WSLF25121L300FEA

WSLF www.vishay.com Vishay Dale Power Metal Strip® Resistors, Low Value (Down to 0.0003 Ω), Surface-Mount FEATURES • Power Metal Strip® all-welded construction is ideal for all types of current sensing, voltage 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 Ω LINKS TO ADDITIONAL RESOURCES • Sulfur resistance by construction that is unaffected by high sulfur environments 3D 3D 3D Models • Very low inductance (< 2 nH) Design Tools • Low thermal EMF (< 3 μV/°C) • AEC-Q200 qualified (1) • 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 GLOBAL MODEL SIZE POWER RATING P70 °C (1) W POWER RATING P100 °C (2) W TOLERANCE % RESISTANCE VALUE RANGE Ω RESISTANCE VALUES CURRENTLY AVAILABLE (3) Ω WEIGHT (typical) g/1000 pieces WSLF2512 2512 2512 2512 2512 9.0 6.0 4.0 3.0 10.0 4.0 3.0 3.0 1.0, 5.0 1.0, 5.0 1.0, 5.0 1.0, 5.0 0.3m to 0.5m 1m to 2m 3m 4m 0.3m, 0.5m 1m, 1.3m, 2m 3m 4m 258 212 267 267 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 Ω, ± 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 GLOBAL MODEL (8 digits) RESISTANCE VALUE (5 digits) TOLERANCE CODE (1 digit) PACKAGING CODE (1) (2 digits) SPECIAL (2) (2 digits) WSLF2512 L = mΩ L5000 = 0.0005 Ω 1L000 = 0.0010 Ω F = ± 1.0 % J = ± 5.0 % EA = lead (Pb)-free, tape / reel Reserved for future specials 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 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 Revision: 27-May-2021 WSLF www.vishay.com Vishay Dale TECHNICAL SPECIFICATIONS PARAMETER UNIT WSLF RESISTOR CHARACTERISTICS ± 200 for 0.3 mΩ and 0.5 mΩ Component temperature coefficient (including terminal) (1) TCR measured from -55 °C to 150 °C ppm/°C ± 170 for 1.0 mΩ and 1.3 mΩ ± 70 for 2 mΩ, 3 mΩ, and 4 mΩ (2) ppm/°C < 20 Operating temperature range °C -65 to +170 Maximum working voltage (3) V (P x R)1/2 Element TCR 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 D1 H D2 L W 1 T 3 2 Typical current sensing traces I b 1 Resistive element: element material used is dependent on resistance value. Refer to Element Material in table) 2 Terminal: solid copper 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 MODEL SOLDER PAD DIMENSIONS L W H T a b l WSLF2512 0.250 ± 0.006 (6.35 ± 0.15) 0.120 ± 0.008 (3.02 ± 0.2) 0.0138 ± 0.0012 (0.35 ± 0.03) 0.045 - 0.016 (1.14 - 0.4) 0.071 (1.80) 0.13 (3.40) 0.13 (3.40) GLOBAL MODEL RESISTANCE VALUE (mΩ) THERMAL RESISTANCE (°C/W) 0.3 3.8 WSLF2512 THICKNESS in inches (millimeters) ELEMENT MATERIAL D1 D2 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 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 junction 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 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 Revision: 27-May-2021 WSLF www.vishay.com Vishay Dale DERATING- AMBIENT TEMPERATURE DERATING - TERMINAL TEMPERATURE Axis Title Axis Title 10000 120 10000 120 Stability < 1.0 % 100 100 40 1000 80 1st line 2nd line 60 2nd line P/PNorm. (%) 1000 80 1st line 2nd line 2nd line Rated Power (%) 100 60 Stability < 0.5 % 100 40 20 20 10 0 -65 -50 -25 0 25 50 70 10 0 0 100 125 150 170 20 40 60 80 100 120 140 160 180 Ambient Temperature (°C) TK - Terminal Temperature (°C) Fig. 1 - P70 °C of Standard Electrical Specification Table Fig. 2 - P100 °C Rated Power of Standard Electrical Specification Table (Example L5000) PULSE CAPABILITY click to get started VE TI A TR US L IL S SE O RP PU LY ON www.vishay.com/resistors/power-metal-strip-calculator PERFORMANCE TEST Thermal shock Short time overload Low temperature storage High temperature exposure Bias humidity Mechanical shock Vibration Load life Resistance to solder heat Moisture resistance PACKAGING CONDITIONS OF TEST -55 °C to +150 °C, 2000 cycles, 15 min at each extreme 5 x rated power for 5 s -65 °C for 24 h 2000 h at +170 °C +85 °C, 85 % RH, 10 % bias, 1000 h 100 g’s for 6 ms, 5 pulses Frequency varied 10 Hz to 2000 Hz in 1 min, 3 directions, 12 h 2000 h at +70 °C, 1.5 h “ON”, 0.5 h “OFF” +260 °C solder, 10 s to 12 s dwell, 25 mm/s emergence MIL-STD-202, method 106, 0 % power, 7a and 7b not required TEST LIMITS ± 0.5 % ± 0.5 % ± 0.1 % ± 1.0 % ± 0.5 % ± 0.2 % ± 0.2 % ± 1.0 % ± 0.5 % ± 0.1 % (1) MODEL WSLF2512 TAPE WIDTH 12 mm / embossed plastic REEL DIAMETER 330 mm / 13" PIECES/REEL 4000 CODE EA Notes • Embossed carrier tape per EIA-481 (1) Additional packaging details at www.vishay.com/doc?20051 Document Number: 30193 3 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 Revision: 27-May-2021 Legal Disclaimer Notice www.vishay.com Vishay Disclaimer ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other disclosure relating to any product. Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or the continuing production of any product. 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