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
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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
POWER RATING
P25 °C
W
HISTORICAL
MODEL
CURRENT RATING
(maximum)
A
RESISTANCE RANGE
Ω
±1%
0.0025 - 0.010
SPU104
SPU-104
1.875
25
SPU111...1
SPU-111-1
1
10
0.005
SPU114
SPU-114
1
10
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
UNIT
SPU OPEN STYLE RESISTOR CHARACTERISTICS
ppm/°C
Temperature Coefficient
Typical is ± 100 (- 10 °C to + 80 °C) consult factory for tighter TCR availability
Resistance Range
Ω
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
New Global Part Numbering: SPU1115L0000FD1 (preferred part numbering format)
S
P
GLOBAL
MODEL
SPU111
U
1
1
RESISTANCE
VALUE
L = mΩ
(below 0.01 Ω )
R = Decimal
5L0000 = 0.005 Ω
R10000 = 0.10 Ω
1
5
L
0
TOLERANCE
CODE
F = ± 1.0 %
J = ± 5.0 %
0
0
0
F
D
1
PACKAGING
SPECIAL
E* = Lead (Pb)-free, bulk
D = Tin/lead, bulk
(Dash Number)
(up to 2 digits)
From 1 - 99
as applicable
* 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
www.vishay.com
168
0.005 Ω
1%
S51
RESISTANCE VALUE
TOLERANCE CODE
PACKAGING
For technical questions, contact: ww2bresistors@vishay.com
Document Number: 30240
Revision: 10-Sep-04