SR
www.vishay.com
Vishay Dale
Wirewound Resistors, Open Air, Current Sense, Low Value
FEATURES
• Open air design
• Low resistance values for all types of current
Available
sensing,
voltage
division
and
pulse
applications including switching and linear
supplies, instrumentation and power amplifiers
• All welded construction
Available
• Solid metal nickel-chrome or copper-nickel
alloy resistive element
Available
• Solderable terminations
• Very low inductance
• Material categorization: for definitions of compliance
please see
www.vishay.com/doc?99912
Note
*
This datasheet provides information about parts that are RoHS-compliant and / or parts that are non RoHS-compliant. For example, parts
with lead (Pb) terminations are not RoHS-compliant. Please see the information / tables in this datasheet for details
STANDARD ELECTRICAL SPECIFICATIONS
MODEL
SR3
SR5
POWER RATING
P
70 °C
W
3.0
5.0
RESISTANCE RANGE
0.0025 to 0.10
0.0025 to 0.05
TOLERANCE
±%
1, 2, 3, 5, 10
1, 2, 3, 5, 10
TECHNICAL SPECIFICATIONS
PARAMETER
Temperature Coefficient
+25°C / -55°C;
+25°C / +125°C
Operating Temperature Range
Maximum Continuous Current
UNIT
SR RESISTOR CHARACTERISTICS
± 400 = 0.0025
to 0.0199
;
± 300 = 0.02
to 0.049
;
± 250 = 0.05
to 0.99
;
± 200 = 0.1
and above
-65 to +275
(P/R)
1/2
ppm/°C
°C
A
GLOBAL PART NUMBER INFORMATION
Global Part Numbering example: SR55L000JE66
S
R
5
5
L
0
0
0
J
E
6
6
GLOBAL MODEL
SR3
SR5
VALUE
L
= m
(below 0.01
)
R
= decimal
5L000
= 0.005
R0100
= 0.01
TOLERANCE
F
= ± 1.0 %
G
= ± 2.0 %
H
= ± 3.0 %
J
= ± 5.0 %
K
= ± 10 %
PACKAGING
E66
= lead (Pb)-free bulk
SPECIAL
(dash number)
(up to 3 digits)
from
1 to 999
as
applicable
Revision: 20-Sep-2018
Document Number: 31067
1
For technical questions, contact:
ww2aresistors@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
SR
www.vishay.com
DIMENSIONS
in inches [millimeters]
Vishay Dale
B
C
A
E
F
MODEL
SR3
DIMENSIONS
in inches [millimeters]
A
0.600 + 0.040/- 0.020
[15.24 + 1.020/- 0.508]
0.800 + 0.040/- 0.020
[20.32 + 1.020/- 0.508]
B
C
E
F
1.0 maximum
[25.4 maximum]
0.125 ± 0.030
[3.18 ± 0.762]
0.065 + 0.010/- 0.005
[1.65 + 0.254/- 0.127]
0.040 ± 0.002
[1.02 ± 0.051]
SR5
MATERIAL SPECIFICATIONS
Element:
nickel-chrome or copper-nickel alloy depending
on resistance value
Terminals:
tinned copper
Encapsulation:
none
Marking:
none
DERATING
RATED POWER IN %
120
100
80
60
40
20
0
- 65
- 25
25
125
175
225
275
75
70
AMBIENT TEMPERATURE IN °C
PERFORMANCE
TEST
Temperature Cycling
Low Temperature Storage
Mechanical Shock
Vibration
Load Life
Resistance to Solder Heat
Short Time Overload
Damp Heat
CONDITIONS OF TEST
-55 °C to +125 °C, 5 cycles, 15 min at each extreme
-65 °C for 24 h
100
g’s
for 11 ms, 5 pulses
Frequency varied 10 Hz to 2000 Hz in 1 min, 3 directions, 12 h
1000 h at rated power, +70 °C, 1.5 h “ON”, 0.5 h “OFF”
+260 °C solder, 10 s to 12 s dwell
5x rated power for 5 s
103B of MIL 202F and test condition “D”,
humidity chamber per 1300 h
TEST LIMITS
± (2.0 % + 0.0005
) R
± (0.5 % + 0.0005
) R
± (0.2 % + 0.0005
) R
± (0.2 % + 0.0005
) R
± (2.75 % + 0.0005
) R
± (0.2 % + 0.0005
) R
± (1.25 % + 0.0005
) R
± (0.5 % + 0.0005
) R
no mechanical damage
Revision: 20-Sep-2018
Document Number: 31067
2
For technical questions, contact:
ww2aresistors@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
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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
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© 2017 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED
Revision: 08-Feb-17
1
Document Number: 91000
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