MR / MRS / TMR Series Stackpole Electronics, Inc. Low Resistance Value Resistor – Molded 2 and 4 Leads Resistive Product Solutions Features: • Metal element resistors • Tinned copper leads • Low temperature coefficient • Molded bodies • TMR – Kelvin Bridge Test • MRS high stability version • Cut and formed product is available on selected sizes - contact Stackpole for details • RoHS compliant, lead free and halogen free Electrical Specifications Ohmic Range (Ω) and Power Rating Type / Code Short Time Overload Dielectric Strength TCR (ppm/ºC) Tolerance (W) @ 70 ºC 1%, 5% MR1(2) 1 0.01 - 0.1 MR3(3) 3 0.005 - 0.2 ± 50 to ± 400 (1) MR5(4) 5 5 seconds at 5 0 0 V A C 0.005 - 0.3 5 X rated power MR10 10 0.01 - 0.5 TMR3 3 0.005 - 0.2 ± 40 TMR5 5 0.005 - 0.3 (1) TCR is value dependent. Contact Stackpole for specific data. (2) MR1 values 0.05 Ω and below are non-magnetic and non-inductive. (3) MR3 values 0.1 Ω and below are non-magnetic and non-inductive. (4) MR5 values 0.15 Ω and below are non-magnetic and non-inductive. Mechanical Specifications MR TMR E A B C D Type / Code Lead Spacing U n i t Body Length Body Diameter Lead Length (Bulk)(1) Lead Diameter (Ref.) 0.385 ± 0.015 0.135 ± 0.015 1.375 ± 0.125 0.032 ± 0.002 inches MR1 9.78 ± 0.38 3.43 ± 0.38 34.93 ± 3.18 0.81 ± 0.05 mm 0.560 ± 0.015 0.205 ± 0.015 1.375 ± 0.125 0.032 ± 0.002 inches MR3 14.22 ± 0.38 5.21 ± 0.38 34.93 ± 3.18 0.81 ± 0.05 mm - 0.925 ± 0.015 0.330 ± 0.015 1.375 ± 0.125 0.036 ± 0.002 inches MR5 23.50 ± 0.38 8.38 ± 0.38 34.93 ± 3.18 0.91 ± 0.05 mm 1.925 ± 0.015 0.475 ± 0.015 1.375 ± 0.125 0.036 ± 0.002 inches MR10 48.90 ± 0.38 12.07 ± 0.38 34.93 ± 3.18 0.91 ± 0.05 mm TMR3 0.625 ± 0.015 0.205 ± 0.015 1.375 ± 0.125 0.032 ± 0.002 0.125 inches 15.88 ± 0.38 5.21 ± 0.38 34.93 ± 3.18 0.81 ± 0.05 3.18 mm 0.940 ± 0.015 0.330 ± 0.015 1.375 ± 0.125 0.036 ± 0.002 0.200 inches TMR5 23.88 ± 0.38 8.38 ± 0.38 34.93 ± 3.18 0.91 ± 0.05 5.08 mm (1) See Packaging Specification for lead length dimension for tape and reel packaged product. Rev Date: 09/30/2019 1 www.seielect.com This specification may be changed at any time without prior notice marketing@seielect.com Please confirm technical specifications before you order and/or use.

MR / MRS / TMR Series Stackpole Electronics, Inc. Low Resistance Value Resistor – Molded 2 and 4 Leads Resistive Product Solutions Performance Characteristics Test Test Results Moisture Resistance ± 5% Thermal Shock ± 2% Load Life @ 70 ºC - 1000 hours ± 5% Resistance to Soldering Heat ± 2% Short Time Overload ± 2% Dielectric Withstanding Voltage ± 2% Operating Temperature Range: -55 ºC to +275 ºC Power Derating Curve: -55 ºC 70 ºC 100 %) 80 ( r e w o P 60 d e at R 40 nt ce er 20 P 0 275 ºC -60 0 50 100 150 200 250 300 Ambient Temperature (ºC) TCR X Resistance: (ppm/ºC) 400 350 300 250 MR1, MR3 200 MR5, MR10 150 100 50 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10 (Ohms) Rev Date: 09/30/2019 2 www.seielect.com This specification may be changed at any time without prior notice marketing@seielect.com Please confirm technical specifications before you order and/or use.

MR / MRS / TMR Series Stackpole Electronics, Inc. Low Resistance Value Resistor – Molded 2 and 4 Leads Resistive Product Solutions Packaging Specifications Series Code A max.(1) B max C D(2) Tape Unit 3.311 13.504 0.197 ± 0.020 2.063 ± 0.079 0.250 inches 1 84.10 343.00 5.00 ± 0.50 52.40 ± 2.00 6.35 mm 3 3.484 13.504 0.394 ± 0.020 2.063 ± 0.079 0.250 inches 88.50 343.00 10.00 ± 0.50 52.40 ± 2.00 6.35 mm MR 3.850 13.504 0.394 ± 0.020 2.875 ± 0.079 0.250 inches 5 97.80 343.00 10.00 ± 0.50 73.03 ± 2.00 6.35 mm 4.764 13.504 0.394 ± 0.020 4.310 ± 0.079 0.250 inches 10 121.00 343.00 10.00 ± 0.50 109.47 ± 2.00 6.35 mm 6.299 13.504 0.394 ± 0.020 2.063 ± 0.079 0.250 inches 3 160.00 343.00 10.00 ± 0.50 52.40 ± 2.00 6.35 mm TMR 6.614 13.504 0.394 ± 0.020 2.063 ± 0.079 0.250 inches 5 168.00 343.00 10.00 ± 0.50 52.40 ± 2.00 6.35 mm Dimension "E": This is a non-critical dimension that does not have a tolerance in the standard. Range of diameters is from 0.547 inches (13.90 mm) to 1.500 inches (38.10 mm). (1) Reference value only. The "A" dimension shall be governed by the overall length of the taped component. The distance between flanges shall be 0.059 inches (1.50 mm) to 0.315 (8.00 mm) greater than the overall component. (2) The given dimension "D" expresses the standard width spacing. A 26 mm narrow spacing is available as option "N" packaging code. RoHS Compliance Stackpole Electronics has joined the worldwide effort to reduce the amount of lead in electronic components and to meet the various regulatory requirements now prevalent, such as the European Union’s directive regarding “Restrictions on Hazardous Substances” (RoHS 3). As part of this ongoing program, we periodically update this document with the status regarding the availability of our compliant components. All our standard part numbers are compliant to EU Directive 2011/65/EU of the European Parliament as amended by Directive (EU) 2015/863/EU as regards the list of restricted substances. RoHS Compliance Status Lead-Free Standard Package / St andard Lead-Free Lead-Free Termination Effective Date Product Description Termination Series RoHS Mfg. Effective Date Composition Code Series Type Compliant (Std Product Series) (YY/WW) Low Resistance Value Leaded Resistor - A x i a l MR YES 100% Matte Sn Jan-06 06/01 Molded 2 Leads Kelvin Low Resistance Value Leaded Resistor - A x i a l TMR YES 100% Matte Sn Jan-06 06/01 Molded 4 Leads Kelvin Rev Date: 09/30/2019 3 www.seielect.com This specification may be changed at any time without prior notice marketing@seielect.com Please confirm technical specifications before you order and/or use.

MR / MRS / TMR Series Stackpole Electronics, Inc. Low Resistance Value Resistor – Molded 2 and 4 Leads Resistive Product Solutions “Conflict Metals” Commitment We at Stackpole Electronics, Inc. are joined with our industry in opposing the use of metals mined in the “conflict region” of the Eastern Democratic Republic of the Congo (DRC) in our products. Recognizing that the supply chain for metals used in the electronics industry is very complex, we work closely with our own suppliers to verify to the extent possible that the materials and products we supply do not contain metals sourced from this conflict region. As such, we are in compliance with the requirements of Dodd-Frank Act regarding Conflict Minerals. Compliance to “REACH” We certify that all passive components supplied by Stackpole Electronics, Inc. are SVHC (Substances of Very High Concern) free and compliant with the requirements of EU Directive 1907/2006/EC, “The Registration, Evaluation, Authorization and Restriction of Chemicals”, otherwise referred to as REACH. Contact us for complete list of REACH Substance Candidate List. Environmental Policy It is the policy of Stackpole Electronics, Inc. (SEI) to protect the environment in all localities in which we operate. We continually strive to improve our effect on the environment. We observe all applicable laws and regulations regarding the protection of our environment and all requests related to the environment to which we have agreed. We are committed to the prevention of all forms of pollution. How to Order 1 2 3 4 5 6 7 8 9 M R 3 F T R 1 0 0 Product Series Power Rating Tolerance Packaging Resistance Value Code Description Size W Code Tol Code Description Size Quantity Four characters with the MR 2 Leads 1 1 F 1% MR1 2000 multiplier used as the TMR 4 Leads 3 3 J 5% MRS3 1000 decimal holder. MRS High Stability 5 5 T Tape and Reel MR3 750 "L" used as multiplier of 10 10 MR5 500 10-3 for any value under MR10 250 0.1 ohm. MR1, MR3, MR5 1000 0.005 ohm = 5L00 B Bulk MR10 500 0.01 ohm = 10L0 TMR 3, 5 100 0.2 ohm = R200 Rev Date: 09/30/2019 4 www.seielect.com This specification may be changed at any time without prior notice marketing@seielect.com Please confirm technical specifications before you order and/or use.