Power Metal Strip
®
Resistors,
Low Value (down to 0.001 Ω), Surface Mount
www.vishay.com For technical questions, contact: ww2bresistors@vishay.com
Document Number: 30100
6 Revision: 12-Aug-09
WSL
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)
• All welded construction
• Solderable terminations
• Solid metal Nickel-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)
• Compliant to RoHS directive 2002/95/EC
Notes
(1)
For values above 0.1 Ω derate linearly to 80 % rated power at 0.5 Ω
• 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
** Please see document “Vishay Material Category Policy”: www.vishay.com/doc?99902
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
POWER RATING
P
70 °C
W
RESISTANCE RANGE
Ω
WEIGHT
(typical)
g/1000 pieces
± 0.5 % ± 1.0 %
WSL0603 0.1 0.01 to 0.1 0.01 to 0.1 1.9
WSL0805 0.125 0.01 to 0.2 0.01 to 0.2 4.8
WSL1206 0.25 0.006 to 0.2 0.001 to 0.2 16.2
WSL2010 0.5 0.004 to 0.5 0.001 to 0.5 38.9
WSL2512 1.0
(1)
0.003 to 0.5 0.001 to 0.5 63.6
WSL2816 2.0 0.01 to 0.1 0.01 to 0.1 118
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 PART NUMBER INFORMATION
NEW GLOBAL PART NUMBERING: WSL25124L000FTA (PREFERRED PART NUMBERING FORMAT)
GLOBAL MODEL VALUE TOLERANCE CODE PACKAGING SPECIAL
WSL0603
WSL0805
WSL1206
WSL2010
WSL2512
WSL2816
L = mΩ*
R = Decimal
5L000 = 0.005 Ω
R0100 = 0.01 Ω
* use “L” for resistance
values < 0.01 Ω
D = ± 0.5 %
F = ± 1.0 %
J = ± 5.0 %
EA = Lead (Pb)-free, tape/reel
EK = Lead (Pb)-free, bulk
TA = Tin/lead, tape/reel (R86)
TG = Tin/lead, tape/reel (RT1)
BA = Tin/lead, bulk (B43)
(Dash Number)
(up to 2 digits)
From 1 to 99 as
applicable
HISTORICAL PART NUMBER EXAMPLE: WSL2512 0.004 Ω 1 % R86 (WILL CONTINUE TO BE ACCEPTED)
WSL2512 0.004 Ω 1 % R86
HISTORICAL MODEL RESISTANCE VALUE TOLERANCE CODE PACKAGING
L251 4L02WS T0 FA0