Upgrade for Wider Resistance Range to WFM
WSLP
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Vishay Dale
Power Metal Strip® Resistors, Very High Power (to 3 W),
Low Value (Down to 0.0005 Ω), Surface-Mount
FEATURES
• Very high power to foot print size ratio (3 W in
2512, 2 W in 2010, 1 W in 1206, 0.5 W in 0805,
and 0.4 W in 0603 package)
• All welded construction of the Power Metal
Strip® resistors are ideal for all types of current
sensing, voltage division and pulse
applications
• Proprietary processing technique produces
extremely low resistance values (down to
0.0005 Ω)
• Sulfur resistance by construction that is
unaffected by high sulfur environments
• Very low inductance 0.5 nH to 5 nH
• Low thermal EMF (< 3 μV/°C)
• AEC-Q200 qualified (1)
• 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
WSLP0603
WSLP0805
WSLP1206
WSLP2010
WSLP2512
0603
0805
1206
2010
2512
RESISTANCE VALUE RANGE (1)
Ω
TOL. ± 0.5 %
TOL. ± 1.0 %
0.015 to 0.1
0.01 to 0.1
0.005 to 0.1
0.005 to 0.1
0.005 to 0.05
0.0005 to 0.05
0.004 to 0.03
0.001 to 0.03
0.003 to 0.01
0.0005 to 0.01
POWER RATING
P70 °C
W
0.4
0.5
1.0
2.0
3.0
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) WSLP1206 0.0005 Ω to 0.00099 Ω is only available with 2 % tolerance (G tolerance code)
GLOBAL PART NUMBER INFORMATION
Global Part Numbering Example: WSLP1206R0100FEA (visit www.vishay.net Vishay Dale parts numbering manual for all options)
W
S
L
P
1
2
0
6
R
0
1
0
0
F
E
A
GLOBAL MODEL
(8 digits)
RESISTANCE VALUE (1)
(5 digits)
TOLERANCE CODE
(1 digit)
PACKAGING CODE (2)
(2 digits)
SPECIAL (3)
(up to 2 digits)
WSLP0603
WSLP0805
WSLP1206
WSLP2010
WSLP2512
L = mΩ*
R = decimal
4L000 = 0.004 Ω
R0100 = 0.01 Ω
D = ± 0.5 %
F = ± 1.0 %
G = ± 2.0 %
EA = lead (Pb)-free, tape / reel
Reserved for
future specials
* 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
(3) Follow link for customization capabilities: www.vishay.com/doc?48163
Document Number: 30122
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
Revision: 09-Aug-2022
Upgrade for Wider Resistance Range to WFM
WSLP
www.vishay.com
Vishay Dale
TECHNICAL SPECIFICATIONS
PARAMETER
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
RESISTOR CHARACTERISTICS
WSLP0603 (1)
WSLP0805 WSLP1206 WSLP2010 WSLP2512
± 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
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 WSLP0603. 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
H
l
b
W
a
T
L
Typical sensing traces
Notes
• 3D models available. WSLP models: www.vishay.com/doc?30313
• Surface-mount solder profile recommendations: www.vishay.com/doc?31052
RESISTANCE
RANGE
(Ω)
MODEL
WSLP0603
(1)
WSLP0805 (2)
0.01 to 0.1
0.005 to 0.1
DIMENSIONS in inches (millimeters)
L
0.060 ± 0.010
(1.52 ± 0.254)
0.080 ± 0.010
(2.03 ± 0.254)
0.0005 to 0.00099
0.001 to 0.0019
WSLP1206
0.002 to 0.0059
WSLP2010
0.007 to 0.03
0.126 ± 0.010
(3.20 ± 0.254)
0.200 ± 0.010
(5.08 ± 0.254)
0.0005 to 0.00099
0.001 to 0.0049
WSLP2512
0.005 to 0.0069
0.007 to 0.01
T
0.015 ± 0.010
(0.381 ± 0.254)
a
0.040
(1.02)
b
0.040
(1.02)
l
0.020
(0.50)
0.015 ± 0.010
(0.381 ± 0.254)
0.040
(1.02)
0.050
(1.27)
0.020
(0.50)
0.089
(2.26)
0.086
(2.18)
0.070
(1.78)
0.065
(1.65)
0.076
(1.93)
0.076
(1.93)
0.076
(1.93)
0.076
(1.93)
0.023
(0.58)
0.029
(0.74)
0.061
(1.55)
0.071
(1.80)
0.041 ± 0.010
(1.04 ± 0.254)
0.006 to 0.050
0.001 to 0.0069
W
H
0.030 ± 0.010 0.016 ± 0.005
(0.76 ± 0.254) (0.406 ± 0.127)
0.050 ± 0.010 0.016 ± 0.005
(1.27 ± 0.254) (0.406 ± 0.127)
0.250 ± 0.010
(6.35 ± 0.254)
SOLDER PAD DIMENSIONS
in inches (millimeters)
0.063 ± 0.010 0.025 ± 0.010
(1.60 ± 0.254) (0.635 ± 0.254) 0.025 ± 0.010
(0.635 ± 0.254)
0.020 ± 0.010
(0.508 ± 0.254)
0.058 ± 0.010
0.100 ± 0.010 0.025 ± 0.010 (1.47 ± 0.254)
(2.54 ± 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
0.125 ± 0.010 0.025 ± 0.010 (2.21 ± 0.254)
(3.18 ± 0.254) (0.635 ± 0.254) 0.047 ± 0.010
(1.19 ± 0.254)
0.030 ± 0.010
(0.762 ± 0.254)
0.093
(2.36)
0.055
(1.40)
0.120
(3.05)
0.120
(3.05)
0.083
(2.11)
0.065
(1.65)
0.055
(1.40)
0.130
(3.30)
0.050
(1.27)
0.145
(3.68)
0.125
(3.18)
0.160
(4.06)
Notes
(1) PCN-DR-00003-2020 changed terminal height for WSLP0603 from 0.013" ± 0.005" for clad construction to 0.016" ± 0.005" for welded
construction
(2) PCN-DR-000023-2021-REV-1 changed terminal height for WSLP0805 from 0.013" ± 0.005" for clad construction to 0.016" ± 0.005" for
welded construction
Document Number: 30122
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
Revision: 09-Aug-2022
Upgrade for Wider Resistance Range to WFM
WSLP
www.vishay.com
Vishay Dale
Rated Power in %
DERATING
PULSE CAPABILITY
120
click to get started
100
80
60
40
US
ILL
20
0
- 65 - 50
- 25
0
25
50
75
100
125
150
E
IV
AT
R
T
ES
OS
P
R
PU
LY
ON
170
Ambient Temperature in °C
www.vishay.com/resistors/power-metal-strip-calculator
70
WELDED CONSTRUCTION
1 Resistive element: solid metal nickel-chrome
or manganese-copper alloy resistive element
with low TCR (< 20 ppm/°C)
2 Terminal: solid copper, 100 % Sn (200 μ" min.)
with 100 % Ni (40 μ" min.) under layer finish
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)
± (0.5 % + 0.0005 Ω)
Low temperature operation
-65 °C for 24 h
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 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, 7b not required
± (0.5 % + 0.0005 Ω)
PACKAGING
(1)
MODEL
REEL
TAPE WIDTH
DIAMETER
PIECES / REEL
CODE
WSLP0603
8 mm / punched paper
178 mm / 7"
5000
EA
WSLP0805
8 mm / punched paper
178 mm / 7"
5000
EA
WSLP1206
8 mm / embossed plastic
178 mm / 7"
4000
EA
WSLP2010
12 mm / embossed plastic
178 mm / 7"
4000
EA
WSLP2512
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
Document Number: 30122
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
Revision: 09-Aug-2022
Legal Disclaimer Notice
www.vishay.com
Vishay
Disclaimer
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Revision: 01-Jan-2022
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Document Number: 91000