333
3
WSLP2726
www.vishay.com
Vishay Dale
Power Metal Strip Resistors, Very High Power (to 7 W),
Low Value (Down to 0.0002 ), Surface Mount
FEATURES
High power to foot print size ratio
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
0.0002
Sulfur resistance by construction that is
unaffected by high sulfur environments
Specially selected and stabilized materials allow for high
power rating (to 7 W)
Solid metal nickel-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 V/C)
ADDITIONAL RESOURCES
(1)
AEC-Q200 qualified
Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
3D Models Design Tools
Notes
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
STANDARD ELECTRICAL SPECIFICATIONS
POWER RATING RESISTANCE VALUE RESISTANCE VALUES WEIGHT
GLOBAL TOLERANCE
(2)
SIZE P RANGE CURRENTLY AVAILABLE (typical)
70 C
MODEL %
W g/1000 pieces
WSLP2726 2726 5.0 1.0, 5.0 1.3m to 5m 1.3m, 2m, 3m, 4m, 5m 420
WSLP2726 2726 7.0 1.0, 5.0 0.2m to 1m 0.2m, 0.3m, 0.5m, 0.7m, 1m 420
Notes
Power rating depends on the max. temperature at the solder point, component placement density and the substrate material
Part marking: model, value, tolerance, date code
(1)
Other values may be available, contact factory
GLOBAL PART NUMBER INFORMATION
Global Part Numbering: WSLP2726L5000FEA (visit www.vishay.net Vishay Dale parts numbering manual for all options)
W S L P 2 7 2 6 L 5 0 0 0 F E A
(1) (2) (3)
GLOBAL MODEL RESISTANCE VALUE TOLERANCE CODE PACKAGING CODE SPECIAL
(8 digits) (5 digits) (1 digit) (2 digits) (up to 2 digits)
WSLP2726 L = m F = 1.0 % EA = lead (Pb)-free, tape/reel (dash number)
L5000 = 0.0005 J = 5.0 % EK = lead (Pb)-free, bulk (up to 2 digits)
L7000 = 0.0007 from 1 to 99 as
1L000 = 0.0010 applicable
2L000 = 0.0020
Notes
(1)
WSL marking (www.vishay.com/doc?30327)
(2)
Packaging code: EB (lead (Pb)-free) is a non-standard packaging code designating 1000 piece reels. The non-standard packaging code i s
identical to our standard EA (lead (Pb)-free), except that it is a package quantity of 1000 pieces
(3)
Follow link for customization capabilities: www.vishay.com/doc?48163
Revision: 13-Feb-2020 Document Number: 30179
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
DDD
D
WSLP2726
www.vishay.com
Vishay Dale
TECHNICAL SPECIFICATIONS
PARAMETER UNIT RESISTOR CHARACTERISTICS
(1) 75 for 0.5 m to 5 m
Component temperature coefficient (including terminal)
ppm/C
TCR measured from -55 C to 150 C
110 for 0.3 m , 75 for 0.2 m
(2)
Element TCR ppm/C < 20
Operating temperature range C -65 to +170
(3) 1/2
Maximum working voltage V(P x R)
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 Outline
(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) CONSTRUCTION OUTLINE
W L
c
1 Resistive element:
refer to table below
d
b for element material
a
S 2 Terminal: solid copper
w
b
U
T
3 Terminal / element weld
R N
1
H
3
2
Notes
3D models available: www.vishay.com/doc?30314
Surface mount solder profile recommendations: www.vishay.com/doc?31052
DIMENSIONS
MODEL
R
LW H ST U N
(REF.)
0.272 0.008 0.260 + 0.012/- 0.008 Please see 0.195 0.028 0.004 0.016 0.002 0.078 0.004 0.039 0.006
WSLP2726
(6.9 0.2) (6.6 + 0.3/- 0.2) table below (5.0) (0.7 0.1) (0.4 0.05) (2.0 0.1) (0.99 0.15)
SOLDER PAD DIMENSIONS
MODEL
ab cd w
0.220 0.096 0.035 0.035 0.290
WSLP2726
(5.6) (2.44) (0.89) (0.89) (7.4)
(1)
RESISTANCE VALUE THERMAL RESISTANCE HEIGHT
MODEL ELEMENT MATERIAL
(m) (C/W) H
0.2 3 Mn-Cu-Sn 0.150 0.008 (3.81 0.2)
0.3 4 Mn-Cu 0.141 0.008 (3.58 0.2)
0.5 6 Mn-Cu 0.116 0.008 (2.95 0.2)
0.7 8 Mn-Cu 0.111 0.008 (2.82 0.2)
1.0 10 Mn-Cu 0.1055 0.008 (2.68 0.2)
WSLP2726
1.3 11 Ni-Cr 0.119 0.008 (3.02 0.2)
2.0 16 Ni-Cr 0.114 0.008 (2.9 0.2)
3.0 19 Ni-Cr 0.110 0.008 (2.79 0.2)
4.0 22 Ni-Cr 0.110 0.008 (2.79 0.2)
5.0 38 Ni-Cr 0.110 0.008 (2.79 0.2)
Note
(1)
The full power rating of Power Metal Strip resistors are dependent upon the ability of the circuit board to dissipate the heat energy created
in the resistance element. It is recommended to follow common design practices for power semiconductors that ensure the junctio n
temperature is maintained with in thermal limits by using large pad surfaces, thermal vias, heavier copper weights, internal layers as well as
other thermal spreading features. The thermal resistance values provided function in the same manner as junction to terminal temperature
Revision: 13-Feb-2020 Document Number: 30179
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