Power Metal Strip
®
Resistors, High Power (2 x Standard WSL),
Low Value (down to 0.001 Ω), Surface Mount
www.vishay.com For technical questions, contact: ww2bresistors@vishay.com
Document Number: 31057
8 Revision: 10-Nov-08
WSL...18 High Power
Vishay Dale
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
0.001 Ω)
• Specially selected and stabilized materials
allow for high power ratings (2 x standard WSL rating)
• All welded construction
• Solid metal Nickel-Chrome or Manganese-Copper alloy
resistive element with low TCR (< 20 ppm/°C)
• Solderable terminations
• Very low inductance 0.5 nH to 5 nH
• Excellent frequency response to 50 MHz
• Low thermal EMF (< 3 µV/°C)
• Lead (Pb)-free version is RoHS compliant
Note
• Part Marking: Value, Tolerance: due to resistor size limitations some resistors will be marked with only the resistance value
* Pb containing terminations are not RoHS compliant, exemptions may apply
Available
Pb-free
RoHS*
COMPLIANT
e3
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
POWER RATING
P
70 °C
W
RESISTANCE RANGE
Ω
WEIGHT
(typical)
g/1000 pieces
± 0.5 % ± 1.0 %
WSL0603...18 0.20 0.015 - 0.1 0.015 - 0.1 1.9
WSL0805...18 0.25 0.01 - 0.2 0.01 - 0.2 4.8
WSL1206...18 0.5 0.006 - 0.2 0.001 - 0.2 16.2
WSL2010...18 1.0 0.004 - 0.5 0.001 - 0.5 38.9
WSL2512...18 2.0 0.003 - 0.02 0.001 - 0.02 63.6
TECHNICAL SPECIFICATIONS
PARAMETER UNIT WSL RESISTOR CHARACTERISTICS
Temperature Coefficient ppm/°C
± 275 for 1 mΩ to 2.9 mΩ, ± 150 for 3 mΩ to 4.9 mΩ
± 110 for 5 mΩ to 6.9 mΩ, ± 75 for 7 mΩ to 0.5 Ω
Operating Temperature Range °C - 65 to + 170
Maximum Working Voltage V (P x R)
1/2
GLOBAL MODEL VALUE TOLERANCE CODE PACKAGING SPECIAL
WSL0603
WSL0805
WSL1206
WSL2010
WSL2512
L = mΩ*
D = ± 0.5 %
EA = Lead (Pb)-free, tape/reel
18 = “High Power”
R = Decimal F = ± 1.0 %
EK = Lead (Pb)-free, bulk
option
5L000 = 0.005 Ω J = ± 5.0 %
R0100 = 0.01 Ω
GLOBAL PART NUMBER INFORMATION
NEW GLOBAL PART NUMBERING: WSL25124L000FTA18 (PREFERRED PART NUMBERING FORMAT)
WSL25124L000FTA18
HISTORICAL PART NUMBER EXAMPLE: WSL2512-18 0.004 Ω 1 % R86 (WILL CONTINUE TO BE ACCEPTED)
WSL2512-18 0.004 Ω 1 % R86
HISTORICAL MODEL RESISTANCE VALUE TOLERANCE PACKAGING
CODE
* use “L” for resistance
values < 0.01 Ω
TA = Tin/lead, tape/reel (R86)
TG = Tin/lead, tape/reel (RT1)
BA = Tin/lead, bulk (B43)
