SPU Molded Style
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
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
Ω
±1%
0.001 - 0.060
0.001 - 0.060
0.001 - 0.200
0.010 - 0.500
WEIGHT
(typical)
g
2.5
3.7
4.8
10.8
Notes
(1)
Wattage rating is limited to 25 A maximum
• Resistance tolerance available is 0.1 %, 0.25 %, 0.5 %, 1.0 %, 3.0 % and 5.0 % depending on resistor physical design and resistance value
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
Ω
°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 MΩ minimum dry
SPU-50 and SPU-51 = - 55 to + 175, SPU-52 and SPU-53 = - 55 to + 275
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: SPU052R10000FD (preferred part numbering format)
S
GLOBAL
MODEL
SPU052
P
U
0
5
2
R
1
0
0
0
0
F
D
SPECIAL
RESISTANCE
VALUE
L
= mΩ
(below 0.01
Ω
)
R
= Decimal
5L0000
= 0.005
Ω
R10000
= 0.10
Ω
TOLERANCE
CODE
F
= ± 1.0
%
J
= ± 5.0
%
PACKAGING
E*
= Lead (Pb)-free,
bulk
D
= Tin/lead,
bulk
(Dash
Number)
(up to 2 digits)
From
1 - 99
* Lead (Pb)-free
will
not
be
available
until
Q1 2005
as applicable
Historical Part Number Example: SPU-52 0.1
Ω
1
%
S51 (will continue to be accepted)
SPU-052
HISTORICAL MODEL
0.100
Ω
RESISTANCE
VALUE
1
%
TOLERANCE CODE
S51
PACKAGIN G
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For technical questions, contact: ww2bresistors@vishay.com
Document Number: 30220
Revision: 11-Sep-04
SPU Molded Style
Wirewound Resistors, Molded Style, Current Shunts,
Very Low Value, Four Terminal
DIMENSIONS
in inches [millimeters]
Vishay Dale
D
A
B
18 AWG
0.040 ± 0.002
[1.02 ± 0.051]
C
GLOBAL
MODEL
SPU050
SPU051
SPU052
SPU053
Note
• Limited to 25 A maximum
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
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
Derating
AMBIENT TEMPERATURE IN
°
C
Document Number: 30220
Revision: 11-Sep-04
For technical questions, contact: ww2bresistors@vishay.com
www.vishay.com
167
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Vishay
Disclaimer
All product specifications and data are subject to change without notice.
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 herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
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.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
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Document Number: 91000
Revision: 18-Jul-08
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