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WSL...18 High Power
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Vishay Dale
Power Metal Strip® Resistors, High Power (2 x Standard WSL),
Low Value (Down to 0.0005 Ω), Surface-Mount
FEATURES
• All welded construction of the Power Metal
Strip® resistors are ideal for all types of current
sensing, voltage division and pulse
applications
Available
• Proprietary processing technique produces
extremely low resistance values (down to
0.0005 Ω)
• Sulfur resistance by construction that is
Available
unaffected by high sulfur environments
• Very low inductance 0.5 nH to 5 nH
Available
• Low thermal EMF (< 3 μV/°C)
• AEC-Q200 qualified (1)
Available
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
LINKS TO ADDITIONAL RESOURCES
3D 3D
3D Models
Design Tools
Videos
Notes
• This datasheet provides information about parts that are RoHS-compliant and / or parts that are non-RoHS-compliant. For example, parts
with lead (Pb) terminations are not RoHS-compliant. Please see the information / tables in this datasheet for details
(1) Flame retardance test may not be applicable to some resistor technologies
STANDARD ELECTRICAL SPECIFICATIONS
RESISTANCE VALUE RANGE (2)
Ω
TOL. ± 0.5 %
TOL. ± 1.0 %
GLOBAL
MODEL
SIZE
POWER RATING
P70 °C
W
WSL0603...18 (1)
0603
0.20
0.01 to 0.1
0.01 to 0.1
1.9
WSL0805...18 (1)
WSL1206...18 (1)
WSL2010...18 (1)
WSL2512...18 (1)
0805
1206
2010
2512
0.25
0.5
1.0
2.0
0.005 to 0.2
0.005 to 0.2
0.004 to 0.5
0.003 to 0.04
0.005 to 0.2
0.0005 to 0.2
0.001 to 0.5
0.0005 to 0.04
4.8
16.2
38.9
63.6
WEIGHT
(typical)
g/1000 pieces
Notes
• Part marking: value; tolerance: due to resistor size limitations some resistors will be marked with only the resistance value
• “Thermal Management for Surface-Mount Devices” white paper: www.vishay.com/doc?30380
(1) Qualified to AEC-Q200 rev. D
(2) WSL1206...18 0.0005 Ω to 0.00099 Ω is only available with 2 % tolerance (G tolerance code)
GLOBAL PART NUMBER INFORMATION
Global Part Numbering Example: WSL25124L000FEA18 (visit www.vishay.net Vishay Dale parts numbering manual for all options)
W
S
L
2
5
1
2
4
L
0
0
0
F
E
A
1
8
GLOBAL MODEL
RESISTANCE VALUE (1)
TOLERANCE CODE
PACKAGING CODE (2)
SPECIAL
WSL0603
WSL0805
WSL1206
WSL2010
WSL2512
L = mΩ *
R = decimal
5L000 = 0.005 Ω
R0100 = 0.01 Ω
D = ± 0.5 %
F = ± 1.0 %
J = ± 5.0 %
EA = lead (Pb)-free, tape / reel
18 =
“High
power”
option
TA = tin / lead, tape / reel (R86)
TG = tin / lead, tape / reel (RT1, for WSL0603 and WSL0805)
BA = tin / lead, bulk (B43)
* Use “L” for resistance
values < 0.01 Ω
Notes
• Per PCN-DR-00009-2022-REV-0, WSL marking will be removed effective March 1st, 2023
(1) WSL marking (www.vishay.com/doc?30327); WSL decade values (www.vishay.com/doc?30117)
(2) Packaging code: EB (lead (Pb)-free) and TB (tin / lead) are non-standard packaging codes that designate 1000 piece reel quantities. These
non-standard packaging codes are identical to our standard EA (lead (Pb)-free) and TA (tin / lead), except that they have a package quantity
of 1000 pieces
Revision: 23-Oct-2023
Document Number: 31057
1
For technical questions, contact: ww2bresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Upgrade for Higher Current to WSLF
WSL...18 High Power
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Vishay Dale
TECHNICAL SPECIFICATIONS
PARAMETER
UNIT
RESISTOR CHARACTERISTICS
WSL0805...18 WSL1206...18 WSL2010...18 WSL2512...18
WSL0603...18 (1)
± 75 for 50 mΩ to 100 mΩ
± 75 for 7 mΩ to 500 mΩ
± 110 for 10 mΩ to 49 mΩ
± 110 for 5 mΩ to 6.9 mΩ
Component temperature
coefficient (including terminal) (2)
TCR measured from
-55 °C to +155 °C
ppm/°C
Element TCR (3)
Operating temperature range
ppm/°C
°C
< 20
-65 to +170
Maximum working voltage (4)
V
(P x R)1/2
-
± 150 for 3 mΩ to 4.9 mΩ
-
± 275 for 1 mΩ to 2.9 mΩ
-
± 400 for 0.5 mΩ to 0.99 mΩ
Notes
(1) Consult factory for detailed TCR performance across temperature range as performance can vary by resistance value
(2) Component TCR - total TCR that includes the TCR effects of the resistor element and the copper terminal
(3) Element TCR - only applies to the alloy used for the resistor element; refer to item 1 in the construction illustration on the following page
(4) Maximum working voltage - the WSL is not voltage sensitive, but is limited by power / energy dissipation and is also not ESD sensitive
DIMENSIONS in inches (millimeters)
H
l
b
W
a
T
L
Typical sensing traces
Notes
• 3D models available: www.vishay.com/doc?30307
• Surface mount solder profile recommendations: www.vishay.com/doc?31052
MODEL
RESISTANCE
RANGE (Ω)
WSL0603...18 (1)
0.01 to 0.1
WSL0805...18
0.005 to 0.2
L
0.060 ± 0.010
(1.52 ± 0.254)
0.080 ± 0.010
(2.03 ± 0.254)
DIMENSIONS
W
H
T
0.030 ± 0.010 0.016 ± 0.005 0.015 ± 0.005
(0.76 ± 0.254) (0.406 ± 0.127) (0.381 ± 0.127)
0.050 ± 0.010 0.016 ± 0.005 0.015 ± 0.005
(1.27 ± 0.254) (0.406 ± 0.127) (0.381 ± 0.127)
0.0005 to 0.00099
0.001 to 0.0019
WSL1206...18
0.002 to 0.0059
0.041 ± 0.010
(1.04 ± 0.254)
0.126 ± 0.010
(3.20 ± 0.254)
0.063 ± 0.010
(1.60 ± 0.254)
0.200 ± 0.010
(5.08 ± 0.254)
0.100 ± 0.010
(2.54 ± 0.254)
0.006 to 0.20
0.001 to 0.0069
WSL2010...18
0.007 to 0.5
0.0005 to 0.00099
0.001 to 0.0049
WSL2512...18
0.005 to 0.0069
0.007 to 0.04
0.250 ± 0.010
(6.35 ± 0.254)
0.125 ± 0.010
(3.18 ± 0.254)
0.025 ± 0.010
(0.635 ± 0.254)
0.025 ± 0.010
(0.635 ± 0.254)
0.020 ± 0.010
(0.508 ± 0.254)
0.058 ± 0.010
0.025 ± 0.010 (1.47 ± 0.254)
(0.635 ± 0.254) 0.020 ± 0.010
(0.508 ± 0.254)
0.107 ± 0.010
(2.72 ± 0.254)
0.087 ± 0.010
0.025 ± 0.010 (2.21 ± 0.254)
(0.635 ± 0.254) 0.047 ± 0.010
(1.19 ± 0.254)
0.030 ± 0.010
(0.762 ± 0.254)
SOLDER PAD DIMENSIONS
a
b
l
0.040
0.040
0.020
(1.01)
(1.01)
(0.50)
0.040
0.050
0.020
(1.02)
(1.27)
(0.50)
0.089
0.076
0.023
(2.26)
(1.93)
(0.58)
0.086
0.076
0.029
(2.18)
(1.93)
(0.74)
0.070
0.076
0.061
(1.78)
(1.93)
(1.55)
0.065
0.076
0.071
(1.65)
(1.93)
(1.80)
0.093
0.120
0.055
(2.36)
(3.05)
(1.40)
0.055
0.120
0.130
(1.40)
(3.05)
(3.30)
0.120
(3.05)
0.083
(2.11)
0.065
(1.65)
0.050
(1.27)
0.145
(3.68)
0.125
(3.18)
0.160
(4.06)
Note
(1) PCN-DR-00003-2020 changed terminal height for WSL0603...18 from 0.013" ± 0.005" for clad construction to 0.016" ± 0.005" for welded
construction
Revision: 23-Oct-2023
Document Number: 31057
2
For technical questions, contact: ww2bresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Upgrade for Higher Current to WSLF
WSL...18 High Power
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Vishay Dale
DERATING
PULSE CAPABILITY
Axis Title
10000
120
click to get started
1000
80
1st line
2nd line
2nd line
Rated Power (%)
100
60
US
ILL
100
40
VE
TI
A
TR
S
SE
O
RP
PU
LY
ON
20
10
0
-65-50 -25
0
25
50 70
www.vishay.com/en/resistors/power-metal-strip-calculator
100 125 150 170
Ambient Temperature (°C)
WELDED CONSTRUCTION
1 Resistive element: solid metal nickel-chrome
or manganese-copper alloy resistive element
with low TCR (< 20 ppm/°C)
2 Plated terminal
4
2
3
1
3 Terminal / element weld
4 Silicone coating with ink print
PERFORMANCE
TEST
Thermal shock
Short time overload
Low temperature storage
High temperature exposure
Bias humidity
Mechanical shock
Vibration
Load life
Resistance to solder heat
Moisture resistance
CONDITIONS OF TEST
-55 °C to +150 °C, 1000 cycles, 15 min at each extreme
Refer to link for short time overload performance and pulse capability;
www.vishay.com/resistors/power-metal-strip-calculator/
-65 °C for 24 h
1000 h at + 170 °C
+85 °C, 85 % RH, 10 % bias, 1000 h
100 g’s for 6 ms, 5 pulses
Frequency varied 10 Hz to 2000 Hz in 1 min, 3 directions, 12 h
1000 h at rated power, + 70 °C, 1.5 h “ON”, 0.5 h “OFF”
+260 °C solder, 10 s to 12 s dwell, 25 mm/s emergence
MIL-STD-202, method 106, 0 % power, 7a and 7b not required
TEST LIMITS
± 0.5 % + 0.0005 Ω
± 0.5 % + 0.0005 Ω
± 0.5 % + 0.0005 Ω
± 1.0 % + 0.0005 Ω
± 0.5 % + 0.0005 Ω
± 0.5 % + 0.0005 Ω
± 0.5 % + 0.0005 Ω
± 1.0 % + 0.0005 Ω
± 0.5 % + 0.0005 Ω
± 0.5 % + 0.0005 Ω
Note
• Contact ww2bresistors@vishay.com for application specific performance requirements or qualification data. Typical performance is better
than stated test limits
PACKAGING
(1)
MODEL
WSL0603...18
WSL0805...18
WSL1206...18
WSL2010...18
WSL2512...18
TAPE WIDTH
8 mm / punched paper
8 mm / punched paper
8 mm / embossed plastic
12 mm / embossed plastic
12 mm / embossed plastic
REEL
DIAMETER
178 mm / 7"
178 mm / 7"
178 mm / 7"
178 mm / 7"
178 mm / 7"
PIECES/REEL
5000
5000
4000
4000
2000
CODE
EA
EA
EA
EA
EA
Notes
• Embossed carrier tape per EIA-481
(1) Additional packaging details at www.vishay.com/doc?20051
Revision: 23-Oct-2023
Document Number: 31057
3
For technical questions, contact: ww2bresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Upgrade for Higher Current to WSLF
WSL...18 High Power
www.vishay.com
Vishay Dale
LINKS TO RELATED DOCUMENTS
SELECTOR GUIDE
Overview of Automotive Grade Products
www.vishay.com/doc?49924
TECHNICAL NOTES
SMD Current Sense: AEC-Q200 vs. Vishay Qualification
www.vishay.com/doc?30416
MIL-PRF vs. AEC-Q200: Do You Know What You Are Getting?
www.vishay.com/doc?11000
WHITE PAPER
Thermal Management for Surface-Mount Devices
www.vishay.com/doc?30380
Temperature Coefficient of Resistance for Current Sensing
www.vishay.com/doc?30405
Revision: 23-Oct-2023
Document Number: 31057
4
For technical questions, contact: ww2bresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Legal Disclaimer Notice
www.vishay.com
Vishay
Disclaimer
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RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
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“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
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Revision: 01-Jan-2023
1
Document Number: 91000