WSLF25122L000FEA Vishay

333 3 WSLF www.vishay.com Vishay Dale Power Metal Strip Resistors, Low Value (Down to 0.0003 ), Surface-Mount FEATURES Power Metal Strip all-welded construction is ideal for all types of current sensing, voltag e division, and pulse applications Solid metal nickel-chrome, manganese-copper, or manganese-copper-tin alloy resistive element with low TCR (< 20 ppm/C) Proprietary processing technique produces extremely low resistance values, down to 0.0003 LINKS TO ADDITIONAL RESOURCES Sulfur resistance by construction that is unaffected by high sulfur environments Very low inductance (< 2 nH) 3D Models Design Tools Low thermal EMF (< 3 V/C) (1) AEC-Q200 qualified Material categorization: for definitions of compliance 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 POWER RESISTANCE VALUE RESISTANCE VALUES WEIGHT GLOBAL RATING RATING TOLERANCE (3) SIZE RANGE CURRENTLY AVAILABLE (typical) (1) (2) MODEL P P % 70 C 100 C g/1000 pieces W W 2512 9.0 10.0 1.0, 5.0 0.3m to 0.5m 0.3m, 0.5m 258 2512 6.0 4.0 1.0, 5.0 1m to 2m 1m, 1.3m, 2m 212 WSLF2512 2512 4.0 3.0 1.0, 5.0 3m 3m 267 2512 3.0 3.0 1.0, 5.0 4m 4m 267 Notes Part marking: no part marking on these parts (1) See Fig. 1 - Ambient Temperature Derating (2) See Fig. 2 - Terminal Temperature Derating (3) Other values may be available, contact factory GLOBAL PART NUMBER INFORMATION Global Part Numbering: WSLF25121L000FEA (WSLF2512, 0.001 , 1 %) (visit www.vishay.net Vishay Dale parts numbering manual for all options) W S L F 2 5 1 2 1 L 0 0 0 F E A (1) (2) GLOBAL MODEL RESISTANCE VALUE TOLERANCE CODE PACKAGING CODE SPECIAL (8 digits) (5 digits) (1 digit) (2 digits) (2 digits) WSLF2512 L = m F = 1.0 % EA = lead (Pb)-free, tape / reel Reserved for future L5000 = 0.0005 J = 5.0 % specials 1L000 = 0.0010 Notes (1) Packaging code: EB (lead (Pb)-free) are non-standard packaging codes designating 1000 piece reels. These non-standard packaging codes are 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: 27-May-2021 Document Number: 30193 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 WSLF www.vishay.com Vishay Dale TECHNICAL SPECIFICATIONS PARAMETER UNIT WSLF RESISTOR CHARACTERISTICS 200 for 0.3 m and 0.5 m Component temperature coefficient (1) (including terminal) ppm/C 170 for 1.0 m and 1.3 m TCR measured from -55 C to 150 C 70 for 2 m, 3 m, and 4 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) CONSTRUCTION OUTLINE D 1 H D 2 L W 1 3 T 2 1 Resistive element: element material used is Typical current sensing traces dependent on resistance value. Refer to Element Material in table) 2 Terminal: solid copper I b 3 Terminal / element weld a Notes 3D models available: www.vishay.com/doc 30335 Surface mount solder profile recommendations: www.vishay.com/doc 31052 DIMENSIONS SOLDER PAD DIMENSIONS MODEL LW H T a b l 0.250 0.006 0.120 0.008 0.0138 0.0012 0.045 - 0.016 0.071 0.13 0.13 WSLF2512 (6.35 0.15) (3.02 0.2) (0.35 0.03) (1.14 - 0.4) (1.80) (3.40) (3.40) RESISTANCE THERMAL THICKNESS in inches (millimeters) GLOBAL VALUE RESISTANCE ELEMENT MATERIAL MODEL D D 1 2 (m) (C/W) 0.3 3.8 0.040 (1.02) 0.040 (1.02) Mn-Cu-Sn 0.5 6.7 0.033 (0.84) 0.033 (0.84) Mn-Cu 1.0 12.1 0.017 (0.43) 0.017 (0.43) Mn-Cu WSLF2512 1.3 14.6 0.013 (0.33) 0.013 (0.33) Mn-Cu 2.0 17.1 0.028 (0.71) 0.028 (0.71) Ni-Cr 3.0 18.2 0.019 (0.48) 0.019 (0.48) Ni-Cr 4.0 18.5 0.014 (0.36) 0.014 (0.36) Ni-Cr 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-May-2021 Document Number: 30193 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