DSMZ (Z-Foil) Ultra High Precision Bulk Metal Z-Foil Surface Mount Voltage Divider, TCR Tracking of < 0.1 ppm/C, PCR of 5 ppm at Rated Power and Stability of 0.005 % (50 ppm) FEATURES Temperature coefficient of resistance (TCR): Absolute: 0.05 ppm/C typ. (0 C to + 60 C) 0.2 ppm/C typ. (- 55 C to + 125 C, + 25 C Ref.) Tracking: 0.1 ppm/C typical Power coefficient tracking R due to self heating: 5 ppm at rated power INTRODUCTION Power rating at 70 C: entire package: 0.1 W, Bulk Metal Z-Foil technology out-performs all other resistor each resistor: 0.05 W technologies available today for applications that require Tolerance: absolute: 0.02 % match: 0.01 % ultra-high precision and ultra-high stabilitly. Ratio stability: 0.005 % (0.05 W at 70 C, 2000 h) Resistance range: 100 to 10 k per resistor The Z-Foil technology provides a significant reduction of the Large variety of resistance ratios: 1:100 resistive elements sensitivity to ambient temperature Foil resistors are not restricted to standard values/ ratios variations (TCR) and to self heating when power is applied specific as required values/ratios can be supplied at no (power coefficient). extra cost or delivery (e.g. 1K234/2K345 vs. 1K/2K) The DSMZ offers low TCR (both absolute and tracking), low Electrostatic discharge (ESD) up to 25 000 V PCR, excellent load life stability, tight tolerance match, Short time overload 0.005 % excellent ratio stability, low thermal EMF, and low current Non-inductive, non-capacitive design noise - all in one package. Rise time: 1 ns effectively no ringing The DSMZ surface mount divider provides a matched pair of Current noise: < - 40 dB Bulk Metal Z-Foil resistors in a small epoxy molded Thermal EMF: 0.05 V/C typical package. The electrical specification of this integrated Voltage Coefficient: < 0.1 ppm/V construction offers improved performance and better real Non Inductive: < 0.08 H estate utilization over discrete resistors and matched pairs. Non Hot Spot Design Terminals: silver coated copper alloy Our 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 us. foil vpgsensors.com For better performances, please contact application TABLE 1 - RESISTANCE VALUES AND engineering (1) TOLERANCES APPLICATIONS (2) R2 RESISTANCE VALUES 100 to 10 k per resistor Instrumentation amplifiers ABSOLUTE TOLERANCE 0.02 %, 0.05 %, 0.1 % Bridge networks R1 EACH RESISTOR Vin - Differential amplifiers RESISTANCE Vout 0.01 %, 0.02 %, 0.05 % + Ratio arms in bridge circuits TOLERANCE MATCH Medical and test equipment DSMZ Absolute: (typical and maximum TCR spread): 0.2 2.0 ppm/C Military Airborne etc. Tracking: (maximum) - 55 C to + 125 C (+ 25 C reference) For R1/R2 = 1 0.5 ppm/C FIGURE 2 - POWER DERATING CURVE For 1 < R1/R2 10 1.0 ppm/C 110 For 10 < R1/R2 100 2.0 ppm/C 100 Notes 90 (1) Tighter performances are available 80 (2) 100 to 12 k per resistor available in DSM 70 60 50 FIGURE 1 - SCHEMATIC 40 30 20 10 R R 1 2 0 - 60 - 40 - 20 0 20 40 60 80 100 120 140 OPTION 1 OPTION 2 - 55 70 125 SAME OHMIC VALUE, RESISTOR PAIR Ambient Temperature (C) SAME ABSOLUTE TOLERANCE R /R - DIFFERENT VALUES 1 2 * Pb containing terminations are not RoHS compliant, exemptions may apply Document Number: 63121 For any questions, contact www.vishayfoilresistors.com Revision: 4-Mar-15 foil vpgsensors.com 1 Percent of Rated Wattage DSMZ (Z-Foil) FIGURE 4 - TYPICAL RESISTANCE/ FIGURE 3 - TRIMMING TO VALUES TEMPERATURE CURVE (Conceptual Illustration) (For more details, see table 1) + 500 + 400 + 300 Current Path Interloop Capacitance Before Trimming + 200 Reduction in Series + 100 R Current Path 0 R After Trimming (ppm) Mutual Inductance - 100 0.05 ppm/C Trimming Process Reduction due Removes this Material - 200 to Change in - 0.1 ppm/C 0.1 ppm/C from Shorting Strip Area Current Direction - 300 Changing Current Path 0.14 ppm/C and Increasing - 400 - 0.16 ppm/C 0.2 ppm/C Resistance - 500 - 55 - 25 0 + 25 + 60 + 75 + 100 + 125 Ambient Temperature (C) and TCR Chord Slopes for Note: Foil shown in black, etched spaces in white Different Temperature Ranges FIGURE 5 - 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 Notes (1) If the resistance value of R1 and R2 (1) (2) 10K Q 10K contains more than 6 characters B0219 together, the VCODE will be printed instead (see Resistance Value Code List for Popular Ratios Table) followed by the ratio tolerance code. (2) R1between PIN1 and PIN3 1 2 DATE CODE STAND OFF 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 FIGURE 6 - RECOMMENDED LAND PATTERN 0.063 0.004 (1.6 0.1) 0.100 0.004 (2.54 0.1) www.vishayfoilresistors.com For any questions, contact Document Number: 63121 2 foil vpgsensors.com Revision: 4-Mar-15 H TH 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