333 3 WSLP2726 www.vishay.com Vishay Dale Power Metal Strip Resistors, Very High Power (to 12 W), Low Value (Down to 0.0002 ), Surface Mount FEATURES 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 Specially selected and stabilized materials allow for high power rating (to 12 W) Solid metal nickel-chrome 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 (2) SIZE P RANGE CURRENTLY AVAILABLE (typical) 70 C MODEL % W g/1000 pieces WSLP2726 2726 5.0 1.0, 5.0 1.3m to 5m 1.3m, 2m, 3m, 4m, 5m 420 WSLP2726 2726 7.0 1.0, 5.0 0.5m to 1m 0.5m, 0.7m, 1m 420 WSLP2726 2726 10.0 1.0, 5.0 0.3m 0.3m 420 WSLP2726 2726 12.0 1.0, 5.0 0.2m 0.2m 420 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: WSLP2726L5000FEA (visit www.vishay.net Vishay Dale parts numbering manual for all options) W S L P 2 7 2 6 L 5 0 0 0 F E A (1) (2) (3) GLOBAL MODEL RESISTANCE VALUE TOLERANCE CODE PACKAGING CODE SPECIAL (8 digits) (5 digits) (1 digit) (2 digits) (up to 2 digits) WSLP2726 L = m F = 1.0 % EA = lead (Pb)-free, tape/reel (dash number) L5000 = 0.0005 J = 5.0 % EK = lead (Pb)-free, bulk (up to 2 digits) L7000 = 0.0007 from 1 to 99 as 1L000 = 0.0010 applicable 2L000 = 0.0020 Notes (1) WSL marking (www.vishay.com/doc 30327) (2) Packaging code: EB (lead (Pb)-free) is a non-standard packaging code designating 1000 piece reels. The non-standard packaging code is identical to our standard EA (lead (Pb)-free), except that it is a package quantity of 1000 pieces (3) Follow link for customization capabilities: www.vishay.com/doc 48163 Revision: 27-Jan-2021 Document Number: 30179 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 WSLP2726 www.vishay.com Vishay Dale TECHNICAL SPECIFICATIONS PARAMETER UNIT RESISTOR CHARACTERISTICS (1) 75 for 0.5 m to 5 m Component temperature coefficient (including terminal) ppm/C TCR measured from -55 C to 150 C 110 for 0.3 m, 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 refer to item 1 in the Construction Outline (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) CONSTRUCTION OUTLINE W L c 1 Resistive element: refer to table below d b for element material a S 2 Terminal: solid copper w b U T 3 Terminal / element weld R N 1 H 3 2 Notes 3D models available: www.vishay.com/doc 30314 Surface mount solder profile recommendations: www.vishay.com/doc 31052 DIMENSIONS MODEL R LW H ST U N (REF.) 0.272 0.008 0.260 + 0.012/- 0.008 Please see 0.195 0.028 0.004 0.016 0.002 0.078 0.004 0.039 0.006 WSLP2726 (6.9 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 MODEL ab cd w 0.220 0.096 0.035 0.035 0.290 WSLP2726 (5.6) (2.44) (0.89) (0.89) (7.4) (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) WSLP2726 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: 27-Jan-2021 Document Number: 30179 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