WSL3921_15 Datasheet, PDF (1/4 Pages) Vishay Siliconix – Power Metal Strip® Resistors, Low Value (down to 0.0002 ), Surface Mount

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WSL3921, WSL5931
Vishay Dale
Power Metal Strip^® Resistors,
Low Value (down to 0.0002 ), Surface Mount
FEATURES
• Ideal for all types of current sensing, voltage
division and pulse applications including
switching and linear power supplies,
instruments, power amplifiers
• Proprietary processing technique produces
extremely low resistance values, down to
0.0002 
• Construction is impervious against a high sulfur
environment (ASTM B 809-95 test method)
Available
• All welded construction
• Solid metal iron-chrome or manganese-copper alloy
resistive element with low TCR (< 20 ppm/°C)
• Very low inductance 0.5 nH to 5 nH
• Low thermal EMF (< 3 μV/°C)
• AEC-Q200 qualified available ⁽¹⁾
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
Note
(1) _{Flame retardance test may not be applicable to some resistor}
technologies
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL 
MODEL
SIZE
POWER RATING
P_{70 °C}
W
TOLERANCE
%
WSL3921 3921
3.0
1.0, 5.0
WSL5931 5931
5.0
1.0, 5.0
Note
(1) _{Other values may be available, contact factory.}
RESISTANCE VALUE
RANGE

0.2m to 4m
0.2m to 3m
RESISTANCE VALUES
CURRENTLY AVAILABLE ⁽¹⁾

0.2m, 0.3m, 0.5m, 1m, 2m, 3m, 4m
0.2m, 0.3m, 0.5m, 1m, 2m, 3m
WEIGHT
(typical)
g/1000 pieces
281
398
TECHNICAL SPECIFICATIONS
PARAMETER
Component temperature coefficient
(including terminal) ⁽¹⁾
Element TCR ⁽²⁾
UNIT
ppm/°C
ppm/°C
RESISTOR CHARACTERISTICS
WSL3921
WSL5931
± 325 for 0.2 m, ± 175 for 0.3 m and ± 225 for 0.2 m, ± 175 for 0.3 m and
0.5 m, ± 75 for 1 m to 4 m
0.5 m, ± 75 for 1 m to 4 m
< 20
Operating temperature range
°C
Maximum working voltage ⁽³⁾
V
-65 to +170
(P x R)^1/2
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.}
GLOBAL PART NUMBER INFORMATION
Global Part Numbering: WSL3921L5000FEA (WSL3921, 0.0005 , ± 1 %)
WS L 3 9 2 1 L 5 0 0 0 F E A
GLOBAL MODEL
WSL3921
WSL5931
RESISTANCE VALUE
L = m
L5000 = 0.0005 
TOLERANCE CODE
F = ± 1.0 %
J = ± 5.0 %
PACKAGING CODE
EA = Lead (Pb)-free, tape/reel
EK = Lead (Pb)-free, bulk
SPECIAL
(Dash number)
(Up to 2 digits)
From 1 to 99 as
applicable
Revision: 20-Jul-15
1
Document Number: 30110
For technical questions, contact: [e-mail]
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