FSTL, FSTS, FSWL
www.vishay.com
Vishay Huntington
Wirewound Resistor, Industrial Power,
Silicone Coated, Tubular
FEATURES
• High temperature silicone coating
• Complete welded construction
• Excellent for intermittent power and pulsing
application
• Available in non-inductive style (special “NI”)
with Ayrton-Perry winding
• Various lead and terminal options
• Excellent stability in operation (< 3 % change
resistance)
• Material categorization: for definitions of
compliance please see
www.vishay.com/doc?99912
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
FSTL05
FSTS05
FSWL5A
FSTL5A
FSWL05
FSWL08
FSTL08
FSWL1A
FSTL10
FSTS10
FSWL10
FSWL12
FSTL12
FSWL15
FSTL15
FSWL2A
FSTL2A
FSTL20
FSTS20
FSWL20
HISTORICAL
MODEL
FSTL-5
FSTS-5
HLW-05
HLW-05
FSWL-5
HLW-06
HLW-06
HLW-10
FSTL-10
FSTS-10
FSWL-10
HLW-12
HLW-12
HLW-15
HLW-15
HLW-20
HLW-20
FSTL-20
FSTS-20
FSWL-20
POWER RATING
P
25 °C
W
5
5
5.25
5.25
8
8
8
10
12
12
12
12
12
15
15
20
20
20
20
20
RESISTANCE
RANGE
±5%
1.0 to 20.5K
1.0 to 20.5K
1.0 to 15K
1.0 to 15K
1.0 to 20.5K
1.0 to 20.5K
1.0 to 20.5K
1.0 to 29K
1.0 to 58K
1.0 to 58K
1.0 to 58K
1.0 to 58K
1.0 to 58K
1.0 to 60K
1.0 to 60K
1.0 to 95K
1.0 to 95K
1.0 to 95K
1.0 to 95K
1.0 to 95K
RESISTANCE
RANGE
± 10 %
0.1 to 20.5K
0.1 to 20.5K
0.10 to 15K
0.10 to 15K
0.1 to 20.5K
0.10 to 20.5K
0.10 to 20.5K
0.10 to 29K
0.10 to 58K
0.10 to 58K
0.10 to 58K
0.10 to 58K
0.10 to 58K
0.10 to 60K
0.10 to 60K
0.10 to 95K
0.10 to 95K
0.10 to 95K
0.10 to 95K
0.10 to 95K
WEIGHT
(typical)
g
4.60
4.60
2.12
2.12
4.60
4.60
4.60
6.24
6.69
6.69
6.69
6.69
6.69
8.82
8.82
11.36
11.36
12.57
12.57
12.57
TECHNICAL SPECIFICATIONS
PARAMETER
Temperature Coefficient
Short Time Overload
Dielectric Withstanding Voltage
Maximum Working Voltage
Operating Temperature Range
UNIT
ppm/°C
-
V
AC
V
°C
FST RESISTOR CHARACTERISTICS
± 260 for 20
and above, ± 400 for 1
to 20
,
special TC’s available please contact factory
10 x rated power for 5 s
1000, from terminal to mounting hardware
(P x
R)
1/2
-55 to +350
Revision: 02-May-16
Document Number: 31839
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
FSTL, FSTS, FSWL
www.vishay.com
Vishay Huntington
GLOBAL PART NUMBER INFORMATION
Global Part Numbering example: FSTL05R2E25R00JE
(visit
www.vishay.net
SAP parts manual for all options)
F
S
T
L
0
5
R
2
E
2
5
R
0
0
J
E
SPECIAL
(up to 2 digits)
(dash number)
from
1
to
99
as
applicable
CT
= center tap
NI
= non-inductive
GLOBAL MODEL
(6 digits)
(see Standard
Electrical
Specifications
Global Model
column for
options)
TERMINAL
DESIGNATION
(2 digits)
A1
A2
R1
R2
TERMINAL
FINISH
(1 digit)
E
= lead
(Pb)-free
VALUE
(5 digits)
R
= decimal
K
= thousand
1R500
= 1.5
1K500
= 1.5 k
TOLERANCE
(1 digit)
J
=±5%
K
= ± 10 %
PACKAGING CODE
(1 digit)
E
= lead (Pb)-free
bulk pack
FSTL/FSWL products
to be lead (PB)-free
foam packed.
Historical Part Number example: FSTL-5-25-5 %
FSTL-5
HISTORICAL MODEL
25
RESISTANCE VALUE
5%
TOLERANCE
SPECIAL
DERATING
RATED POWER IN %
120
100
80
60
40
20
0
- 65 - 50
0
25
50
150
250
350
AMBIENT TEMPERATURE IN °C
MATERIAL SPECIFICATIONS
Element:
copper-nickel alloy or nickel-chrome alloy,
depending on resistance value
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
NON-INDUCTIVE
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.
Revision: 02-May-16
Document Number: 31839
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
FSTL, FSTS, FSWL
www.vishay.com
Vishay Huntington
DIMENSIONS
in inches [millimeters]
CORE DIMENSIONS (REF.)
MODEL
A
0.313
[7.94]
0.313
[7.94]
0.250
[6.35]
0.250
[6.35]
0.313
[7.94]
0.313
[7.94]
0.313
[7.94]
0.438
[11.11]
0.313
[7.94]
0.313
[7.94]
0.313
[7.94]
0.313
[7.94]
0.313
[7.94]
0.438
[11.11]
0.438
[11.11]
0.438
[11.11]
0.438
[11.11]
0.438
[11.11]
0.438
[11.11]
0.438
[11.11]
B
0.188
[4.76]
0.188
[4.76]
0.125
[3.18]
0.125
[3.18]
0.188
[4.76]
0.188
[4.76]
0.188
[4.76]
0.313
[7.94]
0.188
[4.76]
0.188
[4.76]
0.188
[4.76]
0.188
[4.76]
0.188
[4.76]
0.313
[7.94]
0.313
[7.94]
0.313
[7.94]
0.313
[7.94]
0.260
[6.604]
0.260
[6.604]
0.260
[6.604]
C
1.000
[25.40]
1.000
[25.40]
0.625
[15.88]
0.625
[15.88]
1.000
[25.40]
1.000
[25.40]
1.000
[25.40]
1.000
[25.40]
1.750
[44.45]
1.750
[44.45]
1.750
[44.45]
1.750
[44.45]
1.750
[44.45]
1.500
[38.10]
1.500
[38.10]
2.000
[50.80]
2.000
[50.80]
2.000
[50.8]
2.000
[50.8]
2.000
[50.8]
D
± 0.005
[± 0.12]
0.188
[4.78]
0.188
[4.78]
0.063
[1.59]
0.063
[1.59]
0.125
[3.175]
0.125
[3.18]
0.125
[3.18]
0.125
[3.18]
0.188
[4.78]
0.188
[4.78]
0.125
[3.175]
0.125
[3.18]
0.125
[3.18]
0.125
[3.18]
0.125
[3.18]
0.125
[3.18]
0.125
[3.18]
0.188
[4.78]
0.188
[4.78]
0.125
[3.175]
E
± 0.015
[± 0.38]
0.406
[10.31]
0.406
[10.31]
0.188
[4.76]
typ.
0.188
[4.76]
typ.
0.188
[4.78]
0.188
[4.76]
typ.
0.188
[4.76]
typ.
0.188
[4.76]
typ.
0.406
[10.31]
0.406
[10.31]
0.188
[4.78]
0.188
[4.76]
typ.
0.188
[4.76]
typ.
0.188
[4.76]
typ.
0.188
[4.76]
typ.
0.188
[4.76]
typ.
0.188
[4.76]
typ.
0.406
[10.32]
0.406
[10.32]
0.188
[4.78]
FSTL05
FSTS05
FSWL5A
FSTL5A
FSWL05
FSWL08
FSTL08
FSWL1A
FSTL10
FSTS10
FSWL10
FSWL12
FSTL12
FSWL15
FSTL15
FSWL2A
FSTL2A
FSTL20
FSTS20
FSWL20
TERMINAL
F
± 0.005
[± 0.12]
0.132
[3.35]
0.132
[3.35]
n/a
n/a
n/a
n/a
n/a
n/a
0.132
[3.35]
0.132
[3.35]
n/a
n/a
n/a
n/a
n/a
n/a
n/a
0.133
[3.37]
0.133
[3.37]
n/a
LEADS
DESIGNATION
R2
R2
A2
R2
A2
A1
R1
A1
R1
R1
A1
A1
R1
A1
R1
A1
R1
R1
R1
A1
G
± 0.002
[± 0.05]
0.032
[0.813]
0.032
[0.813]
0.032
[0.813]
0.032
[0.813]
0.032
[0.813]
0.040
[1.02]
0.040
[1.02]
0.040
[1.02]
0.040
[1.02]
0.040
[1.02]
0.040
[1.02]
0.040
[1.02]
0.040
[1.02]
0.040
[1.02]
0.040
[1.02]
0.040
[1.02]
0.040
[1.02]
0.040
[1.02]
0.040
[1.02]
0.040
[1.02]
H
± 0.125
[± 3.18]
2.90
[73.66]
1.50
[38.10]
1.50
[38.10]
1.50
[38.10]
1.50
[38.10]
1.50
[38.10]
1.50
[38.10]
1.50
[38.10]
2.90
[73.66]
1.50
[38.10]
1.50
[38.10]
1.50
[38.10]
1.50
[38.10]
1.50
[38.10]
1.50
[38.10]
1.50
[38.10]
1.50
[38.10]
1.65
[41.91]
1.50
[38.10]
1.50
[38.10]
203
203
203
209
209
209
209
BRACKET
TYPE
209
209
Revision: 02-May-16
Document Number: 31839
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.
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. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
purpose, non-infringement and merchantability.
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
technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,
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
applications or for any other application in which the failure of the Vishay product could result in personal injury or death.
Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk.
Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for
such applications.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document
or by any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners.
Revision: 13-Jun-16
1
Document Number: 91000
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