SMNZ (Z-Foil)SMNZ (Z-Foil) Ultra High Precision Z-Foil Surface Mount 4 Resistor Network Ultra High Precision Z-Foil Surface Mount 4 Resistor Network Dual-In-Line Package Dual-In-Line Package with TCR Tracking of 0.1 ppm/C, PCR Tracking of 5 ppm at Rated Power, and Tolerance Match of 0.01% FEATURES Temperature coefficient of resistance (TCR): Absolute: 0.05 ppm/C typical (0C to +60C) 0.2ppm/C typical (-55C to +125C, +25C Ref.) (see table 1) Tracking: 0.1 ppm/C typical (see table 1) Tolerance match: 0.01% Power coefficient tracking R2-R1 due to self heating: 5 ppm at rated power INTRODUCTION Power rating: at 70C Any value and any ratio available within Entire package: 0.4 W resistance range Each resistor: 0.1 W The Z-Foil technology provides a significant reduction Ratio stability: 0.005% (0.1 W at 70C, 2000 h) of the resistive components sensitivity to ambient Large variety of resistance ratios temperature variations (TCR) and applied power changes (PCR). 0.05 ppm/C Absolute TCR removes errors due to Electrostatic discharge (ESD) above 25 000 V temperature gradients. Short time overload 0.0025% Model SMNZ offers extremely low TCR (absolute and Non-inductive, non-capacitive design tracking), excellent load life stability, tight tolerance Rise time: 1 ns without ringing (absolute and matching), excellent ratio stability, low Current noise: <40 dB current noise, low voltage coefficient and non sensitivity Voltage coefficient <0.1 ppm/V to ESD all in the same resistor. Non-inductive: <0.08 H The SMNZ surface mount network is made up of 4 Non hot spot design independent Bulk Metal Z-Foil resistors in a small standard molded epoxy package with 50 MIL lead pitch Terminal Finishes available: lead (Pb)-free tin/lead alloy (JEDEC MS-012 package). For better performances please contact us The electrical specification of this integrated construction Any value available within resistance range offers improved performance and better real estate (e.g., 1K2345) utilization over discrete resistors and matched sets. The Prototype samples available from 48 h. For more resistor may be used independently or as divider pairs. information, please contact: foil vpgsensors.com Our application engineering department is available to APPLICATIONS advise and make recommendations. For non-standard technical requirements and special applications, Instrumentation amplifiers please contact us. Bridge networks Differential amplifiers Figure 1 Schematics Ratio arms in bridge circuits Medical and test equipment Military R1 R1 R1 R1 Airborne, etc OPTION 1 R2 FOUR RESISTORS, SAME OHMIC VALUE SAME ABSOLUTE TOLERANCE R1 V1 - Vout + R1 R2 R2 R1 V2 R1 SMNZ OPTION 2 R2 TWO RESISTOR PAIRS R1/R2 R2/R1 Note 1. Different schematics are available (R1, R2, R3, R4) Note * This datasheet provides information about parts that are RoHS-compliant and/or parts that are non-RoHS-compliant. For example, parts with lead (Pb) terminations are not RoHS compliant. Please see the information/tables in this datasheet for details. 4150-EN4150-EN For any questions, contact www.vishayfoilresistors.com Rev 22-Oct-2020Rev 22-Oct-2020 foil vpgsensors.com 1SMNZ (Z-Foil)SMNZ (Z-Foil) Table 1 Model SMNZ Specifications ABSOLUTE TCR TCR TRACKING TOLERANCE RESISTANCE RESISTANCE MODEL (55C TO +125C, +25C REF.) (1) VALUES RATIO MAX. ABSOLUTE MATCH (TYPICAL + MAX. SPREAD) R1/R2 = 1 0.5 ppm/C 0.02% 0.01% 100 to1 k 0.22.8 SMNZ 1 <R1/R2 10 1.0 ppm/C 0.05% 0.02% 1 k to 10 k 0.21.8 10 <R1/R2 100 2.0 ppm/C 0.1% 0.05% Note (1) SMN (Classic Foil) available with values up to 20 k Figure 2 Power Derating Curve Figure 4 Typical TCR Curve Z-Foil +500 110 +400 100 90 +300 80 +200 70 +100 R 60 R 0 50 (ppm) 100 0.05 ppm/C 40 200 30 0.1 ppm/C 0.1 ppm/C 20 300 0.14 ppm/C 10 400 0.16 ppm/C 0.2 ppm/C 0 60 40 20 020406080 100 120 140 160 500 55 70 125 55 25 0 +25 +60+75 +100 +125 Ambient Temperature (C) Ambient Temperature (C) Figure 3 Dimensions and Imprinting Figure 5 Trimming to Values Example in inches (millimeters) Interloop 0.008 0.001 capacitance (0.20 0.025) Current path reduction TOLERANCE MATCH before trimming 0.0165 0.0025 0.050 in series (0.42 0.064) (1.27) VALUE R1 VALUE R2 Mutual Current path after trimming 0.028 0.001 inductance SMNZ (0.71 0.025) reduction Trimming process due to change (1) removes this material 10K Q 5K0 in current from shorting strip area B0219 direction changing current path and increasing DATE resistance 0.197 0.005 CODE (5.00 0.13) Foil shown in black, etched spaces in white 2 - 6 Note To acquire a precision resistance value, the Bulk Metal Foil 0.068 0.005 (1.73 0.13) 0.0075 0.0025 chip is trimmed by selectively removing built-in shorting bars. (0.191 0.064) To increase the resistance in known increments, marked Seating areas are cut, producing progressively smaller increases in Plane resistance. This method reduces the effect of hot spots and Note improves the long-term stability of Bulk Metal Foil resistors. (1) If the resistance value of R1 and R2 contains more than 6 characters together, the VCODE will be printed instead (see Resistance Value Code List for Popular Ratios Table) followed by the ratio tolerance code. Figure 6 Land Pattern in inches (millimeters) D Z G X Y C D E 0.283 0.102 0.024 0.095 0.197 0.150 0.050 MINIMUM (7.19) (2.59) (0.61) (2.41) (5.00) (3.81) (1.27) C Z G Y 0.291 0.110 0.032 MAXIMUM REFERENCE (7.39) (2.79) (0.81) EX www.vishayfoilresistors.com For any questions, contact 4150-EN 2 foil vpgsensors.com Rev 22-Oct-2020 0.157 (3.99) Percent of Rated Wattage 0.246 0.0004 (6.25 0.1)