SPU Molded Style
www.vishay.com
Vishay Dale
Wirewound Resistors, Molded Style, Current Shunts,
Very Low Value, Four Terminal
FEATURES
• Molded four-terminal resistors for specialized
applications
• Extremely low resistance values for current
sensing applications
• Precision resistance tolerance
• Low temperature coefficients
• Complete welded construction
• Material categorization: For definitions of compliance
please see
www.vishay.com/doc?99912
Available
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
SPU050
SPU051
SPU052
SPU053
HISTORICAL
MODEL
SPU-50
SPU-51
SPU-52
SPU-53
POWER RATING
(1)
P
25 °C
W
1
2
4
5
RESISTANCE
RANGE
0.001 to 0.060
0.001 to 0.060
0.001 to 0.200
0.010 to 0.500
TOLERANCE
±%
1
1
1
1
WEIGHT
(typical)
g
2.5
3.7
4.8
10.8
Notes
• Standard resistance tolerances available are 0.5 %, 1.0 %, 3.0 %, and 5.0 %.
(1)
Wattage rating is limited to 25 A maximum
TECHNICAL SPECIFICATIONS
PARAMETER
Temperature Coefficient
Dielectric Withstanding Voltage
Short Time Overload
Maximum Working Voltage
Insulation Resistance
Operating Temperature Range
UNIT
ppm/°C
V
AC
-
V
°C
SPU MOLDED STYLE RESISTOR CHARACTERISTICS
± 100 (- 10 °C to + 80 °C)
500 minimum
5 x power for 5 s, limited to 25 A maximum
(P x
R)
1/2
10 000 M minimum dry
SPU050 and SPU051 = - 55 to + 175, SPU052 and SPU053 = - 55 to + 275
GLOBAL PART NUMBER INFORMATION
Global Part Numbering example: SPU052R10000FD
S
GLOBAL MODEL
SPU050
SPU051
SPU052
SPU053
P
U
0
5
2
R
1
0
0
0
0
F
D
SPECIAL
(Dash Number)
(up to 2 digits)
From
1 to 99
as
applicable
RESISTANCE VALUE
L
= m
(below 0.01
)
R
= Decimal
5L0000
= 0.005
R10000
= 0.10
TOLERANCE CODE
D
= ± 0.5 %
F
= ± 1.0 %
H
= ± 3.0 %
J
= ± 5.0 %
E
(2)
PACKAGING
= Lead (Pb)-free, bulk
D
= Tin/lead, bulk
Historical Part Numbering example: SPU-52 0.1
1 % S51
SPU-52
HISTORICAL MODEL
Note
(2)
Lead (Pb)-free termination
Revision: 11-Jul-13
Document Number: 30220
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
0.100
RESISTANCE VALUE
1%
TOLERANCE CODE
S51
PACKAGING
SPU Molded Style
www.vishay.com
DIMENSIONS
in inches [millimeters]
D
A
B
18 AWG
0.040 ± 0.002
[1.02 ± 0.051]
C
Vishay Dale
GLOBAL
MODEL
SPU050
SPU051
SPU052
SPU053
DIMENSIONS
in inches [millimeters]
A
0.660 ± 0.010
[16.76 ± 0.25]
0.790 ± 0.010
[20.06 ± 0.25]
1.000 ± 0.010
[25.40 ± 0.25]
1.870 ± 0.010
[47.50 ± 0.25]
B
0.312 ± 0.010
[7.92 ± 0.25]
0.375 ± 0.010
[9.52 ± 0.25]
0.375 ± 0.010
[9.52 ± 0.25]
0.437 ± 0.010
[11.10 ± 0.25]
C
0.200 ± 0.015
[5.08 ± 0.38]
0.200 ± 0.015
[5.08 ± 0.38]
0.125 ± 0.015
[3.17 ± 0.38]
0.125 ± 0.015
[3.17 ± 0.38]
D
1.000 + 0.25 - 0.125
[25.40 + 6.35 - 3.17]
1.000 + 0.25 - 0.125
[25.40 + 6.35 - 3.17]
1.000 minimum
[25.40 minimum]
1.000 minimum
[25.40 minimum]
MATERIAL SPECIFICATIONS
Element:
Nickel-chromium alloy or copper-manganese
alloy, depending on resistance value
Molding Material:
SPU050/051
SPU052/053 thermo-set silicone
thermo-set
epoxy
Standard Terminals:
SPU050/051: 100 % Sn or 60/40
Sn/Pb coated Copperweld
®
SPU052/053: 100 % Sn or 60/40 Sn/Pb coated copper
Part Marking:
DALE, model, wattage, value, tolerance,
date code
AMBIENT TEMPERATURE DERATING
Derating is required for ambient temperature above 25 °C per the following graph
DERATING
RATED POWER IN %
120
100
80
60
40
SPU050 and 051
20
0
- 55 - 50
SPU052 and 053
0
25
50
100
150
175
200
250
275
AMBIENT TEMPERATURE IN
°
C
Revision: 11-Jul-13
Document Number: 30220
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
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
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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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