MR300 Series www.vishay.com Vishay Mills Wirewound Resistor, Ultra Precision, High Stability, Epoxy Molded, Axial Lead FEATURES Stability of 20 ppm/year Resistance values up to 6 M Resistance tolerances down to 0.005 % Tighter tolerances and lower resistance values available, please contact factory Temperature coefficients down to 2 ppm/C, and up to 6000 ppm/C Matched resistance sets available in tolerances down to 0.001 %, and in temperature coefficients down to 0.5 ppm/C, please contact factory Custom design capability available, please contact factory Material categorization: for definitions of compliance please see www.vishay.com/doc 99912 STANDARD ELECTRICAL SPECIFICATIONS RESISTANCE RANGE RESISTANCE RANGE RESISTANCE RANGE RESISTANCE RANGE MAXIMUM POWER GLOBAL WORKING RATING 0.1 %, 0.25 %, 0.05 %, 0.1 %, 0.01 %, 0.05 %, 0.005 %, 0.01 %, MODEL VOLTAGE (1) W 0.5 %, 1 % 0.25 %, 0.5 %, 1 % 0.1 %, 0.25 %, 0.05 %, 0.1 %, (2) V 0.5 %, 1 % 0.25 %, 0.5 %, 1 % MR301 0.120 1 to 400K 5 to 400K 50 to 400K 1K to 400K 150 MR302 0.175 1 to 750K 5 to 750K 50 to 750K 1K to 750K 200 MR303 0.200 1 to 750K 5 to 750K 50 to 750K 1K to 750K 200 MR304 0.150 1 to 500K 5 to 500K 50 to 500K 1K to 500K 100 MR305 0.200 1 to 1.0M 5 to 1.0M 50 to 1.0M 1K to 1.0M 200 MR306 0.250 1 to 1.2M 5 to 1.2M 50 to 1.2M 1K to 1.2M 300 MR307 0.330 1 to 2.5M 5 to 2.5M 50 to 2.5M 1K to 2.5M 400 MR308 0.400 1 to 3.8M 5 to 3.8M 50 to 3.8M 1K to 3.8M 300 MR310 0.500 1 to 3.8 M 5 to 3.8 M 50 to 3.8 M 1K to 3.8 M 400 MR311 0.500 1 to 3.8M 5 to 3.8M 50 to 3.8M 1K to 3.8M 400 MR312 0.750 1 to 6.0M 5 to 6.0M 50 to 6.0M 1K to 6.0M 600 MR314 1.000 1 to 6.0M 5 to 6.0M 50 to 6.0M 1K to 6.0M 800 MR315 1.500 1 to 6.0M 5 to 6.0M 50 to 6.0M 1K to 6.0M 900 MR316 2.000 1 to 6.0M 5 to 6.0M 50 to 6.0M 1K to 6.0M 1000 Notes (1) Power rating is based on tolerance, please see derating chart. (2) The maximum working voltage is the highest voltage that can be applied to the resistor. Below this value, the maximum voltage that can 1/2 continuously be applied is given by (P x R) . GLOBAL PART NUMBER INFORMATION Global Part Numbering example: MR30615K000QAE66 (visit www.vishay.net SAP parts manual for all options) M R 3 06 15 K 00 0 Q A E 6 6 GLOBAL MODEL VALUE TOLERANCE TC PACKAGING CODE SPECIAL (5 digits) (6 digits) (1 digit) (1 digits) (3 digits) (up to 2 digits) (see Standard Electrical R = decimal S = 0.005 % A = standard, E66 = lead (Pb)-free (dash Specifications Global K = thousand T = 0.01 % 10 to 30 (W) bulk pack number) Model column M = million Q = 0.02 % B = 3900 (Q) from 1 to 99 for options) 1R5000 = 1.5 A = 0.05 % C = 4500 (M) as applicable 1K5000 = 1.5 k B = 0.1 % D = 6000 (N) S = 0.025 1M0000 = 1 M C = 0.25 % E = 3500 (P) terminal D = 0.5 % Y = 10 ( 1 ) F = 1.0 % G = 5 ( 10 ) J = 2 ( 100 ) Historical Part Number example: MR306W15K0Q MR306 W = STANDARD 15 k 0.02 % HISTORICAL MODEL TC RESISTANCE VALUE TOLERANCE Revision: 03-Jun-16 Document Number: 31815 1 For technical questions, contact: ww2aresistors vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc 910001 %, 0.5 %, 0.1 % Tolerance 0.05 %, 0.02 % Tolerance 0.01 % Tolerance 0.005 % Tolerance MR300 Series www.vishay.com Vishay Mills DIMENSIONS in inches millimeters L LD D DIMENSIONS in inches millimeters MODEL L 0.025 0.635 D 0.005 0.127 LD 0.002 0.051 MR301 0.250 6.35 0.187 4.75 0.025 0.635 MR302 0.375 9.52 0.187 4.75 0.025 0.635 MR303 0.450 11.43 0.187 4.75 0.025 0.635 MR304 0.250 6.35 0.250 6.35 0.025 0.635 (1) MR305 0.375 9.52 0.250 6.35 0.032 0.813 (1) MR306 0.500 12.70 0.250 6.35 0.032 0.813 (1) MR307 0.750 19.05 0.250 6.35 0.032 0.813 MR308 0.500 12.70 0.375 9.52 0.032 0.813 MR310 0.750 19.05 0.375 9.52 0.032 0.813 MR311 0.750 19.05 0.375 9.52 0.032 0.813 MR312 1.000 25.40 0.375 9.52 0.032 0.813 MR314 1.000 25.40 0.500 12.70 0.032 0.813 MR315 1.500 38.10 0.500 12.70 0.032 0.813 MR316 2.000 50.80 0.500 12.70 0.032 0.813 Note (1) 0.025 0.635 available, this is called out by putting an S in the SPECIAL section of the part number. MATERIAL SPECIFICATIONS DERATING 180 Element: nickel-chrome alloy, other materials available 160 depending on TC requirements 140 Core: molded epoxy 120 Encapsulant: epoxy 100 80 Standard Terminals: 100 % matte tinned copper 60 Part Marking: MILLS, model, value, tolerance, date code 40 Note 20 Due to resistor size limitations some resistors will have minimal 0 0 20 40 60 80 100 120 140 160 information marked on parts. AMBIENT TEMPERATURE IN C TECHNICAL SPECIFICATIONS PARAMETER UNIT MR300 RESISTOR CHARACTERISTICS Temperature Coefficient ppm/C 10 for > 100 20 for 10 to 100 30 for < 10 Terminal Strength lb 4.5 Dielectric Withstanding Voltage V 750 AC Operating Temperature Range C -55 to +145 (see derating chart) Revision: 03-Jun-16 Document Number: 31815 2 For technical questions, contact: ww2aresistors vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc 91000 RATED POWER IN %