Upgrade for Higher Current to WSLF
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
• Follow link to Overview of Automotive Grade Products for more details: www.vishay.com/doc?49924
• “SMD Current Sense: AEC-Q200 vs. Vishay Qualification” technical note: www.vishay.com/doc?30416
(1) Flame retardance test may not be applicable to some resistor technologies
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
SIZE
POWER RATING
P70 °C
W
WSL0603...18
WSL0805...18
WSL1206...18
WSL2010...18
WSL2512...18
0603
0805
1206
2010
2512
0.20
0.25
0.5
1.0
2.0
RESISTANCE VALUE RANGE (1)
Ω
TOL. ± 0.5 %
TOL. ± 1.0 %
0.01 to 0.1
0.01 to 0.1
0.005 to 0.2
0.005 to 0.2
0.005 to 0.2
0.0005 to 0.2
0.004 to 0.5
0.001 to 0.5
0.003 to 0.04
0.0005 to 0.04
WEIGHT
(typical)
g/1000 pieces
1.9
4.8
16.2
38.9
63.6
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) 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: 31-Mar-2022
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
www.vishay.com
Vishay Dale
TECHNICAL SPECIFICATIONS
PARAMETER
RESISTOR CHARACTERISTICS
WSL0805 WSL1206 WSL2010 WSL2512 WSL2816
WSL0603...18 (1)
...18
...18
...18
...18
...18
± 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
± 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
< 20
-65 to +170
(P x R)1/2
UNIT
Component temperature coefficient
(including terminal) (2)
TCR measured from
-55 °C to +155 °C
ppm/°C
Element TCR (3)
Operating temperature range
Maximum working voltage (4)
ppm/°C
°C
V
Notes
• “Temperature Coefficient of Resistance for Current Sensing” white paper: www.vishay.com/doc?30405
(1) Consult factory for detailed TCR performance across temperature range associated with PCN-DR-00003-2020 for WSL0603...18. TCR
performance is improved for +25 °C to +155 °C
(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: 31-Mar-2022
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
Rated Power in %
DERATING
PULSE CAPABILITY
120
click to get started
100
80
60
40
ILL
20
0
- 65 - 50
- 25
0
25
50
75
100
125
150
US
VE
TI
A
TR
S
SE
O
RP
PU
LY
ON
170
Ambient Temperature in °C
70
www.vishay.com/resistors/power-metal-strip-calculator
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
CONDITIONS OF TEST
TEST LIMITS
Thermal shock
-55 °C to +150 °C, 1000 cycles, 15 min at each extreme
± 0.5 % + 0.0005 Ω
Short time overload
Refer to link for short time overload performance and pulse capability;
www.vishay.com/resistors/power-metal-strip-calculator/
± 0.5 % + 0.0005 Ω
Low temperature storage
-65 °C for 24 h
± 0.5 % + 0.0005 Ω
High temperature exposure
1000 h at + 170 °C
± 1.0 % + 0.0005 Ω
Bias humidity
+85 °C, 85 % RH, 10 % bias, 1000 h
± 0.5 % + 0.0005 Ω
Mechanical shock
100 g’s for 6 ms, 5 pulses
± 0.5 % + 0.0005 Ω
Vibration
Frequency varied 10 Hz to 2000 Hz in 1 min, 3 directions, 12 h
± 0.5 % + 0.0005 Ω
Load life
1000 h at rated power, + 70 °C, 1.5 h “ON”, 0.5 h “OFF”
± 1.0 % + 0.0005 Ω
Resistance to solder heat
+260 °C solder, 10 s to 12 s dwell, 25 mm/s emergence
± 0.5 % + 0.0005 Ω
Moisture resistance
MIL-STD-202, method 106, 0 % power, 7a and 7b not required
± 0.5 % + 0.0005 Ω
PACKAGING
(1)
MODEL
REEL
TAPE WIDTH
DIAMETER
PIECES/REEL
CODE
WSL0603...18
8 mm / punched paper
178 mm / 7"
5000
EA
WSL0805...18
8 mm / punched paper
178 mm / 7"
5000
EA
WSL1206...18
8 mm / embossed plastic
178 mm / 7"
4000
EA
WSL2010...18
12 mm / embossed plastic
178 mm / 7"
4000
EA
WSL2512...18
12 mm / embossed plastic
178 mm / 7"
2000
EA
Notes
• Embossed carrier tape per EIA-481
(1) Additional packaging details at www.vishay.com/doc?20051
Revision: 31-Mar-2022
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
Legal Disclaimer Notice
www.vishay.com
Vishay
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
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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Product specifications do not expand or otherwise modify Vishay's terms and conditions of purchase, including but not limited
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Revision: 01-Jan-2022
1
Document Number: 91000