WSK1206 www.vishay.com Vishay Dale Power Metal Strip® Resistors, High Power, Surface Mount, 4-Terminal FEATURES • 4-terminal design • Ideal for all types of current sensing, voltage division and pulse applications • Proprietary processing technique produces extremely low resistance values • Durable with all-welded construction • All welded construction Available • Solid metal nickel-chrome or manganesecopper resistive element with low TCR (< 20 ppm/°C) Available • Low thermal EMF (< 3 μV/°C) • Material categorization: for definitions of compliance please see www.vishay.com/doc?99912 STANDARD ELECTRICAL SPECIFICATIONS GLOBAL MODEL SIZE WSK1206 1206 RESISTANCE VALUE RANGE POWER RATING P70 °C W Tol. ± 0.1 % Tol. ± 0.25 % Tol. ± 0.5 % Tol. ± 1.0 % 0.25 0.04 to 0.05 0.02 to 0.05 0.01 to 0.05 0.01 to 0.05 WEIGHT (typical) g/1000 pieces 16 Notes • Part marking: due to resistor size limitation, parts will be marked with only the resistance value. • Resistance values are available per WSL decade table (www.vishay.com/doc?30117). TECHNICAL SPECIFICATIONS PARAMETER UNIT RESISTOR CHARACTERISTICS Component temperature coefficient (including terminal) (1) ppm/°C ± 35 Element TCR (2) ppm/°C < 20 Operating temperature range °C -65 to +170 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. Revision: 28-Jan-16 Document Number: 30195 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 WSK1206 www.vishay.com Vishay Dale GLOBAL PART NUMBER INFORMATION Global Part Numbering example: WSK1206R0150FEA W S K 1 2 0 6 RESISTANCE VALUE GLOBAL MODEL WSK1206 R = decimal R0100 = 0.01 R 0 1 5 0 F E A TOLERANCE CODE PACKAGING CODE (1) SPECIAL B = ± 0.1 % C = ± 0.25 % D = ± 0.5 % F = ± 1.0 % EA = lead (Pb)-free, tape / reel EK = lead (Pb)-free, bulk (Dash number) (up to 2 digits) From 1 to 99 as applicable Note (1) 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. DIMENSIONS DIMENSIONS in inches (millimeters) MODEL WSK1206 L W H T A B 0.126 ± 0.010 (3.20 ±0.254) 0.063 ± 0.010 (1.60 ± 0.254) 0.025 ± 0.010 (0.635 ± 0.254) 0.020 ± 0.010 (0.508 ± 0.254) 0.023 ± 0.010 (0.584 ± 0.254) 0.018 ± 0.010 (0.457 ± 0.254) SOLDER PAD DIMENSIONS in inches (millimeters) MODEL WSK1206 Revision: 28-Jan-16 a b c d l 0.040 (1.01) 0.070 (1.778) 0.030 (0.762) 0.01 (0.254) 0.070 (1.778) Document Number: 30195 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 WSK1206 www.vishay.com Vishay Dale Rated Power in % DERATING 120 100 80 60 40 20 0 -65 -50 -25 0 25 50 70 100 125 150 170 Ambient Temperature in °C PERFORMANCE TEST CONDITIONS OF TEST TEST LIMITS Thermal shock -55 °C to +150 °C, 1000 cycles, 15 min at each extreme ± (0.5 %) R Short time overload 5x rated power for 5 s ± (0.5 %) R Low temperature operation -65 °C for 45 min ± (0.5 %) R High temperature exposure 1000 h at +170 °C ± (1.0 %) R Bias humidity +85 °C, 85 % RH, 10 % bias, 1000 h ± (0.5 %) R Mechanical shock 100 g’s for 6 ms, 5 pulses ± (0.5 %) R Vibration Frequency varied 10 Hz to 2000 Hz in 1 min, 3 directions, 12 h ± (0.5 %) R Load life 1000 h at +70 °C, 1.5 h “ON”, 0.5 h “OFF” ± (1.0 %) R Resistance to solder heat +260 °C solder, 10 s to 12 s dwell, 25 mm/s emergence ± (0.5 %) R Moisture resistance MIL-STD-202, method 106, 0 % power, 7b not required ± (0.5 %) R PACKAGING REEL MODEL WSK1206 TAPE WIDTH DIAMETER PIECES/REEL CODE 8 mm/embossed plastic 178 mm/7" 4000 EA Notes • Embossed carrier tape per EIA-481. • Wirewound, Metal Film, and Power Metal Strip® Packaging (www.vishay.com/doc?20051). Revision: 28-Jan-16 Document Number: 30195 3 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