FSOT www.vishay.com Vishay Huntington Wirewound Resistor, Industrial Power, Silicone Coated, Standard Oval FEATURES • High temperature silicone coating • Mounting accommodations ideally suited to high density packaging • Available in non-inductive style (special “NI”) with Ayrton-Perry winding • Self-stacking hardware vertical placement for horizontal or • Mounting hardware functions as a heat sink allowing greater heat dissipation and less derating of stacked units • Material categorization: for definitions of compliance please see www.vishay.com/doc?99912 STANDARD ELECTRICAL SPECIFICATIONS GLOBAL MODEL POWER RATING P25 °C W HISTORICAL MODEL RESISTANCE RANGE Ω RESISTANCE RANGE Ω WEIGHT (typical) g ±5% ± 10 % 10 1.0 to 15K 1.0 to 1.8K 0.10 to 15K 1.0 to 1.8K 0.41 FSOT-15 FSOT-15-NI 15 1.0 to 26K 1.0 to 3.6K 0.10 to 26K 1.0 to 3.6K 0.47 FSOT20 FSOT20-NI FSOT-20 FSOT-20-NI 20 1.0 to 71K 1.0 to 9.8K 0.10 to 71K 1.0 to 9.8K 0.74 FSOT30 FSOT30-NI FSOT-30 FSOT-30-NI 30 1.0 to 11K 1.0 to 1.2K 0.10 to 11K 1.0 to 1.2K 20.14 FSOT40 FSOT40-NI FSOT-40 FSOT-40-NI 40 1.0 to 26K 1.0 to 3K 0.10 to 26K 1.0 to 3K 30.07 FSOT55 FSOT55-NI FSOT-55 FSOT-55-NI 55 1.0 to 54K 1.0 to 6.8K 0.10 to 54K 1.0 to 6.8K 51.25 FSOT65 / FSOT70 (1) FSOT65-NI / FSOT70-NI (1) FSOT-65 FSOT-65-NI 70 1.0 to 77K 1.0 to 9.4K 0.10 to 77K 1.0 to 9.4K 60.48 FSOT75 / FSOT95 (1) FSOT75-NI / FSOT95-NI (1) FSOT-75 FSOT-75-NI 95 1.0 to 99.9K 1.0 to 12.4K 0.10 to 99.9K 1.0 to 12.4K 76.51 FSOT10 FSOT10-NI FSOT-10 FSOT-10-NI FSOT15 FSOT15-NI Note (1) The preferred Models are the FSOT70 and FSOT95. FSOT65 and FSOT75 are being shown as they have historically been used for these two wattages. TECHNICAL SPECIFICATIONS PARAMETER Temperature Coefficient Short Time Overload UNIT FSOT RESISTOR CHARACTERISTICS ppm/°C ± 260 for 20 Ω and above, ± 400 for 1 Ω to 20 Ω, special TC’s available - 10 x rated power for 5 s VAC 1000, from terminal to mounting hardware Maximum Working Voltage V (P x R)1/2 Operating Temperature Range °C -55 to +350 Dielectric Withstanding Voltage Revision: 12-Nov-15 Document Number: 31847 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 FSOT www.vishay.com Vishay Huntington GLOBAL PART NUMBER INFORMATION Global Part Numbering example: FSOT5509E25R00JE (visit www.vishay.net SAP parts manual for all options) F S O GLOBAL MODEL (6 digits) T 5 5 0 TERMINAL DESIGNATION (2 digits) TERMINAL FINISH (1 digit) 09 11 16 E = lead (Pb)-free (see Standard Electrical Specifications Global Model column for options) 9 E 2 5 R 0 0 J E VALUE (5 digits) TOLERANCE (1 digit) PACKAGING CODE (1 digit) SPECIAL (up to 2 digits) R = decimal K = thousand 1R500 = 1.5 Ω 1K500 = 1.5 kΩ J=±5% K = ± 10 % E = lead (Pb)-free cell and bulk pack (dash number) from 1 to 99 as applicable CT = center tap NI = non-inductive Historical Part Number example: FSOT-55-25-5 % FSOT-20 25 Ω 5% HISTORICAL MODEL RESISTANCE VALUE TOLERANCE SPECIAL DIMENSIONS in inches [millimeters] FSOT10 / FSOT15 / FSOT30 FSOT30 / FSOT40 / FSOT55 / FSOT65 / FSOT70 / FSOT75 / FSOT95 Distance center to center Distance center to center MODEL A ± 0.063 [1.59] B ± 0.063 [1.59] C ± 0.031 [0.79] DISTANCE CENTER TO CENTER (REF.) FSOT10 0.750 [19.05] 1.312 [33.32] 1.000 [25.40] FSOT15 1.000 [25.40] 1.562 [39.67] FSOT20 2.062 [52.37] FSOT30 TERMINAL DESIGNATION STANDARD OPTIONAL (QUICK CONNECT) 0.531 [13.49] 11 - 1.250 [31.75] 0.781 [19.84] 11 - 2.625 [66.68] 2.312 [58.72] 1.843 [46.81] 11 - 1.250 [31.75] 2.500 [63.50] 2.000 [50.8] 0.906 [23.01] 09 16 FSOT40 2.000 [50.8] 3.250 [82.55] 2.750 [69.85] 1.656 [42.06] 09 16 FSOT55 3.500 [88.90] 4.750 [120.65] 4.250 [107.95] 3.156 [80.16] 09 16 FSOT65 / FSOT70 (1) 4.750 [120.65] 6.000 [152.4] 5.500 [139.7] 4.406 [111.91] 09 16 FSOT75 / FSOT95 (1) 6.000 [152.4] 7.250 [184.15] 6.750 [171.45] 5.656 [143.66] 09 16 Note (1) The preferred Models are the FSOT70 and FSOT95. FSOT65 and FSOT75 are being shown as they have historically been used for these two wattages. Revision: 12-Nov-15 Document Number: 31847 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 FSOT www.vishay.com Vishay Huntington TERMINAL DIMENSIONS D G D E F Style 09, 11 DIMENSIONS G E Style 16 F STYLE 09 STYLE 11 STYLE 16 D 0.188 [4.76] 0.125 [3.18] 0.188 [4.76] E (HOLE DIAMETER) 0.106 [2.69] 0.081 [2.10] 0.050 [1.27] F 0.438 [11.13] 0.235 [5.97] 0.563 [14.30] G 0.020 [0.51] 0.020 [0.51] 0.020 [0.51] RATED POWER IN % DERATING 120 100 80 60 40 20 0 - 65 - 50 0 50 150 250 350 25 AMBIENT TEMPERATURE IN °C MATERIAL SPECIFICATIONS NON-INDUCTIVE Element: copper-nickel alloy or nickel-chrome alloy, depending on resistance value Models of equivalent physical and electrical specifications are available with non-inductive (Ayrton-Perry) winding. They are identified by adding the letters “NI” to the end of the part number in the special section. For non-inductive models the maximum resistance values are lower, see Standard Electrical Specifications Table. Core: ceramic, steatite Coating: special high temperature silicone Standard Terminals: tinned alloy 42 Optional Terminals (Quick Connect): alloy 42 Terminal Bands: alloy 42 Part Marking: HEI, model, wattage, value, tolerance, date code Revision: 12-Nov-15 Document Number: 31847 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. 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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