333 3 WSL3637 www.vishay.com Vishay Dale Power Metal Strip Resistors, Low Value (Down to 0.001 ), Surface Mount, 4-Terminal FEATURES 4-terminal design allows for 0.5 % resistance tolerance down to 0.001 All welded construction of the Power Metal Strip resistors are ideal for all types of current Available sensing, voltage division, and pulse applications Proprietary processing technique produces extremely low resistance values (down to 0.001 ) Available Sulfur resistance by construction that i s unaffected by high sulfur environments Solid metal nickel-chrome alloy resistive Available element with low TCR (< 20 ppm/C) Low thermal EMF (< 3 V/C) Available LINKS TO ADDITIONAL RESOURCES Very low inductance, 0.5 nH to 5 nH Excellent frequency response to 50 MHz (1) AEC-Q200 qualified 3D Models Design Tools PATENT(S): www.vishay.com/patents Material categorization: for definitions of compliance please see www.vishay.com/doc 99912 Note * 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 POWER RATING RESISTANCE WEIGHT TOLERANCE GLOBAL MODEL SIZE P VALUE RANGE (typical) 70 C % W g/1000 pieces WSL3637 3637 3.0 0.5 and 1.0 0.001 to 0.01 274.3 GLOBAL PART NUMBER INFORMATION Global Part Numbering Example: WSL36375L000FEA (visit www.vishay.net Vishay Dale parts numbering manual for all options) W S L 3 6 3 7 5 L 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) (2 digits) * WSL3637 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 from 1 to 99 as TA = tin / lead, tape/reel (R86) R0100 = 0.01 BA = tin / lead, bulk (B43) applicable * Use L for resistance values < 0.01 Notes (1) WSL 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 PATENT(S): www.vishay.com/patents This Vishay product is protected by one or more United States and international patents. Revision: 17-Sep-2020 Document Number: 30099 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 WSL3637 www.vishay.com Vishay Dale TECHNICAL SPECIFICATIONS PARAMETER UNIT RESISTOR CHARACTERISTICS 50 for 0.003 to 0.010 Temperature coefficient ppm/C 75 for 0.001 to 0.0029 Element TCR ppm/C < 20 Operating temperature range C -65 to +170 1/2 Maximum working voltage V (P x R) DIMENSIONS H I c A d B L a b T W Note 3D models available: www.vishay.com/doc 30303 DIMENSIONS in inches (millimeters) MODEL RESISTANCE RANGE WL H T A B () 0.086 0.010 0.002 to 0.01 (2.18 0.254) 0.370 0.010 0.360 0.010 0.025 0.010 0.061 0.010 0.032 0.010 WSL3637 (9.40 0.254) (9.14 0.254) (0.635 0.254) (1.55 0.254) (0.813 0.254) 0.138 0.010 0.001 to 0.0019 (3.51 0.254) SOLDER PAD DIMENSIONS in inches (millimeters) MODEL RESISTANCE RANGE ab cd l () 0.002 to 0.01 0.116 (2.95) 0.390 (9.91) 0.066 (1.68) 0.024 (0.610) 0.178 (4.52) WSL3637 0.001 to 0.0019 0.168 (4.27) 0.390 (9.91) 0.066 (1.68) 0.024 (0.610) 0.074 (1.88) 4 TERMINAL KELVIN CONNECTIONS E1 I1 E2 I2 Notes E1 and E2: voltage sense connection I1 and I2: current connection Revision: 17-Sep-2020 Document Number: 30099 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