SPU Open Style
Vishay Dale
Wirewound Resistors, Open Style, Current Shunts,
Custom Tailored, Very Low Value, High Precision
FEATURES
•
Custom-made four-terminal resistors to meet your
individual specifications
•
Extremely low resistance values for current sensing
applications
•
Precision resistance tolerance
•
Low temperature coefficients
•
Complete welded construction
`
The mechanical configurations and electrical properties of our shunts are made to your specifications. The following are
examples of “Typical Electrical Specifications” from several existing custom designs. Consult our engineering department for
help in designing your own configuration and/or electrical properties, see email address at the bottom of this page.
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
SPU104
SPU111...1
SPU114
HISTORICAL
MODEL
SPU-104
SPU-111-1
SPU-114
POWER RATING
P
25 °C
W
1.875
1
1
CURRENT RATING
(maximum)
A
25
10
10
RESISTANCE RANGE
Ω
±1%
0.0025 - 0.010
0.005
0.00167 - 0.020
Note
• 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
Resistance Range
Maximum Current Rating
Operating Temperature Range
UNIT
ppm/°C
Ω
A
°C
SPU OPEN STYLE RESISTOR CHARACTERISTICS
Typical is ± 100 (- 10 °C to + 80 °C) consult factory for tighter TCR availability
Dependent upon configuration, consult factory
Dependent upon configuration, consult factory
- 55 to + 275
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: SPU1115L0000FD1 (preferred part numbering format)
S
GLOBAL
MODEL
SPU111
P
U
1
1
1
5
L
0
0
0
0
F
D
1
SPECIAL
(Dash
Number)
(up to 2 digits)
From
1 - 99
as applicable
RESISTANCE
V
ALUE
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
* Lead (Pb)-free
will
not
be
available
until
Q1 2005
Historical Part Number Example: SPU-111-1 0.005
Ω
1
%
S51 (will continue to be accepted)
SPU-111-1
HISTORICAL MODEL
0.005
Ω
RESISTANCE
VALUE
1
%
TOLERANCE CODE
S51
PACKAGING
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168
For technical questions, contact: ww2bresistors@vishay.com
Document Number: 30240
Revision: 10-Sep-04
SPU Open Style
Wirewound Resistors, Open Style, Current Shunts,
Custom Tailored, Very Low Value, High Precision
DIMENSIONS
in inches [millimeters]
Vishay Dale
SPU104
Top View
Side View
0.500 ± 0.020
[12.7 ± 0.508]
End View
0.440 ± 0.005
[11.18 ± 0.127]
0.625 [15.88]
max.
0.060 ± 0.005
[1.52 ± 0.127]
0.500 ± 0.020
[12.7 ± 0.508]
C
L
0.040 ± 0.005
[1.02 ± 0.127]
C
L
0.190 ± 0.005
[4.83 ± 0.127]
0.200 ± 0.005
[5.08 ± 0.127]
C
L
C
L
C
L
0.040 [1.02]
typ.
SPU111...1
Side View
End View
0.525 [13.34]
max.
0.100 ± 0.010
[2.54 ± 0.254]
0.350 ± 0.010
[8.89 ± 0.254]
0.200 ± 0.010
[5.08 ± 0.254]
SPU114
Side View
0.040 ± 0.002
[1.02 ± 0.051]
Dia.
0.130 ± 0.010
[3.30 ± 0.254]
0.120 ± 0.020
[3.05 ± 0.508]
RAD. 4 PL.
0.200 ± 0.010
[5.08 ± 0.254]
0.100 ± 0.010
[2.54 ± 0.254]
Top View
C
L
0.046 ± 0.010
[1.63 ± 0.254]
0.127 [0.005]
max. BURR
0.850 ± 0.025
[21.59 ± 0.635]
1.10 ± 0.010
[27.94 ± 0.254]
0.138 ± 0.113
[3.50 ± 2.87]
MATERIAL SPECIFICATIONS
Element:
Copper-nickel alloy or nickel-chrome alloy,
depending on resistor type and/or resistance value
Coating:
None
Standard Terminals:
SPU104: 100 % Sn, w/Nickel
underplate, or 60/40 Sn/Pb coated copper
Other Models:
100 % Sn, w/Nickel underplate, or 60/40
Sn/Pb coated Copperweld
®
Part Marking:
None
AMBIENT TEMPERATURE DERATING
Derating is required for ambient temperatures above 25 °C
per the following graph
RATED POWER IN
%
120
100
80
60
40
20
0
- 55 - 50
0
25
50
100
150
200
250
275
AMBIENT TEMPERATURE IN
°C
Derating
Document Number: 30240
Revision: 10-Sep-04
For technical questions, contact: ww2bresistors@vishay.com
www.vishay.com
169
Legal Disclaimer Notice
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
otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such
applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding
products designed for such applications.
Product names and markings noted herein may be trademarks of their respective owners.
Document Number: 91000
Revision: 18-Jul-08
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