SSMMRR11DDZZ // SSMMRR33DDZZ ((ZZ--FFooiill)) UUllttrraa HHiigghh PPrreecciissiioonn ZZ--FFooiill MMoollddeedd SSuurrffaaccee MMoouunntt RReessiissttoorr with TCR down to ±0.2 ppm/°C, PCR of ±5 ppm at Rated Power, Flexible Terminations, and Load-Life Stability of ±0.005 % (50 ppm) FEATURES AND BENEFITS • Temperature coefficient of resistance (TCR): ±0.2 ppm/°C typical (–55°C to +125°C, +25°C ref.) • Tolerance: to ±0.01% • Power coefficient of resistance (PCR) “∆R due to self heating": 5 ppm at rated power Any value at any tolerance • Flexible Terminations ensure minimal stress available within resistance range transference from the PCB due to a difference in R thermal coefficient of expansions (TCE) 2 • Electrostatic discharge (ESD): at least to 25 kV R • Load-life stability: ±0.005% (70°C, 2000 h) Vin 1 - V • Resistance range: 5 Ω to 80 kΩ (for higher and lower + out values, please contact us) SMRxDZ • Power rating: to 600 mW at +70°C • Non-inductive, non-capacitive design APPLICATIONS • Current noise: –40 dB • Precision amplifiers • Audio (high end stereo • Voltage coefficient: <0.1 ppm/V • High precision equipment) • Non-inductive: <0.08 instrumentation • EB application • Non hot spot design • Medical • Military, airborne and • Terminal finishes available: lead (Pb)-free, tin/lead alloy • Automatic test space • Matched sets with TCR tacking are available upon equipment (ATE) • Pulse application request • Industrial • Measurement • For higher performances, please contact us instrumentation • Any value available within Resistance Range (e.g., 1K234) INTRODUCTION • For prototype samples, please contact The SMRxDZ is an ultra high precision molded surface foil@vpgsensors.com mountable resistor offering all the elements of precision; including low TCR, tight tolerance, long term stability, low noise, low thermal EMF, and non-measurable voltage coefficient. One of the important parameters influencing stability is the Temperature Coefficient of Resistance (TCR). Although the TCR of foil resistors is considered Table 1—Tolerance and TCR vs. Resistance Figure 1—Power Derating Curve Value (–55°C to +125°C, +25°C Ref.) –55 °C + 70 °C Standard Typical TCR and 200 Value (Ω) Tolerance(1) Max. Spread(1) %)175 (%) (ppm/°C) r ( 50 Ω to 80 kΩ ±0.01% ±0.2 ±1.8 we150 o 20 Ω to <50 Ω ±0.02% ±0.2 ±2.8 P125 10 Ω to <20 Ω ±0.05% ±0.2 ±4.8 ed 5 Ω to <10 Ω ±0.1% ±0.2 ±6.8 Rat100 Note of 75 (1) For values <5 Ω and tighter performance, contact us. nt e 50 c r Note e P 25 * This datasheet provides information about parts that are RoHS-compliant and/or parts that are non-RoHS-compliant. 0 For example, parts with lead (Pb) terminations are not RoHS –75 –25 +25 +75 +125 +175 compliant. Please see the information/tables in this datasheet Ambient Temperature (°C) for details. DDooccuummeenntt NNoo..:: 6633111188 For any questions, contact www.vishayfoilresistors.com RReevviissiioonn:: 2211--OOcctt--22001155 foil@vpgsensors.com 1

SMR1DZ / SMR3DZ (Z-Foil) extremely low, this characteristic has been further refined Voltage division with tight tracking <2 ppm/°C can be over the years. The SMRxDZ utilizes ultra high precision achieved with two randomly selected units even with a Bulk Metal® Z-Foil. large ratio between the two values. The Z-Foil technology provides a significant reduction of Our Application Engineering Department is available to the resistive element’s sensitivity to ambient temperature advise and make recommendations. For non-standard variations (TCR) and to self heating when power is applied technical requirements and special applications, please (power coefficient). contact us. Table 2—Performance Specifications Parameters Specifications Maximum Limit (1) SMR1DZ SMR3DZ SMR1DZ SMR3DZ Resistance Range 5 Ω to 33 kΩ 5 Ω to 80 kΩ 5 Ω to 10 kΩ 10 kΩ to 33 kΩ 5 Ω to 30 kΩ 30 kΩ to 80 kΩ Rated Power 0.250 W at 70°C 0.160 W at 70°C 0.6 W at 70°C 0.4 W at 70°C See Figure 1 0.125 W at 125°C 0.08 W at 125°C 0.3 W at 125°C 0.2 W at 125°C Weight 0.1143 g 0.244 g Packaging Bulk (loose) or tape and reel, per EIA-481-1 Test Conditions Maximum Limit (1) Max. Working Voltage 73 V 180 V — Max. Operating +175°C (see Figure 1) — Temperature Working Temperature –55°C to +125°C (MIL range) — Range R >100 Ω: ±0.02% (200 ppm) Thermal Shock –65°C to +150°C; 30 min; 5 cycles R ≤100 Ω: ±0.03% (300 ppm) Short Time Overload 6.25 x rated power; 5 s ±0.01% (100 ppm) Low Temperature –65°C, 24 h (no load): 45 min at rated power ±0.01% (100 ppm) Operation Dielectric Withstanding Atmospheric pressure; AC 200 V; 1 min ±0.01% (100 ppm) Voltage Insulation Resistance DC 100 V; 1 min over 10 000 MΩ Resistance to  260°C for 10 s ±0.03% Soldering Heat Moisture Resistance +65°C to –10°C; 90% to 98% RH; rated power; 240 h ±0.03% (300 ppm) Shock 100 G; Sawtooth ±0.01% (100 ppm) Vibration, High Frequency 10~2000~10 Hz; 20 G; X, Y, Z each 2.5 h ±0.01% (100 ppm) Typical Typical Load-Life Stability 0.04 W at +70°C 0.1 W at +70°C 0.005% 0.005% (2000 h) 0.25 W at +70°C 0.6 W at +70°C 0.02% 0.015% 0.125 W at +125°C 0.3 W at +125°C 0.05% max 0.05% max High Temperature 175°C; no load 2000 h ±0.1% (1000 ppm) Exposure Note (1) As shown +0.01 Ω to allow for measurement errors at low values. www.vishayfoilresistors.com For any questions, contact Document No.: 63118 2 foil@vpgsensors.com Revision: 21-Oct-2015

SMR1DZ / SMR3DZ (Z-Foil) Figure 2—Dimensions in Inches (Millimeters) Side View L TH Minimum Top View Stand Off End View VALUE (5 DIGITS) TOLERANCE P P Z-FOIL H 100R0T z INDICATOR W V (DATE CODE) - TW Bottom View LEAD (Pb)-FREE INDICATOR Model L W H P TW TH (Minimum) 0.236 ±0.012 0.126 ±0.012 0.098 ±0.012 0.051 ±0.012 0.087 ±0.004 0.039 SMR1DZ (5.99 ±0.30) (3.20 ±0.30) (2.49 ±0.30) (1.30 ±0.30) (2.21 ±0.10) (0.99) 0.287 ±0.012 0.170 ±0.012 0.110 ±0.012 0.051 ±0.012 0.095 ±0.004 0.039 SMR3DZ (7.29 ±0.30) (4.32 ±0.30) (2.79 ±0.30) (1.30 ±0.30) (2.41 ±0.10) (0.99) Figure 3—Recommended Mounting Pad Geometries in Inches (Millimeters) Reflow Solder Pads D B C E A Model Method A Min B Ref C Ref D ±0.04 (±1.02) E Ref SMR1DZ 0.110 (2.79) 0.106 0.124 (3.15) 0.337 (8.55) 0.050 Reflow SMR3DZ 0.118 (3.00) (2.69) 0.175 (4.45) 0.388 (9.86) (1.27) Per IPC-SM-782 Rev A Figure 4—Trimming to Values Figure 5—Typical TCR Curve Z-Foil (conceptual illustration) TCR Values for Different Temperature Ranges +500 Interloop +400 capacitance reduction Current path +300 in series before trimming +200 +100 ∆R Mutual Current path after trimming R 0 inductance (ppm) reduction Trimming process –100 0.05 ppm/°C didnui rceeuc trtorioe cnnhta nge rfcrehomamno gvsiehnsog r ttchinuisgr r mestnartitp ep raaiarthela ––230000 –0.1 ppm/°C 0.1 p0p.1m4 /p°Cp m/°C and increasing –400 –0.16 ppm/°C 0.2 ppm/°C resistance –500 Foil shown in black, etched spaces in white –55 –25 0 +25 +60 +75 +100 +125 Note Ambient Temperature (°C) To acquire a precision resistance value, the Bulk Metal Foil Notes chip is trimmed by selectively removing built-in “shorting bars.” • For more details, see Table 1. To increase the resistance in known increments, marked • The TCR values for <80 Ω are influenced by the areas are cut, producing progressively smaller increases in termination composition and the result is deviation from resistance. This method reduces the effect of “hot spots” and this curve. improves the long-term stability of VFR resistors. Document No.: 63118 For any questions, contact www.vishayfoilresistors.com Revision: 21-Oct-2015 foil@vpgsensors.com 3

SMR1DZ / SMR3DZ (Z-Foil) Table 3—Part Number Information NEW GLOBAL PART NUMBER: Y174510K0000T9R (preferred part number format) DENOTES PRECISION VALUE AER* Y R = Ω 0 = Standard K = kΩ 9 = Lead (Pb)-free 1 to 999 = Custom Y 1 7 4 5 1 0 K 0 0 0 0 T 9 R PRODUCT CODE RESISTANCE TOLERANCE PACKAGING 1745 = SMR1DZ T = ± 0.01 % L= Bulk Pack 1746 = SMR3DZ Q= ± 0.02 % R= Tape and Reel A= ± 0.05 % B= ± 0.1 % C= ± 0.25 % D= ± 0.5 % F = ± 1.0 % FOR EXAMPLE: ABOVE GLOBAL ORDER Y1745 10K0000 T 9 R: TYPE: SMR1DZ VALUE: 10.0 kΩ ABSOLUTE TOLERANCE: ± 0.01 % TERMINATION: Lead (Pb)-free PACKAGING: Tape and Reel HISTORICAL PART NUMBER: SMR1DZ 10K000 TCR0.2 T S T (will continue to be used) SMR1DZ 10K000 TCR0.2 T S T TCR RESISTANCE MODEL OHMIC VALUE TERMINATION PACKAGING CHARACTERISTIC TOLERANCE SMR1DZ 10.0 kΩ T = ± 0.01 % S= Lead (Pb)-free B= Bulk Pack SMR3DZ Q= ± 0.02 % B= Tin/Lead T= Tape and Reel A= ± 0.05 % B= ± 0.1 % C= ± 0.25 % D= ± 0.5 % F = ± 1.0 % Note * For non-standard requests, please contact Application Engineering. www.vishayfoilresistors.com For any questions, contact Document No.: 63118 4 foil@vpgsensors.com Revision: 21-Oct-2015

LLeeggaall DDiissccllaaiimmeerr NNoottiiccee Vishay Precision Group, Inc. DDiissccllaaiimmeerr ALL PRODUCTS, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE. Vishay Precision Group, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, “VPG”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. The product specifications do not expand or otherwise modify VPG’s terms and conditions of purchase, including but not limited to, the warranty expressed therein. VPG makes no warranty, representation or guarantee other than as set forth in the terms and conditions of purchase. To the maximum extent permitted by applicable law, VPG disclaims (i) any and all liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special, consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular purpose, non-infringement and merchantability. Information provided in datasheets and/or specifications may vary from actual results in different applications and performance may vary over time. Statements regarding the suitability of products for certain types of applications are based on VPG’s knowledge of typical requirements that are often placed on VPG products. It is the customer’s responsibility to validate that a particular product with the properties described in the product specification is suitable for use in a particular application. You should ensure you have the current version of the relevant information by contacting VPG prior to performing installation or use of the product, such as on our website at vpgsensors.com. No license, express, implied, or otherwise, to any intellectual property rights is granted by this document, or by any conduct of VPG. The products shown herein are not designed for use in life-saving or life-sustaining applications unless otherwise expressly indicated. Customers using or selling VPG products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify VPG for any damages arising or resulting from such use or sale. Please contact authorized VPG personnel to obtain written terms and conditions regarding products designed for such applications. Product names and markings noted herein may be trademarks of their respective owners. Copyright Vishay Precision Group, Inc., 2014. All rights reserved. Document No.: 63999 www.vpgsensors.com Revision: 15-Jul-2014 1