WSR High Power www.vishay.com Vishay Dale Power Metal Strip Resistors, Low Value (down to 0.001 ), Surface Mount FEATURES Molded high temperature encapsulation Improved thermal management incorporated into design All welded construction of the Power Metal Available Strip resistors are ideal for all types of current sensing, voltage division and pulse applications Proprietary processing technique produces extremely low resistance values (down to Available 0.001 ) Sulfur resistance by construction that is Available unaffected by high sulfur environments Solid metal nickel-chrome or manganese- copper alloy resistive element with low TCR Available (< 20 ppm/C) Very low inductance 0.5 nH to 5 nH Low thermal EMF (< 3 V/C) click logo to get started DESIGN SUPPORT TOOLS Integral heat sink not utilized for resistance values less than 0.0075 Models Design Tools (1) AEC-Q200 qualified Available Available Material categorization: for definitions of compliance please see www.vishay.com/doc 99912 Notes * 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 Follow link to Overview of Automotive Grade Products for more details: www.vishay.com/doc 49924 (1) Flame retardance test may not be applicable to some resistor technologies STANDARD ELECTRICAL SPECIFICATIONS RESISTANCE VALUE RANGE POWER RATING WEIGHT GLOBAL SIZE P (typical) 70 C MODEL W g/1000 pieces Tol. 0.5 % Tol. 1.0 % (1) WSR5 4527 5.0 0.01 to 0.3 0.001 to 0.3 476 Notes Part marking: DALE, model, value, tolerance, date code (1) The WSR5 is rated at 5 W with terminal temperature maintained 120 C GLOBAL PART NUMBER INFORMATION Global Part Numbering example: WSR5R0100FEA (preferred part numbering format) (visit www.vishay.net Vishay Dale parts numbering manual for all options) WS R5R0 1 0 0 F E A (1) (2) (3) GLOBAL MODEL RESISTANCE VALUE TOLERANCE CODE PACKAGING CODE SPECIAL WSR5 L = m* D = 0.5 % EA = lead (Pb)-free, tape / reel (dash number) R = decimal F = 1.0 % EK = lead (Pb)-free, bulk (up to 2 digits) 5L000 = 0.005 J = 5.0 % from 1 to 99 as R0100 = 0.01 TA = tin / lead, tape / reel (R86) applicable * use L for resistance BA = tin / lead, bulk (B43) values < 0.01 Notes (1) WSR Marking (www.vishay.com/doc 30327) (2) Packaging code: EB (lead (Pb)-free) and TB (tin / lead) are non-standard packaging codes designating 1000 piece reels. These non-standard packaging codes are identical to our standard EA (lead (Pb)-free) and TA (tin / lead), except that they have a package quantity of 1000 pieces (3) Follow link for customization capabilities: www.vishay.com/doc 48163 Revision: 11-Jul-2018 Document Number: 31059 1 For technical questions, contact: ww2bresistors 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 WSR High Power www.vishay.com Vishay Dale TECHNICAL SPECIFICATIONS PARAMETER UNIT WSR5 RESISTOR CHARACTERISTICS 75 for 0.01 to 0.3 110 for 0.005 to 0.0099 Temperature coefficient ppm/C 300 for 0.004 to 0.0049 450 for 0.003 to 0.0039 600 for 0.002 to 0.0029 750 for 0.001 to 0.0019 Element TCR ppm/C < 20 Dielectric withstanding voltage V > 500 AC 9 Insulation resistance > 10 Operating temperature range C -65 to +275 1/2 Maximum working voltage V (P x R) DIMENSIONS in inches (millimeters) H W I b W 1 T a L Notes 3D models available: www.vishay.com/doc 30342 Surface mount solder profile recommendations: www.vishay.com/doc 31052 DIMENSIONS SOLDER PAD DIMENSIONS MODEL LH T W W ab l 1 0.455 0.032 0.095 0.005 0.100 0.010 0.275 0.005 0.215 0.005 0.155 0.230 0.205 WSR5 (11.56 0.813) (2.41 0.127) (2.54 0.254) (6.98 0.127) (5.46 0.127) (3.94) (5.84) (5.21) Note Sensing locations are based on the construction of the part terminals are wrapped from the outside to underneath. These options place the sensing location nearest the temperature stable resistance element, which minimizes contact resistance and optimizes TCR TYPICAL SENSING LAYOUT a a c b l c abc l 0.155 0.230 0.020 0.205 (3.94) (5.84) (0.51) (5.21) Revision: 11-Jul-2018 Document Number: 31059 2 For technical questions, contact: ww2bresistors 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