WSLP3921, WSLP5931
Vishay Dale
Power Metal Strip® Resistors, Very High Power (to 10 W)
Low Value (Down to 0.0003 Ω), Surface Mount
FEATURES
• Ideal for all types of current sensing, voltage
division and pulse applications including
switching
and
linear
power
supplies,
instruments, power amplifiers
• Proprietary processing technique produces
extremely low resistance values, down to
0.0003 Ω
• Specially selected and stabilized materials allow
for high power rating (to 10 W)
• All welded construction
• Solid metal iron-chrome or manganese-copper alloy
resistive element with low TCR (< 20 ppm/°C)
• Very low inductance 0.5 nH to 5 nH
• Excellent frequency response to 50 MHz
• Low thermal EMF (< 3 μV/°C)
• AEC-Q200 qualified available (1)
• Compliant to RoHS Directive 2002/95/EC
Note
(1) Flame retardance test may not be applicable to some resistor
technologies.
STANDARD ELECTRICAL SPECIFICATIONS
POWER RATING
RESISTANCE VALUE
RESISTANCE VALUES
CURRENTLY AVAILABLE (2)
Ω
WEIGHT
(typical)
g/1000 pieces
GLOBAL
MODEL
TOLERANCE
%
SIZE
P70 °C
W
RANGE
Ω
WSLP3921 3921
WSLP3921 3921
WSLP5931 5931
WSLP5931 5931
5.0
9.0
1.0, 5.0
1.0, 5.0
1.0, 5.0
1.0, 5.0
2m to 4m
0.5m to 1m
1m to 3m
2m, 3m, 4m
0.5m, 1m
281
281
398
398
7.0
1m, 2m, 3m
0.3m, 0.5m
10.0
0.3m to 0.5m
Note
(2)
Other values may be available, contact factory.
TECHNICAL SPECIFICATIONS
PARAMETER
UNIT
RESISTOR CHARACTERISTICS
Temperature coefficient
Operating temperature range
Maximum continuous current
ppm/°C
175 for 0.3 mΩ and 0.5 mΩ, 75 for 1 mΩ to 4 mΩ
°C
A
- 65 to + 170
(P/R)1/2
GLOBAL PART NUMBER INFORMATION
Global Part Numbering: WSLP39212L000FEA
W
S
L
P
3
9
2
1
2
L
0
0
0
F
E
A
GLOBAL MODEL
RESISTANCE VALUE
TOLERANCE CODE
PACKAGING CODE
SPECIAL
WSLP3921
WSLP5931
L = mΩ
2L000 = 0.002 Ω
F = 1.0 %
J = 5.0 %
EA = Lead (Pb)-free, tape/reel
EK = Lead (Pb)-free, bulk
Reserved for
future specials
** Please see document “Vishay Material Category Policy”: www.vishay.com/doc?99902
www.vishay.com
1
For technical questions, contact: ww2bresistors@vishay.com
Document Number: 30176
Revision: 18-Nov-10