FVOT Datasheet

FVOT
www.vishay.com
Vishay Huntington
Wirewound Resistor, Industrial Power,
Vitreous Coated, Miniature Flat
FEATURES
• High temperature vitreous 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
POWER RATING
P25 °C
W
HISTORICAL
MODEL
FVOT10
FVOT10-NI
FVOT15
FVOT15-NI
FVOT20
FVOT20-NI
FVOT-10
FVOT10-NI
FVOT-15
FVOT15-NI
FVOT-20
FVOT20-NI
10
15
20
RESISTANCE
RANGE

±5%
1.0 to 15K
1.0 to 1.8K
1.0 to 26K
1.0 to 3.6K
1.0 to 71K
1.0 to 9.8K
RESISTANCE
RANGE

± 10 %
0.10 to 15K
1.0 to 1.8K
0.10 to 26K
1.0 to 3.6K
0.10 to 71K
1.0 to 9.8K
WEIGHT
(typical)
g
0.41
0.47
0.74
TECHNICAL SPECIFICATIONS
PARAMETER
Temperature Coefficient
Short Time Overload
Dielectric Withstanding Voltage
UNIT
FVOT RESISTOR CHARACTERISTICS
ppm/°C
± 260 for 20  and above, ± 400 for 1  to 20 ,
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
GLOBAL PART NUMBER INFORMATION
Global Part Numbering example: FVOT2011E25R00JE (visit www.vishay.com SAP parts manual for all options)
F
V
O
GLOBAL MODEL
(6 digits)
T
2
0
1
TERMINAL
DESIGNATION
(2 digits)
TERMINAL
FINISH
(1 digit)
11
E = Lead
(Pb)-free
(See Standard
Electrical
Specifications
Global Model
column for
options)
1
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 
1K500 = 1.5 k
J=±5%
K = ± 10 %
E = Lead (Pb)-free
cell and bulk pack
(Dash number)
From 1 to 99 as
applicable
NI = Non-inductive
Historical Part Number example: FVOT-20-25-5 %
FVOT-20
25 
5%
HISTORICAL MODEL
RESISTANCE VALUE
TOLERANCE
Revision: 03-Jun-15
SPECIAL
Document Number: 31848
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
FVOT
www.vishay.com
Vishay Huntington
DIMENSIONS in inches [millimeters]
Distance
center to center
DIMENSIONS in inches [millimeters]
A
± 0.063
[1.59]
B
± 0.063
[1.59]
C
± 0.031
[0.79]
DDISTANCE
CENTER TO
CENTER
(REF.)
STANDARD
TERMINAL
DESIGNATION
FVOT10
0.750
[19.05]
1.312
[33.32]
1.000
[25.40]
0.531
[13.49]
11
FVOT15
1.000
[25.40]
1.562
[31.75]
1.250
[31.75]
0.781
[19.84]
11
FVOT20
2.062
[52.37]
2.552
[64.83]
2.312
[58.72]
1.843
[46.81]
11
MODEL
TERMINAL DIMENSIONS
MATERIAL SPECIFICATIONS
D
Element: Copper-nickel alloy or nickel-chrome alloy,
depending on resistance value
G
E
Core: Ceramic, steatite or cordierite
Style 11
F
Coating: Special high temperature vitreous
Standard Terminals: Tinned alloy 42
DIMENSIONS in inches [millimeters]
DIMENSIONS
STYLE 11
Terminal Bands: Alloy 42
Part Marking: HEI, model, wattage, value, tolerance, date
code
D
0.125 [3.18]
E
(HOLE DIAMETER)
0.081 [2.10]
F
0.235 [5.97]
NON-INDUCTIVE
G
0.020 [0.51]
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.
RATED POWER IN %
DERATING
120
100
80
60
40
20
0
- 65 - 50
0
50
150
250
350
25
AMBIENT TEMPERATURE IN °C
Revision: 03-Jun-15
Document Number: 31848
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
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www.vishay.com
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Revision: 02-Oct-12
1
Document Number: 91000