WSL2726 Datasheet

WSL2726
www.vishay.com
Vishay Dale
Power Metal Strip® Resistors, Low Value,
High Power, Surface Mount, 4-Terminal
FEATURES
• 4-Terminal design allows for 1 % tolerance
down to 0.0003 
Available
• High power to foot print size ratio
• Ideal for all types of current sensing, voltage
division and pulse applications including
switching and linear power supplies,
instruments, power amplifiers and shunts
• Proprietary processing technique produces
extremely low resistance values, down to
0.0003 
• All welded construction
• 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 μV/°C)
• AEC-Q200 qualified (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 
SIZE
MODEL
WSL2726
POWER RATING
TOLERANCE
P70 °C
±%
W
2726
3.0
RESISTANCE
VALUE RANGE

RESISTANCE VALUES
CURRENTLY AVAILABLE (1)

WEIGHT
(typical)
g/1000 pieces
0.3m to 5m
0.3m, 0.5m, 0.7m, 1m, 2m, 3m, 4m, 5m
420
1.0
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 example: WSL2726L5000FEA (WSL2726, 0.0005 , ± 1 %)
W
S
L
2
7
2
6
L
5
0
0
0
F
E
A
GLOBAL MODEL
RESISTANCE VALUE
TOLERANCE CODE
PACKAGING CODE (1)
SPECIAL
WSL2726
L = m
L3000 = 0.0003 
L5000 = 0.0005 
L7000 = 0.0007 
1L000 = 0.0010 
2L000 = 0.0020 
3L000 = 0.0030 
4L000 = 0.0040 
5L000 = 0.0050 
F = ± 1.0 %
EA = lead (Pb)-free, tape/reel
EK = lead (Pb)-free, bulk
(Dash number)
(Up to 2 digits)
From 1 to 99 as
applicable
Note
(1) 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.
Revision: 03-Jun-16
Document Number: 30131
1
For technical questions, contact: [email protected]
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
WSL2726
www.vishay.com
Vishay Dale
TECHNICAL SPECIFICATIONS
PARAMETER
UNIT
RESISTOR CHARACTERISTICS
Component temperature coefficient
(including terminal) (1)
ppm/°C
± 75 for 0.5 m to 5 m, ± 110 for 0.3 m
Element TCR (2)
ppm/°C
< 20
Operating temperature range
°C
-65 to +170
Maximum working voltage (3)
V
(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.
DIMENSIONS
DIMENSIONS in inches (millimeters)
MODEL
WSL2726
L
W
H
R
(REF.)
0.272 ± 0.008
(6.9 ± 0.2)
0.260 + 0.012/- 0.008
(6.6 + 0.3/- 0.2)
Please see
table below
0.198
(5.0)
W
S
0.028 ± 0.004 0.016 ± 0.002
(0.7 ± 0.1)
(0.4 ± 0.05)
MODEL
L
WSL2726
S
U
MODEL
T
N
R
T
U
N
0.078 ± 0.004
(2.0 ± 0.1)
0.039 0.006
(0.99 ± 0.15)
SOLDER PAD DIMENSIONS in inches (millimeters)
a
b
c
d
w
0.220
(5.6)
0.096
(2.44)
0.035
(0.89)
0.035
(0.89)
0.290
(7.4)
RESISTANCE
VALUE
(m)
ELEMENT
MATERIAL
HEIGHT
H
0.3
Mn-Cu
0.141 ± 0.008
(3.58 ± 0.2)
0.5
Mn-Cu
0.116 ± 0.008
(2.95 ± 0.2)
0.7
Mn-Cu
0.111 ± 0.008
(2.82 ± 0.2)
1.0
Mn-Cu
0.1055 ± 0.008
(2.68 ± 0.2)
2.0
Ni-Cr
0.114 ± 0.008
(2.9 ± 0.2)
3.0
Ni-Cr
0.110 ± 0.008
(2.79 ± 0.2)
4.0
Ni-Cr
0.110 ± 0.008
(2.79 ± 0.2)
5.0
Ni-Cr
0.110 ± 0.008
(2.79 ± 0.2)
H
c
d
b
a
w
b
Note
• 3D models available: www.vishay.com/doc?30308.
Revision: 03-Jun-16
WSL2726
Document Number: 30131
2
For technical questions, contact: [email protected]
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
WSL2726
www.vishay.com
Vishay Dale
DERATING - TERMINAL TEMPERATURE
120
P/PNorm in %
Rated Power in %
DERATING - AMBIENT TEMPERATURE
100
80
120
100
80
60
60
40
40
20
20
0
-65 -50
-25
0
25
50
70
100
125
Stability < 1.0 %
Stability < 0.5 %
0
150 170
0
20
40
60
80
Ambient Temperature in °C
100
120
140
160
180
Terminal Temperature TK in °C
Example: WSL2726 0.0005 , 0.001 
PERFORMANCE
TEST
CONDITIONS OF TEST
TEST LIMITS
Thermal shock
-55 °C to +150 °C, 1000 cycles, 15 min at each extreme
± 0.5 %
Short time overload
0.3 m, 0.5 m, 2 m and 3 m - 5x rated power for 5 s
4 m and 5 m - 3x rated power for 5 s
± 0.5 %
Low temperature operation
-65 °C for 45 min
± 0.5 %
High temperature exposure
1000 h at +170 °C
± 1.0 %
Bias humidity
+85 °C, 85 % RH, 10 % bias, 1000 h
± 0.5 %
Mechanical shock
100 g’s for 6 ms, 5 pulses
± 0.5 %
Vibration
Frequency varied 10 Hz to 2000 Hz in 1 min, 3 directions, 12 h
± 0.5 %
Load life
1000 h at +70 °C, 1.5 h “ON”, 0.5 h “OFF”
± 1.0 %
Resistance to solder heat
+260 °C solder, 10 s to 12 s dwell, 25 mm/s emergence
± 0.5 %
Moisture resistance
MIL-STD-202, method 106, 0 % power, 7b not required
± 0.5 %
PACKAGING
REEL
MODEL
WSL2726
TAPE WIDTH
DIAMETER
PIECES/REEL
CODE
16 mm/embossed plastic
330 mm/13"
1500
EA
Note
• Embossed carrier tape per EIA-481.
Revision: 03-Jun-16
Document Number: 30131
3
For technical questions, contact: [email protected]
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
Legal Disclaimer Notice
www.vishay.com
Vishay
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively,
“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
disclosure relating to any product.
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
purpose, non-infringement and merchantability.
Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of typical
requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements
about the suitability of products for a particular application. It is the customer’s responsibility to validate that a particular
product with the properties described in the product specification is suitable for use in a particular application. Parameters
provided in datasheets and/or specifications may vary in different applications and performance may vary over time. All
operating parameters, including typical parameters, must be validated for each customer application by the customer’s
technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,
including but not limited to the warranty expressed therein.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
applications or for any other application in which the failure of the Vishay product could result in personal injury or death.
Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk. Please
contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by
any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners.
Material Category Policy
Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as RoHS-Compliant fulfill the
definitions and restrictions defined under Directive 2011/65/EU of The European Parliament and of the Council
of June 8, 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment
(EEE) - recast, unless otherwise specified as non-compliant.
Please note that some Vishay documentation may still make reference to RoHS Directive 2002/95/EC. We confirm that
all the products identified as being compliant to Directive 2002/95/EC conform to Directive 2011/65/EU.
Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as Halogen-Free follow Halogen-Free
requirements as per JEDEC JS709A standards. Please note that some Vishay documentation may still make reference
to the IEC 61249-2-21 definition. We confirm that all the products identified as being compliant to IEC 61249-2-21
conform to JEDEC JS709A standards.
Revision: 02-Oct-12
1
Document Number: 91000