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
HISTORICAL
MODEL
POWER RATING *
RESISTANCE RANGE
WEIGHT
(Typical)
g
P25°C
W
Ω
± 1%
SPU050
SPU051
SPU052
SPU053
SPU-50
SPU-51
SPU-52
SPU-53
1
2
4
5
0.001 - 0.060
0.001 - 0.060
0.001 - 0.200
0.010 - 0.500
2.5
3.7
4.8
10.8
• 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.
*Wattage rating is limited to 25 amperes maximum.
TECHNICAL SPECIFICATIONS
PARAMETER
UNIT
SPU MOLDED STYLE RESISTOR CHARACTERISTICS
- 100 (- 10°C to + 80°C)
Temperature Coefficient
Dielectric Withstanding Voltage
Short Time Overload
ppm/°C
VAC
-
500 minimum
5 x power for 5 seconds, limited to 25 amperes maximum
(PxR)1/2
Maximum Working Voltage
Insulation Resistance
V
Ω
10,000 Megohm minimum dry
Operating Temperature Range
°C
SPU-50 & SPU-51 = - 55/+175, SPU-52 & SPU-53 = - 55/+ 275
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: SPU052R10000FD (preferred part numbering format)
S
P
U
0
5
2
R
1
0
0
0
0
F
D
GLOBAL
MODEL
SPU052
RESISTANCE
VALUE
L = Milliohm
(below 0.01Ω)
R = Decimal
5L0000 = 0.005Ω
R10000 = 0.10Ω
TOLERANCE
CODE
F = ± 1.0%
PACKAGING
SPECIAL
E* = Lead Free, bulk
D = Tin/lead, bulk
(Dash Number)
(up to 2 digits)
From 1-99
J = ± 5.0%
*Lead Free will not be available until Q1 2005
as applicable
Historical Part Number example: SPU-52 0.1Ω 1% S51 (will continue to be accepted)
SPU-052
0.100Ω
1%
S51
HISTORICAL MODEL
RESISTANCE VALUE
TOLERANCE CODE
PACKAGING
www.vishay.com
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For technical questions, contact ww2bresistors@vishay.com
Document Number: 30220
Revision 11-Sep-04