SPU Open Style Datasheet

SPU Open Style
www.vishay.com
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
Available
• 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
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
HISTORICAL
MODEL
POWER RATING
P25 °C
W
RESISTANCE
RANGE

SPU104
SPU111...1
CURRENT RATING
(maximum)
A
TOLERANCE
±%
SPU-104
1.875
0.0025 to 0.010
1
25
SPU-111-1
1
0.005
1
10
SPU-114
1
0.00167 to 0.020
1
10
SPU114
Note
• Resistance tolerances available are 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
UNIT
SPU OPEN STYLE RESISTOR CHARACTERISTICS
ppm/°C
Typical is ± 100 (- 10 °C to + 80 °C) consult factory for tighter TCR availability
Resistance Range

Dependent upon configuration, consult factory
Maximum Current Rating
A
Dependent upon configuration, consult factory
Operating Temperature Range
°C
- 55 to + 275
GLOBAL PART NUMBER INFORMATION
Global Part Numbering example: SPU1115L0000FD1
S
P
GLOBAL MODEL
SPU111
U
1
1
1
5
L
0
RESISTANCE VALUE
TOLERANCE CODE
L = m
(below 0.01 )
R = Decimal
5L0000 = 0.005 
R10000 = 0.10 
B = ± 0.1 %
C = ± 0.25 %
D = ± 0.5 %
F = ± 1.0 %
H = ± 3.0 %
J = ± 5.0 %
0
0
0
F
PACKAGING
E = Lead (Pb)-free, bulk
D = Tin/lead, bulk
D
1
SPECIAL
(Dash Number)
(up to 2 digits)
From 1 to 99 as
applicable
Historical Part Numbering example: SPU-111-1 0.005  1 % S51
SPU-111-1
0.005 
1%
S51
HISTORICAL MODEL
RESISTANCE VALUE
TOLERANCE CODE
PACKAGING
Revision: 11-Jul-13
Document Number: 30240
1
For technical questions, contact: [email protected]
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
SPU Open Style
www.vishay.com
Vishay Dale
DIMENSIONS in inches [millimeters]
Top View
SPU104
End View
Side View
0.500 ± 0.020
[12.7 ± 0.508]
0.625 [15.88]
max.
0.440 ± 0.005
[11.18 ± 0.127]
0.500 ± 0.020
[12.7 ± 0.508]
SPU111...1
0.190 ± 0.005
[4.83 ± 0.127]
0.040 ± 0.005
[1.02 ± 0.127]
CL
0.060 ± 0.005
[1.52 ± 0.127]
0.040 [1.02]
typ.
0.200 ± 0.005
[5.08 ± 0.127]
CL
C
L
Side View
CL
CL
End View
0.525 [13.34]
max.
0.100 ± 0.010
[2.54 ± 0.254]
0.350 ± 0.010
[8.89 ± 0.254]
SPU114
0.200 ± 0.010
[5.08 ± 0.254]
Side View
0.046 ± 0.010
[1.63 ± 0.254]
0.127 [0.005]
max. BURR
Top View
0.040 ± 0.002
[1.02 ± 0.051]
Dia.
0.130 ± 0.010
[3.30 ± 0.254]
0.200 ± 0.010
[5.08 ± 0.254]
0.120 ± 0.020
[3.05 ± 0.508]
RAD. 4 PL.
CL
0.100 ± 0.010
[2.54 ± 0.254]
0.138 ± 0.113
[3.50 ± 2.87]
0.850 ± 0.025
[21.59 ± 0.635]
1.10 ± 0.010
[27.94 ± 0.254]
MATERIAL SPECIFICATIONS
AMBIENT TEMPERATURE DERATING
Element: Copper-nickel alloy or nickel-chrome alloy,
depending on resistor type and/or resistance value
Derating is required for ambient temperatures above 25 °C
per the following graph:
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








Revision: 11-Jul-13
DERATING
RATED POWER IN %
Coating: None
120
100
80
60
40
20
0
- 55 - 50
0
50
25
100
150
200
250
275
AMBIENT TEMPERATURE IN °C
Document Number: 30240
2
For technical questions, contact: [email protected]
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
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Revision: 02-Oct-12
1
Document Number: 91000