MR/MRS/TMR Series Stackpole Electronics, Inc. Low Resistance Value Resistor - Molded 2 and 4 Leads Features: * * * * * * * * * * * Resistive Product Solutions Metal element resistors Excellent load life stability Inherently non-inductive Tinned copper leads Low temperature coefficient RoHS compliant Molded bodies TMR - Kelvin Bridge Test MRS high stability version Cut and formed product is available on selected sizes Contact factory for details Electrical Specifications Power Rating (Watts) @ 70C Short Time Overload MR1 1W 5 sec. at 5x rated power 500 VAC 50 to 400 ppm/C (1) 0.01 - 0.1 MR3 3W 5 sec. at 5x rated power 500 VAC 50 to 400 ppm/C (1) 0.005 - 0.2 MR5 5W 5 sec. at 5x rated power 500 VAC 50 to 400 ppm/C (1) 0.005 - 0.3 MR10 10W 5 sec. at 5x rated power 500 VAC 50 to 400 ppm/C (1) 0.01 - 0.5 TMR3 3W 5 sec. at 5x rated power 500 VAC 40 ppm/C 0.005 - 0.2 TMR5 5W 5 sec. at 5x rated power 500 VAC 40 ppm/C 0.005 - 0.3 Type / Code Dielectric Strength Resistance Temperature Coefficient Ohmic Range () and Tolerance 1%, 5% (1) TCR is value dependent. Contact factory for specific data. Performance Characteristics Test Test Results Moisture Resistance 5% Thermal Shock 2% Load Life @ 70C - 1,000 hrs. 5% Resistance to Soldering Heat 2% Short Time Overload 2% Dielectric Withstanding Voltage 2% Operating Temperature Range: -55C to +275C Percent Rated Power (%) Power Derating Curve: 100 75 50 25 0 25 50 100 150 200 250 275 300 Ambient Temperature (C) Rev Date: 03/24/2011 This specification may be changed at any time without prior notice Please confirm technical specifications before you order and/or use. 1 www.seielect.com marketing@seielect.com MR/MRS/TMR Series Stackpole Electronics, Inc. Low Resistance Value Resistor - Molded 2 and 4 Leads Resistive Product Solutions MR TMR Mechanical Specifications Type / Code A Body Length B Body Diameter C Lead Length D Lead Diameter E Lead Spacing (Ref.) Unit Tolerance 0.015 0.4 0.015 0.4 0.125 3.4 0.002 0.05 - inches mm MR1 0.385 9.8 0.135 3.4 1.375 34.9 0.032 0.81 - inches mm MR3 0.56 14.2 0.205 5.2 1.375 34.9 0.032 0.81 - inches mm MR5 0.925 23.5 0.33 8.4 1.375 34.9 0.036 0.91 - inches mm MR10 1.925 46.4 0.475 10 1.375 34.9 0.036 0.91 - inches mm TMR3 0.625 15.9 0.205 5.2 1.375 34.9 0.032 0.81 0.125 3.2 inches mm TMR5 0.94 23.9 0.33 8.4 1.375 34.9 0.036 0.91 0.2 5.1 inches mm TCR x Resistance: (ppm/C) 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: 03/24/2011 This specification may be changed at any time without prior notice Please confirm technical specifications before you order and/or use. 2 www.seielect.com marketing@seielect.com MR/MRS/TMR Series Stackpole Electronics, Inc. Low Resistance Value Resistor - Molded 2 and 4 Leads Resistive Product Solutions How to Order 1 2 3 4 5 6 7 8 9 M R 3 F T R 1 0 0 Product Series MR 2 Leads 4 Leads TMR High Stability MRS Size 1 3 5 10 Power 1W 3W 5W 10W Tolerance Code Tol 1% F 5% J Packaging Size MR1 MR3 Tape and Reel MR5 MR10 MR1, MR3, MR5 MR10 Bulk TMR 3, 5 Description Code T B Quantity 2,000 750 500 250 1,000 500 100 Resistance Value Four characters with the multiplier used as the decimal holder. "L" used as multiplier of -3 10 for any value under 0.1 ohm. 0.005 ohm = 5L00 0.01 ohm = 10L0 0.2 ohm = R200 Legacy Part Number (before January 3, 2011): Type MR TMR MRS SEI Type Code Nominal Resistance Tolerance Packaging MR 3 0.1 1% R Description 2 Leads 4 Leads High Stability Code 1 3 5 10 Tolerance 1% 5% Rev Date: 03/24/2011 This specification may be changed at any time without prior notice Please confirm technical specifications before you order and/or use. Type MR1 MR3 MR5 MR10 MR1, MR3, MR5 MR10 TMR3, TMR5 3 Pkg Qty 2,000 750 500 250 1,000 500 100 Description Code Tape and Reel R Bulk B www.seielect.com marketing@seielect.com