WSL
www.vishay.com Vishay Dale
Revision: 02-May-2018 1Document Number: 30100
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
Power Metal Strip® Resistors, Low Value
(down to 0.0005 ), Surface Mount
DESIGN SUPPORT TOOLS
FEATURES
• 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 )
• 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
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
(1) Flame retardance test may not be applicable to some resistor technologies
Notes
• Part marking: Value; tolerance: Due to resistor size limitations some resistors will be marked with only the resistance value
(1) For values above 0.1 derate linearly to 80 % rated power at 0.5
Notes
(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 designating 1000 piece reels. 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
click logo to get started
Available
Models
Available
Design Tools
Available
Available
Available
Available
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL SIZE POWER RATING P70 °C
W
RESISTANCE VALUE RANGE WEIGHT (typical)
g/1000 pieces
Tol. ± 0.5 % Tol. ± 1.0 %
WSL0603 0603 0.1 0.01 to 0.1 0.01 to 0.1 1.9
WSL0805 0805 0.125 0.005 to 0.2 0.005 to 0.2 4.8
WSL1206 1206 0.25 0.005 to 0.2 0.001 to 0.2 16.2
WSL2010 2010 0.5 0.004 to 0.5 0.001 to 0.5 38.9
WSL2512 2512 1.0 (1) 0.003 to 0.5 0.0005 to 0.5 63.6
WSL2816 2816 2.0 0.003 to 0.1 0.002 to 0.1 118
GLOBAL PART NUMBER INFORMATION
Global Part Numbering example: WSL25124L000FEA (visit www.vishay.net Vishay Dale parts numbering manual for all options)
GLOBAL
MODEL
(7 digits)
RESISTANCE
VALUE (1)
(5 digits)
TOLERANCE
CODE
(1 digit)
PACKAGING CODE (2)
(2 digits)
SPECIAL (3)
(up to 2 digits)
WSL0603
WSL0805
WSL1206
WSL2010
WSL2512
WSL2816
L = m*
R = decimal
5L000 = 0.005
R0100 = 0.01
* Use “L” for
resistance
values < 0.01
D = ± 0.5 %
F = ± 1.0 %
J = ± 5.0 %
EA = lead (Pb)-free, tape / reel
EH = lead (Pb)-free, tape / reel (WSL2816)
EK = lead (Pb)-free, bulk
(dash number)
from 1 to 99 as
applicable
TA = tin/lead, tape / reel (R86)
TG = tin/lead, tape / reel (RT1, for WSL0603 and WSL0805)
TH = tin / lead, tape / reel (RJ9, WSL2816)
BA = tin / lead, bulk (B43)
L251 4L02WS E0 FA0
WSL
www.vishay.com Vishay Dale
Revision: 02-May-2018 2Document Number: 30100
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
Notes
(1) Component TCR - total TCR that includes the TCR effects of the resistor element and the copper terminal
(2) Element TCR - only applies to the alloy used for the resistor element; refer to item 1 in the construction illustration on the following page
(3) 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)
Notes
• 3D models available: www.vishay.com/doc?30306
• Surface mount solder profile recommendations: www.vishay.com/doc?31052
TECHNICAL SPECIFICATIONS
PARAMETER UNIT WSL RESISTOR CHARACTERISTICS
Component temperature coefficient
(including terminal) (1)
TCR measured from -55 °C to 150 °C
ppm/°C
± 75 for 7 m to 0.5
± 110 for 5 m to 6.9 m
± 150 for 3 m to 4.9 m
± 275 for 1 m to 2.9 m
± 400 for 0.5 m to 0.99 m
Element TCR (2) ppm/°C < 20
Operating temperature range °C -65 to +170
Maximum working voltage (3) V(P x R)1/2
MODEL RESISTANCE
RANGE ()
DIMENSIONS SOLDER PAD DIMENSIONS
LW H Tabl
WSL0603 0.01 to 0.1 0.060 ± 0.010
(1.52 ± 0.254)
0.030 ± 0.010
(0.76 ± 0.254)
0.013 ± 0.005
(0.330 ± 0.127)
0.015 ± 0.010
(0.381 ± 0.254)
0.040
(1.01)
0.040
(1.01)
0.020
(0.50)
WSL0805 0.005 to 0.2 0.080 ± 0.010
(2.03 ± 0.254)
0.050 ± 0.010
(1.27 ± 0.254)
0.013 ± 0.005
(0.330 ± 0.127)
0.015 ± 0.010
(0.381 ± 0.254)
0.040
(1.02)
0.050
(1.27)
0.020
(0.50)
WSL1206
0.001 to 0.0019
0.126 ± 0.010
(3.20 ± 0.254)
0.063 ± 0.010
(1.60 ± 0.254)
0.025 ± 0.010
(0.635 ± 0.254)
0.041 ± 0.010
(1.04 ± 0.254)
0.062
(1.57)
0.070
(1.78)
0.030
(0.76)
0.002 to 0.0059 0.025 ± 0.010
(0.635 ± 0.254)
0.006 to 0.20 0.020 ± 0.010
(0.508 ± 0.254)
WSL2010
0.001 to 0.0069 0.200 ± 0.010
(5.08 ± 0.254)
0.100 ± 0.010
(2.54 ± 0.254)
0.025 ± 0.010
(0.635 ± 0.254)
0.058 ± 0.010
(1.47 ± 0.254)
0.093
(2.36)
0.120
(3.05)
0.055
(1.40)
0.007 to 0.5 0.020 ± 0.010
(0.508 ± 0.254)
0.055
(1.40)
0.120
(3.05)
0.130
(3.30)
WSL2512
0.0005 to 0.00099
0.250 ± 0.010
(6.35 ± 0.254)
0.125 ± 0.010
(3.18 ± 0.254)
0.025 ± 0.010
(0.635 ± 0.254)
0.107 ± 0.010
(2.72 ± 0.254) 0.120
(3.05)
0.145
(3.68)
0.050
(1.27)
0.001 to 0.0049 0.087 ± 0.010
(2.21 ± 0.254)
0.005 to 0.0069 0.047 ± 0.010
(1.19 ± 0.254)
0.083
(2.11)
0.125
(3.18)
0.007 to 0.5 0.030 ± 0.010
(0.762 ± 0.254)
0.065
(1.65)
0.160
(4.06)
WSL2816
0.002 to 0.00399 0.280 ± 0.010
(7.1 ± 0.254)
0.165 ± 0.010
(4.2 ± 0.254)
0.025 ± 0.010
(0.635 ± 0.254)
0.098 ± 0.010
(2.49 ± 0.254)
0.135
(3.43) 0.185
(4.7)
0.060
(1.52)
0.004 to 0.1 0.062 ± 0.010
(1.57 ± 0.254)
0.096
(2.45)
0.125
(3.20)
L
T
W
H
lb
a
Typical sensing traces
WSL
www.vishay.com Vishay Dale
Revision: 02-May-2018 3Document Number: 30100
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
DERATING PULSE CAPABILITY
www.vishay.com/resistors/power-metal-strip-calculator
WELDED CONSTRUCTION
2816, 2512, 2010, 1206
CLAD CONSTRUCTION 0805 and 0603
Notes
• Embossed carrier tape per EIA-481
(1) Additional packaging details at www.vishay.com/doc?20051
70
120
100
80
60
40
20
0
- 65 - 50 - 25 0 25 50 75 100 125 150 170
Ambient Temperature in °C
Rated Power in %
I
I
L
L
L
L
U
S
T
R
A
T
A
A
I
V
E
P
U
R
R
P
P
O
S
E
E
S
S
O
O
N
L
Y
Y
L
L
LL
click to get started
1) Resistive element:
solid metal nickel-chrome
or manganese-copper
alloy resistive element with
low TCR (< 20 ppm/°C)
2) Plated terminal: Solid copper,
100 % Sn (100 " min.) with
100 % Ni (20 " min.) under
layer nish
3) Terminal / element weld
4) Silicone coating with ink print
23
1
4
1) Resistive element: Ni-Cr
2) Terminal: Solid copper,
100 % Sn (100 µ" min.) with
100 % Ni (20 µ" min.) under
layer nish
3) Terminal to element weld
4) High temperature encapsulant:
“siliconized polyester”
coating material
1
4
3
2
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
Short time overload 5 x rated power for 5 s ± 0.5 % + 0.0005
Low temperature operation -65 °C for 24 h ± 0.5 % + 0.0005
High temperature exposure 1000 h at + 170 °C ± 1.0 % + 0.0005
Bias humidity +85 °C, 85 % RH, 10 % bias, 1000 h ± 0.5 % + 0.0005
Mechanical shock 100 g’s for 6 ms, 5 pulses ± 0.5 % + 0.0005
Vibration Frequency varied 10 Hz to 2000 Hz in 1 min, 3 directions, 12 h ± 0.5 % + 0.0005
Load life 1000 h at rated power, + 70 °C, 1.5 h “ON”, 0.5 h “OFF” ± 1.0 % + 0.0005
Resistance to solder heat +260 °C solder, 10 s to 12 s dwell, 25 mm/s emergence ± 0.5 % + 0.0005
Moisture resistance MIL-STD-202, method 106, 0 % power, 7a and 7b not required ± 0.5 % + 0.0005
PACKAGING (1)
MODEL REEL
TAPE WIDTH DIAMETER PIECES/REEL CODE
WSL0603 8 mm/punched paper 178 mm/7"5000 EA
WSL0805 8 mm/punched paper 178 mm/7"5000 EA
WSL1206 8 mm/embossed plastic 178 mm/7"4000 EA
WSL2010 12 mm/embossed plastic 178 mm/7"4000 EA
WSL2512 12 mm/embossed plastic 178 mm/7"2000 EA
WSL2816 12 mm/embossed plastic 178 mm/7"2000 EH
Legal Disclaimer Notice
www.vishay.com Vishay
Revision: 08-Feb-17 1Document Number: 91000
Disclaimer
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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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Parameters provided in datasheets and / or specifications may vary in different applications and performance may vary over
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