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: 03-May-17
Document Number: 31847
1
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
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
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 / FSOT20
FSOT30 / FSOT40 / FSOT55 / FSOT65 / FSOT70 / FSOT75 / FSOT95
Distance
center to center
Distance
center to center
TERMINAL DESIGNATION
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]
0.531
[13.49]
11
FSOT15
1.000
[25.40]
1.562
[39.67]
1.250
[31.75]
0.781
[19.84]
11
FSOT20
2.062
[52.37]
2.625
[66.68]
2.312
[58.72]
1.843
[46.81]
11
FSOT30
1.250
[31.75]
2.500
[63.50]
2.000
[50.8]
0.906
[23.01]
09
FSOT40
2.000
[50.8]
3.250
[82.55]
2.750
[69.85]
1.656
[42.06]
09
FSOT55
3.500
[88.90]
4.750
[120.65]
4.250
[107.95]
3.156
[80.16]
09
FSOT65 / FSOT70 (1)
4.750
[120.65]
6.000
[152.4]
5.500
[139.7]
4.406
[111.91]
09
FSOT75 / FSOT95 (1)
6.000
[152.4]
7.250
[184.15]
6.750
[171.45]
5.656
[143.66]
09
STANDARD
OPTIONAL
(QUICK CONNECT)
For Quick Connect terminal
option, use FSOTXX...16/17
(www.vishay.com/doc?30337)
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: 03-May-17
Document Number: 31847
2
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
FSOT
www.vishay.com
Vishay Huntington
TERMINAL DIMENSIONS
D
G
E
Style 09, 11
F
For Quick Connect terminal option, use FSOTXX...16/17 (www.vishay.com/doc?30337)
DIMENSIONS
STYLE 09
STYLE 11
D
0.188 [4.76]
0.125 [3.18]
E
(HOLE DIAMETER)
0.106 [2.69]
0.081 [2.10]
F
0.438 [11.13]
0.235 [5.97]
G
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
Terminal Bands: alloy 42
Part Marking: HEI, model, wattage, value, tolerance, date
code
Revision: 03-May-17
Document Number: 31847
3
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
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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“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.
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the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
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Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of
typical requirements that are often placed on Vishay products in generic applications. Such statements are not binding
statements about the suitability of products for a particular application. It is the customer’s responsibility to validate that a
particular product with the properties described in the product specification is suitable for use in a particular application.
Parameters provided in datasheets and / or specifications may vary in different applications and performance may vary over
time. All operating parameters, including typical parameters, must be validated for each customer application by the customer’s
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including but not limited to the warranty expressed therein.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
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Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for
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© 2017 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED
Revision: 08-Feb-17
1
Document Number: 91000
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Vishay:
FSOT5509E50R00JE FSOT4009E8R000JE FSOT3009E10R00JE FSOT3009E5R000JE FSOT3009E30R00JE
FSOT3009E40R00JE FSOT3009E2R000JE FSOT4009E10R00JE FSOT4009E250R0JE FSOT4009E75R00JE
FSOT3009E1K500JE FSOT4009E1K200JE FSOT4009E1R000JE FSOT4009E300R0JE FSOT3009E1R000JE
FSOT4009E3K000JE FSOT3009E25R00JE FSOT4009E30R00JE FSOT4009E2K000JE FSOT3009E1K000JE
FSOT4009E100R0JE FSOT9509E40R00JE FSOT5509E25R00JE FSOT9509E20R00JE FSOT5509E1R000JE
FSOT9509E16R00JE FSOT5509E250R0JE FSOT5509E75R00JE FSOT3009E100R0JE FSOT9509E25R00JE
FSOT9509E4R000JE FSOT5509E500R0JE FSOT5509E1K000JE FSOT5509E10R00JE FSOT4016E25R00JE
FSOT2011E12R00JE FSOT2011E5K000JE FSOT2011E3R000JE FSOT1511E4R000JE FSOT1011E24R00JE
FSOT2011E150R0JE FSOT2011E40R00JE FSOT1511E20R00JE FSOT1011E2R000JE FSOT1011E6K000JE
FSOT2011E25R00JE FSOT1011E10R00JE FSOT1011E50R00JE FSOT2011E1K300JE FSOT1011E200R0JE
FSOT1011E5K000JE FSOT1011E51R00JE FSOT2011E1R000JE FSOT2011E20R00JE FSOT1011E1K300JE
FSOT1011E27R00JE FSOT2011E200R0JE FSOT2011E2R000JE FSOT1011E400R0JE FSOT1011E100R0JE
FSOT2011E7R500JE FSOT1511E15R00JE FSOT2011E500R0JE FSOT1011E15R00JE FSOT4009E5K200JE
FSOT9509E5R000JE FSOT2011E100R0JE FSOT2011E1K000JE FSOT1011ER1500KE FSOT2011E10K00JE
FSOT1011ER2500KE FSOT4009E2K500JE FSOT5509E1K000KE FSOT4009E500R0KE FSOT1011E1K000KE
FSOT2011E25R00KE FSOT1011E10R00KE FSOT2011ER5000KE FSOT1011E100R0KE FSOT1011ER5000JE
FSOT6509E5R000JE FSOT5509E30R00JE FSOT5509E5R000JE FSOT5509E220R0JE FSOT3009E25R00KE
FSOT3009E1R000KE FSOT1011E1R000JE
