333 3 WSL4026 www.vishay.com Vishay Dale Power Metal Strip Resistors, Low Value, High Power, Surface Mount, 4-Terminal FEATURES 4-terminal design allows for 1 % tolerance down to 0.0002 High power to foot print size ratio All welded construction of the Power Metal 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 0.0002 Sulfur resistance by construction that is unaffected by high sulfur environments Solid metal nickel-chrome, manganese-copper-tin, or manganese-copper alloy resistive element with low TCR (< 20 ppm/C) Very low inductance 0.5 nH to 5 nH LINKS TO ADDITIONAL RESOURCES Low thermal EMF (< 3 V/C) (1) AEC-Q200 qualified Material categorization: for definitions of compliance 3D Models Design Tools please see www.vishay.com/doc 99912 Notes 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 POWER RATING RESISTANCE VALUE RESISTANCE VALUES WEIGHT GLOBAL TOLERANCE (1) SIZE P RANGE CURRENTLY AVAILABLE (typical) 70 C MODEL % W g/1000 pieces 0.2m, 0.3m, 0.5m, 0.7m, WSL4026 4026 3.0 1.0 0.2m to 5m 420 1m, 1.3m, 2m, 3m, 4m, 5m Notes Power rating depends on the max. temperature at the solder point, component placement density and the substrate material Part marking: model, value, tolerance, date code (1) Other values may be available, contact factory GLOBAL PART NUMBER INFORMATION Global Part Numbering Example: WSL4026L5000FEA (WSL4026, 0.0005 , 1 %) (visit www.vishay.net Vishay Dale parts numbering manual for all options) W S L 4 0 2 6 L 5 0 0 0 F E A (1) (2) GLOBAL MODEL RESISTANCE VALUE TOLERANCE CODE PACKAGING CODE SPECIAL (7 digits) (5 digits) (1 digit) (2 digits) (up to 2 digits) WSL4026 L = m F = 1.0 % EA = lead (Pb)-free, tape / reel (dash number) L5000 = 0.0005 EK = lead (Pb)-free, bulk (up to 2 digits) 1L000 = 0.0010 from 1 to 99 as applicable Notes (1) Packaging code: EB (lead (Pb)-free) is non-standard packaging code designating 1000 piece reels. These non-standard packaging code is identical to our standard EA (lead (Pb)-free), except that they have a package quantity of 1000 pieces (2) Follow link for customization capabilities: www.vishay.com/doc 48163 Revision: 17-Sep-2020 Document Number: 30132 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 DDD D WSL4026 www.vishay.com Vishay Dale TECHNICAL SPECIFICATIONS PARAMETER UNIT RESISTOR CHARACTERISTICS 75 for 0.5 m to 5 m Component temperature coefficient (1) (including terminal) ppm/C 110 for 0.3 m TCR measured from -55 C to 150 C 75 for 0.2 m (2) Element TCR ppm/C < 20 Operating temperature range C -65 to +170 (3) 1/2 Maximum working voltage V(P x R) Notes (1) Component TCR - total TCR that includes the TCR effects of the resistor element and the copper terminal (2) Element TCR - only applies to the alloy used for the resistor element (3) Maximum working voltage - the WSL is not voltage sensitive, but is limited by power / energy dissipation and is also not ESD sensitive DIMENSIONS in inches (millimeters) W L c T d b U S a w 0.004 b R N Terminal Area H Notes 3D models available: www.vishay.com/doc 30311 Surface mount solder profile recommendations: www.vishay.com/doc 31052 DIMENSIONS in inches (millimeters) MODEL R LW H ST U N (REF.) 0.400 0.008 0.260 + 0.012/- 0.008 Please see 0.198 0.028 0.004 0.016 0.002 0.078 0.004 0.039 0.006 WSL4026 (10.1 0.2) (6.6 + 0.3/- 0.2) table below (5.0) (0.7 0.1) (0.4 0.05) (2.0 0.1) (0.99 0.15) SOLDER PAD DIMENSIONS in inches (millimeters) MODEL ab cd w 0.220 0.096 0.035 0.035 0.420 WSL4026 (5.6) (2.44) (0.89) (0.89) (10.67) (1) RESISTANCE VALUE THERMAL RESISTANCE HEIGHT MODEL ELEMENT MATERIAL (m) (C/W) H 0.2 3 Mn-Cu-Sn 0.150 0.008 (3.81 0.2) 0.3 4 Mn-Cu 0.141 0.008 (3.58 0.2) 0.5 6 Mn-Cu 0.116 0.008 (2.95 0.2) 0.7 8 Mn-Cu 0.111 0.008 (2.82 0.2) 1.0 10 Mn-Cu 0.1055 0.008 (2.68 0.2) WSL4026 1.3 11 Ni-Cr 0.119 0.008 (3.02 0.2) 2.0 16 Ni-Cr 0.114 0.008 (2.9 0.2) 3.0 19 Ni-Cr 0.110 0.008 (2.79 0.2) 4.0 22 Ni-Cr 0.110 0.008 (2.79 0.2) 5.0 38 Ni-Cr 0.110 0.008 (2.79 0.2) Note (1) The full power rating of Power Metal Strip resistors are dependent upon the ability of the circuit board to dissipate the heat energy created in the resistance element. It is recommended to follow common design practices for power semiconductors that ensure the junctio n temperature is maintained with in thermal limits by using large pad surfaces, thermal vias, heavier copper weights, internal layers as well as other thermal spreading features. The thermal resistance values provided function in the same manner as junction to terminal temperature Revision: 17-Sep-2020 Document Number: 30132 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