WSLS2512, Improved Stability www.vishay.com Vishay Dale Power Metal Strip® Resistors, Improved Stability (0.25 % and 0.5 %), Low Value, Surface Mount FEATURES • Current sensing in high-temperature (+ 125 °C) applications • Greater stability with maximum resistance change of 0.25 % or 0.5 % through 2000 h workload • Ideal for all types of current sensing, voltage division and pulse applications including switching and linear power supplies, instruments, power amplifiers and shunts • Proprietary processing technique produces extremely low resistance values (0.01 to 0.1 ) • All welded construction • Solid metal nickel-chrome resistive element with low TCR (< 20 ppm/°C) • Very low inductance 0.5 neH to 2 nH • Excellent frequency response to 50 MHz • Low thermal EMF (< 3 μV/°C) • AEC-Q200 qualified (1) • Material categorization: For definitions of compliance please see www.vishay.com/doc?99912 Note (1) Flame retardance test may not be applicable to some resistor technologies. STANDARD ELECTRICAL SPECIFICATIONS GLOBAL MODEL SIZE POWER RATING P70 °C W TOLERANCE ±% RESISTANCE VALUE RANGE WEIGHT (typical) g/1000 pieces WSLS2512 2512 1.0 0.5, 1.0, 5.0 0.01 to 0.1 63.6 Note • Part marking: Value, RTC/stability code. TECHNICAL SPECIFICATIONS PARAMETER UNIT RESISTOR CHARACTERISTICS Temperature coefficient ppm/°C ± 75 Element TCR ppm/°C < 20 Operating temperature range °C - 65 to + 170 Maximum working voltage V (P x R)1/2 GLOBAL PART NUMBER INFORMATION Global Part Numbering example: WSLS2512R0100FHEA W S L S 2 5 1 2 R 0 1 0 0 F H E A GLOBAL MODEL RESISTANCE VALUE TOLERANCE CODE RTC/STABILITY PACKAGING CODE SPECIAL WSLS2512 R = Decimal R0100 = 0.01 D = ± 0.5 % F = ± 1.0 % J = ± 5.0 % G = 75 ppm, 0.25 % stability H = 75 ppm, 0.5 % stability EA = Lead (Pb)-free, tape/reel EK = Lead (Pb)-free, bulk (Dash number) (up to 2 digits) From 1 to 99 as applicable Revision: 05-Mar-14 Document Number: 30123 1 For technical questions, contact: [email protected] 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 WSLS2512, Improved Stability www.vishay.com Vishay Dale DIMENSIONS in inches (millimeters) H l b W a T L DIMENSIONS MODEL WSLS2512 Typical sensing traces SOLDER PAD DIMENSIONS L W H T a b l 0.250 ± 0.010 (6.35 ± 0.254) 0.125 ± 0.010 (3.18 ± 0.254) 0.025 ± 0.010 (0.635 ± 0.254) 0.030 ± 0.010 (0.762 ± 0.254) 0.065 (1.65) 0.145 (3.68) 0.160 (4.06) Rated Power in % DERATING 120 100 80 60 40 20 0 - 65 - 50 - 25 0 25 50 75 70 100 125 150 170 Ambient Temperature in °C PERFORMANCE TEST TEST LIMITS CONDITIONS OF TEST 0.25 % 0.5 % Thermal shock - 55 °C to + 150 °C, 1000 cycles, 15 min at each extreme ± (0.5 % + 0.005 ) R Short time overload 5 x rated power for 5 s for WSL2512 size or smaller ± (0.5 % + 0.005 ) R Low temperature operation - 65 °C for 45 min ± (0.5 % + 0.005 ) R High temperature exposure 1000 h at + 170 °C ± (1.0 % + 0.005 ) R Bias humidity + 85 °C, 85 % RH, 10 % bias, 1000 h ± (0.5 % + 0.005 ) R Mechanical shock 100 g’s for 6 ms, 5 pulses ± (0.5 % + 0.005 ) R Vibration Frequency varied 10 Hz to 2000 Hz in 1 min, 3 directions, 12 h ± (0.5 % + 0.005 ) R Load life 2000 h at 70 °C, 1.5 h “ON”, 0.5 h “OFF” Resistance to solder heat + 260 °C solder, 10 s to 12 s dwell, 25 mm/s emergence ± (0.5 % + 0.005 ) R Moisture resistance MIL-STD-202, method 106, 0 % power, 7b not required ± (0.5 % + 0.005 ) R ± 0.25 % R ± 0.5 % R PACKAGING MODEL WSLS2512 REEL TAPE WIDTH DIAMETER PIECES/REEL CODE 12 mm/embossed plastic 178 mm/7" 2000 EA Note • Embossed Carrier Tape per EIA-481. Revision: 05-Mar-14 Document Number: 30123 2 For technical questions, contact: [email protected] 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 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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Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as Halogen-Free follow Halogen-Free requirements as per JEDEC JS709A standards. Please note that some Vishay documentation may still make reference to the IEC 61249-2-21 definition. We confirm that all the products identified as being compliant to IEC 61249-2-21 conform to JEDEC JS709A standards. Revision: 02-Oct-12 1 Document Number: 91000