WSLT2512 www.vishay.com Vishay Dale Power Metal Strip® Resistors, High Temperature (275 °C), Low Value (down to 0.01 ), Surface Mount FEATURES • Ideal for all types of current sensing, voltage division and pulse applications including switching and linear power supplies, instruments and power amplifiers • Proprietary processing technique produces extremely low resistance values • All welded construction of the Power Metal Strip® resistors are ideal for all types of current sensing, voltage division and pulse applications • Sulfur resistance by construction that is unaffected by high sulfur environments • Specially selected and stabilized materials allow for high temperature derating (to +275 °C) • Solid metal nickel-chrome alloy resistive element with low TCR (< 20 ppm/°C) DESIGN SUPPORT TOOLS click logo to get started • Very low inductance (< 5 nH) • Excellent frequency response to 50 MHz • Low thermal EMF (< 3 μV/°C) Models Design Tools • AEC-Q200 qualified (1) 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 POWER RATING RESISTANCE WEIGHT TOLERANCE GLOBAL MODEL SIZE P VALUE RANGE (typical) 70 °C ± % W  g/1000 pieces WSLT2512 2512 1.0 (1) 0.5, 1.0 0.01 to 0.50 63.6 Notes • Part marking: DALE, value, tolerance code (1) For values above 0.1  derate linearly to 80 % rated power at 0.5  TECHNICAL SPECIFICATIONS PARAMETER UNIT WSL RESISTOR CHARACTERISTICS Component temperature coefficient ppm/°C ± 75 (including terminal) (1) Element TCR (2) ppm/°C < 20 Operating temperature range °C -65 to +275 Maximum working voltage (3) V (P x R)1/2 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 illustration on the following page (3) Maximum working voltage - the WSL is not voltage sensitive, but is limited by power / energy dissipation and is also not ESD sensitive GLOBAL PART NUMBER INFORMATION Global Part Numbering example: WSLT2512R0100FEA (visit www.vishay.net Vishay Dale parts numbering manual for all options) W S L T 2 5 1 2 R 0 1 0 0 F E A GLOBAL MODEL RESISTANCE VALUE (1) TOLERANCE CODE PACKAGING CODE (2) SPECIAL WSLT2512 R = decimal D = ± 0.5 % EA = lead (Pb)-free, tape / reel Reserved for R0100 = 0.01  F = ± 1.0 % EK = lead (Pb)-free, bulk future specials 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 Revision: 16-Feb-18 1 Document Number: 30121 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

WSLT2512 www.vishay.com Vishay Dale DIMENSIONS in inches (millimeters) H l b W T a L Typical sensing traces Notes • 3D models available: www.vishay.com/doc?30338 • Surface mount solder profile recommendations: www.vishay.com/doc?31052 DIMENSIONS SOLDER PAD DIMENSIONS MODEL L W H T a b l 0.250 ± 0.010 0.125 ± 0.010 0.025 ± 0.010 0.030 ± 0.010 0.065 0.145 0.160 WSLT2512 (6.35 ± 0.254) (3.18 ± 0.254) (0.635 ± 0.254) (0.762 ± 0.254) (1.65) (3.68) (4.06) WELDED CONSTRUCTION 2512 1) Resistive element: solid metal nickel-chrome or manganese-copper alloy resistive element with low TCR (< 20 ppm/°C) 4 2) Plated terminal: Solid copper, 100 % Sn (100 μ" min.) with 1 100 % Ni (20 μ" min.) under 2 3 layer finish 3) Terminal / element weld 4) Silicone coating with ink print DERATING PULSE CAPABILITY % 120 er in 100 click to get started OO N LLLLL YY w SS o EE d P 80 PP O S ate P U RR R 60 E V TI AAA 40 T R S U LL 20 IILL 0 - 65 - 25 25 75 125 175 225 275 70 Ambient Temperature in °C www.vishay.com/resistors/power-metal-strip-calculator Revision: 16-Feb-18 2 Document Number: 30121 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

WSLT2512 www.vishay.com Vishay Dale PERFORMANCE TEST CONDITIONS OF TEST TEST LIMITS Thermal shock -55 °C to +150 °C, 1000 cycles, 15 min at each extreme ± 0.5 % Short time overload 5x rated power for 5 s ± 0.5 % Low temperature operation -65 °C for 24 h ± 0.5 % High temperature exposure 1000 h at +275 °C ± 1.0 % Bias humidity +85 °C, 85 % RH, 10 % bias, 1000 h ± 0.5 % Mechanical shock 100 g’s for 6 ms, 5 pulses ± 0.5 % Vibration Frequency varied 10 Hz to 2000 Hz in 1 min, 3 directions, 12 h ± 0.5 % Load life at 70 °C 1000 h, 1.5 h “ON”, 0.5 h “OFF” ± 1.0 % Load life at 150 °C 1000 h, 1.5 h “ON”, 0.5 h “OFF” ± 1.0 % Resistance to solder heat 260 °C solder, 10 s to 12 s dwell, 25 mm/s emergence ± 0.5 % Moisture resistance MIL-STD-202, method 106, 0 % power, 7b not required ± 1.0 % PACKAGING REEL MODEL TAPE WIDTH DIAMETER PIECES/REEL CODE WSLT2512 12 mm/embossed plastic 178 mm/7" 2000 EA Notes • Embossed carrier tape per EIA-481 (1) Additional packaging details at www.vishay.com/doc?20051 Revision: 16-Feb-18 3 Document Number: 30121 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

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