsensors.com. foil vpgsensors.com For better performances, please see DSMZ datasheet (Z-Foil) FIGURE 1 - SCHEMATIC R R 1 2 OPTION 1 OPTION 2 SAME OHMIC VALUE, RESISTOR PAIR SAME ABSOLUTE TOLERANCE R /R - DIFFERENT VALUES 1 2 TABLE 1 - MODEL DSM SPECIFICATIONS ABSOLUTE TCR TOLERANCE RESISTANCE MODEL (- 55 C TO + 125 C, + 25 C REF.) TCR TRACKING RATIO ABSOLUTE MATCH TYPICAL + MAX. SPREAD R1/R2 = 1 1.0 ppm/C 0.02 % 0.01 % DSM 2 ppm/C 3 ppm/C 1 < R1/R2 10 2.0 ppm/C 0.05 % 0.02 % 10 < R1/R2 120 3.0 ppm/C 0.1 % 0.05 % * Pb containing terminations are not RoHS compliant, exemptions may apply Document Number: 63088 For any questions, contact www.vishayfoilresistors.com Revision: 12-May-15 foil vpgsensors.com 1DSM FIGURE 2 - POWER DERATING CURVE FIGURE 3 - TYPICAL RESISTANCE/ TEMPERATURE CURVE 110 (For more details, see table 1) 100 90 + 150 80 70 + 100 60 2 ppm/C + 50 50 (+ 25 C reference) R 40 R 0 30 (ppm) 20 - 50 10 - 100 0 - 60 - 40 - 20 0 20 40 60 80 100 120 140 - 150 - 55 70 125 Ambient Temperature (C) - 200 - 50 - 25 0 + 25 + 50 + 75 + 100 + 125 - 55 Ambient Temperature (C) FIGURE 4 - TRIMMING TO VALUES (Conceptual Illustration) FIGURE 5 - RECOMMENDED LAND PATTERN Current Path Interloop Capacitance Before Trimming Reduction in Series 0.063 0.004 Current Path (1.6 0.1) After Trimming Mutual Inductance Trimming Process Reduction due Removes this Material to Opposing from Shorting Strip Area Current in Changing Current Path Adjacent Lines and Increasing Resistance 0.100 0.004 (2.54 0.1) Note: Foil shown in black, etched spaces in white FIGURE 6 - DIMENSIONS AND IMPRINTING w L SIDE VIEW FRONT VIEW t TW TW P P S TOP VIEW BOTTOM VIEW RATIO TOLERANCE CODE VALUE R2 VALUE R1 3 1 Notes (1) If the resistance value of R1 and R2 (1) (2) 10K Q 10K contains more than 6 characters 3 B0219 together, the VCODE will be printed instead (see Resistance Value Code List for Popular Ratios Table) 2 followed by the ratio tolerance code. (2) R1between PIN1 and PIN3 1 2 STAND OFF DATE CODE R2between PIN2 and PIN3. DIMENSIONS L W H P TW TH S t INCHES 0.160 0.008 0.106 0.008 0.063 0.008 0.031 0.005 0.031 0.004 0.043 0.008 0.100 0.008 0.005 0.002 MILLIMETERS 4.06 0.20 2.69 0.20 1.60 0.20 0.79 0.13 0.79 0.10 1.09 0.20 2.54 0.20 0.13 0.05 www.vishayfoilresistors.com For any questions, contact Document Number: 63088 2 foil vpgsensors.com Revision: 12-May-15 H TH Percent of Rated Wattage 0.040 0.004 (1.02 0.1) 0.035 0.004 (0.89 0.1) 0.071 0.004 (1.8 0.1) 0.100 0.004 (2.54 0.1) TW