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FSOT Datasheet, PDF (1/4 Pages) Vishay Siliconix – High temperature silicone coating
www.vishay.com
FSOT
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 for horizontal or
vertical placement
• 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
HISTORICAL
MODEL
POWER RATING
P25 °C
W
RESISTANCE
RANGE

±5%
RESISTANCE
RANGE

± 10 %
WEIGHT
(typical)
g
FSOT10
FSOT10-NI
FSOT-10
FSOT-10-NI
10
1.0 to 15K
1.0 to 1.8K
0.10 to 15K
1.0 to 1.8K
0.41
FSOT15
FSOT15-NI
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
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
UNIT
Temperature Coefficient
ppm/°C
Short Time Overload
-
Dielectric Withstanding Voltage
VAC
Maximum Working Voltage
V
Operating Temperature Range
°C
FSOT RESISTOR CHARACTERISTICS
± 260 for 20  and above, ± 400 for 1  to 20 ,
special TC’s available
10 x rated power for 5 s
1000, from terminal to mounting hardware
(P x R)1/2
-55 to +350
Revision: 22-Jul-16
1
Document Number: 31847
For technical questions, contact: ww2dresistors@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