WSL, Wide Terminal

www.vishay.com

Vishay Dale

Revision: 07-Mar-18

Document Number: 30183

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, Wide Terminal,

Low Value (0.00075  to 0.006 ), Surface Mount

DESIGN SUPPORT TOOLS

FEATURES

• Wide side terminal construction that yields high

power to foot print size ratio (2 W in 1020 and

1 W in 0612 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 low

resistance values (down to 0.00075 )

• 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

(1)

WSL Marking (www.vishay.com/doc?30327); WSL Decade Values (www.vishay.com/doc?30117)

(2)

EB (lead (Pb)-free) is a non-standard packaging code designated for 1000 piece reels. The non-standard packaging code is identical to our

standard EA (lead (Pb)-free), except that it has a package quantity of 1000 pieces

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Available

Models

Available

Design Tools

Available

STANDARD ELECTRICAL SPECIFICATIONS

GLOBAL 

MODEL

SIZE

POWER RATING

70 °C

TOLERANCE

± %

RESISTANCE

VALUE RANGE



WEIGHT

(typical)

g/1000 pieces

WSL0612 0612 1.0 1.0, 5.0 0.75m to 5m 8.5

WSL1020 1020 2.0 0.5, 1.0, 5.0 1m to 6m 38.74

GLOBAL PART NUMBER INFORMATION

Global Part Numbering: WSL10206L000FEA (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

(up to 2 digits)

WSL0612

WSL1020

L = m*

1L000 = 0.001 

2L000 = 0.002 

3L000 = 0.003 

4L000 = 0.004 

5L000 = 0.005 

6L000 = 0.006 

* Use “L” for resistance

values < 0.01 

D = ± 0.5 %

F = ± 1.0 %

J = ± 5.0 %

EA = lead (Pb)-free, tape / reel

EK = lead (Pb)-free, bulk

(dash number)

from 1 to 99 as

applicable

W S L 1 0 2 0 6 L 0 0 0 F E A

WSL, Wide Terminal

www.vishay.com

Vishay Dale

Revision: 07-Mar-18

Document Number: 30183

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

(4)

Typical TCR is positive, for more details contact factory

DIMENSIONS

Notes

• 3D models available: www.vishay.com/doc?30348

• Surface mount solder profile recommendations: www.vishay.com/doc?31052

WELDED CONSTRUCTIONS

1. Resistive element: nickel-chrome or manganese-copper

alloy with low TCR (< 20 ppm/°C)

2. Terminal: solid copper with 100 % Sn finish

100 % Sn (100 μ" min.) with 100 % Ni (20 μ" min.) under

layer finish

3. Terminal / element weld (electron beam weld)

4. High temperature encapsulant: “siliconized polyester”

coating material

5. Laser calibration

TECHNICAL SPECIFICATIONS

PARAMETER UNIT

RESISTOR CHARACTERISTICS

WSL0612 WSL1020

Component temperature coefficient

(including terminal)

(1)

ppm/°C

+250

(4)

for 0.75 mand 1.9 m

< 50

+150

(4)

for 2 m to 6 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

DIMENSIONS in inches (millimeters)

L W H T

WSL0612

0.120 ± 0.005

(3.05 ± 0.127)

0.060 ± 0.005

(1.50 ± 0.127)

0.018 ± 0.010

(0.457 ± 0.254)

0.015 ± 0.010

(0.381 ± 0.254)

WSL1020

0.200 ± 0.005

(5.08 ± 0.127)

0.100 ± 0.005

(2.54 ± 0.127)

0.025 ± 0.005

(0.635 ± 0.127)

0.022 ± 0.008

(0.558 ± 0.203)

MODEL

SOLDER PAD DIMENSIONS in inches (millimeters)

a b c

WSL0612

0.030

(0.76)

0.078

(1.98)

0.134

(3.40)

WSL1020

0.039

(1.00)

0.138

(3.50)

0.222

(5.65)

Typical sensing traces