WSK0612
www.vishay.com
Vishay Dale
Power Metal Strip® Resistors, High Power,
Surface Mount, 4-Terminal
FEATURES
DESIGN SUPPORT TOOLS
Models
Available
• 4-Terminal design
• 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
• Sulfur resistance by construction that is
unaffected by high sulfur environments
• Low thermal EMF (< 3 μV/°C)
• Solid metal nickel-chrome or manganesecopper resistive element with low TCR
(< 20 ppm/°C)
• AEC-Q200 qualified available (1)
• PATENT(S): www.vishay.com/patents
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
click logo to get started
Design Tools
Available
Available
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
GLOBAL
MODEL
SIZE
POWER RATING
P70 °C
W
TOLERANCE
±%
RESISTANCE VALUE
RANGE
RESISTANCE VALUES
CURRENTLY AVAILABLE (1)
WEIGHT
(typical)
g/1000 pieces
WSK0612
0612
1.0
1.0
0.50m to 5.0m
0.5m, 0.75m, 0.8m,
1m, 2m, 3m, 4m, 5m
8.2
Note
(1) Other values may be available, contact factory
GLOBAL PART NUMBER INFORMATION
Global Part Numbering example: WSK06121L000FEA (visit www.vishay.net Vishay Dale parts numbering manual for all options)
W
S
K
0
6
1
2
1
L
0
0
0
F
E
A
GLOBAL MODEL
(7 digits)
RESISTANCE VALUE
(5 digits)
TOLERANCE CODE
(1 digit)
PACKAGING CODE (1)
(2 digits)
SPECIAL
(2 digits)
WSK0612
L = m
L5000 = 0.0005
L7500 = 0.00075
L8000 = 0.0008
1L000 = 0.001
2L000 = 0.002
3L000 = 0.003
4L000 = 0.004
5L000 = 0.005
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) EB (lead (Pb)-free) is a non-standard packaging code designating 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
PATENT(S): www.vishay.com/patents
This Vishay product is protected by one or more United States and international patents.
Revision: 13-Feb-18
Document Number: 30161
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
WSK0612
www.vishay.com
Vishay Dale
TECHNICAL SPECIFICATIONS
PARAMETER
UNIT
RESISTOR CHARACTERISTICS
0 to -600 for 0.5 m
± 200 for 0.75 m
Temperature coefficient
ppm/°C
0 to -275 for 1 m
0 to -225 for 2 m
0 to -150 for 3 m, 4 m, and 5 m
Operating temperature range
°C
-65 to +170
Maximum working voltage
V
(P x R)1/2
DIMENSIONS
T
W
H
c
d
l
A
B
b
a
L
Notes
• 3D models available: www.vishay.com/doc?30378
• Surface mount solder profile recommendations: www.vishay.com/doc?31052
DIMENSIONS in inches (millimeters)
MODEL
WSK0612
L
W
H
T
A
B
0.060 ± 0.010
(1.50 ± 0.254)
0.120 ± 0.010
(3.05 ± 0.254)
0.015 ± 0.010
(0.381 ± 0.254)
0.015 ± 0.010
(0.381 ± 0.254)
0.020 ± 0.005
(0.51 ± 0.127)
0.020 ± 0.005
(0.51 ± 0.127)
SOLDER PAD DIMENSIONS in inches (millimeters)
MODEL
WSK0612
a
b
c
d
l
0.040 (1.01)
0.135 (3.43)
0.030 (0.762)
0.015 (0.381)
0.030 (0.76)
4 TERMINAL KELVIN CONNECTIONS
E1
I1
E2
I2
Notes
• E1 and E2: voltage sense connection
• I1 and I2: current connection
Revision: 13-Feb-18
Document Number: 30161
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
WSK0612
www.vishay.com
Vishay Dale
Rated Power in %
DERATING
PULSE CAPABILITY
120
click to get started
100
80
60
40
US
ILL
20
0
-65 -55
- 25
0
25
50
75 100 125 150 170
70 Ambient Temperature in °C
VE
TI
A
TR
S
SE
O
RP
PU
LY
ON
www.vishay.com/resistors/power-metal-strip-calculator
PERFORMANCE
TEST
CONDITIONS OF TEST
TEST LIMITS
Thermal shock
-55 °C to +150 °C, 1000 cycles, 15 min at each extreme
± 1.0 %
Short time overload
5x rated power for 5 s
± 0.5 %
Low temperature operation
-65 °C for 24 h
± 0.5 %
High temperature exposure
1000 h at +170 °C
± 2.0 %
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”
± 2.0 %
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, 7a and 7b not required
± 1.0 %
PACKAGING
(1)
REEL
MODEL
WSK0612
TAPE WIDTH
DIAMETER
PIECES/REEL
CODE
8 mm/embossed plastic
178 mm/7"
4000
EA
Notes
• Embossed Carrier Tape per EIA-481
(1) Additional packaging details at www.vishay.com/doc?20051
Revision: 13-Feb-18
Document Number: 30161
3
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
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.
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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
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Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for
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© 2019 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED
Revision: 01-Jan-2019
1
Document Number: 91000