WSK0612
www.vishay.com
Vishay Dale
Power Metal Strip
®
Resistors, High Power,
Surface Mount, 4-Terminal
FEATURES
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 manganese-
copper 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
DESIGN SUPPORT TOOLS
Models
Available
Design Tools
click logo to get started
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
WSK0612
SIZE
POWER RATING
P
70 °C
W
1.0
TOLERANCE
±%
1.0
RESISTANCE VALUE
RANGE
0.50m to 5.0m
RESISTANCE VALUES
CURRENTLY AVAILABLE
(1)
0.5m, 0.75m, 0.8m,
1m, 2m, 3m, 4m, 5m
WEIGHT
(typical)
g/1000 pieces
8.2
0612
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
SPECIAL
(2 digits)
(dash number)
(up to 2 digits)
from
1 to 99
as
applicable
GLOBAL MODEL
(7 digits)
WSK0612
RESISTANCE VALUE
(5 digits)
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
TOLERANCE CODE
(1 digit)
F
= ± 1.0 %
PACKAGING CODE
(1)
(2 digits)
EA
= lead (Pb)-free, tape/reel
EK
= lead (Pb)-free, bulk
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
Maximum working voltage
°C
V
-65 to +170
(P x
R)
1/2
DIMENSIONS
T
W
H
c
d
A
B
L
a
l
b
Notes
• 3D models available:
www.vishay.com/doc?30378
• Surface mount solder profile recommendations:
www.vishay.com/doc?31052
DIMENSIONS
in inches (millimeters)
MODEL
L
WSK0612
0.060 ± 0.010
(1.50 ± 0.254)
W
0.120 ± 0.010
(3.05 ± 0.254)
H
0.015 ± 0.010
(0.381 ± 0.254)
T
0.015 ± 0.010
(0.381 ± 0.254)
A
0.020 ± 0.005
(0.51 ± 0.127)
B
0.020 ± 0.005
(0.51 ± 0.127)
SOLDER PAD DIMENSIONS
in inches (millimeters)
MODEL
a
WSK0612
0.040 (1.01)
b
0.135 (3.43)
c
0.030 (0.762)
d
0.015 (0.381)
l
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
DERATING
Rated Power in %
120
Vishay Dale
PULSE CAPABILITY
click to get started
100
80
60
40
20
0
-65 -55
U
S
LL
I
- 25
0
25
50
75 100 125 150 170
70
Ambient Temperature in °C
VE
TI
A
TR
S
S
E
O
RP
PU
LY
ON
www.vishay.com/resistors/power-metal-strip-calculator
PERFORMANCE
TEST
Thermal shock
Short time overload
Low temperature operation
High temperature exposure
Bias humidity
Mechanical shock
Vibration
Load life
Resistance to solder heat
Moisture resistance
CONDITIONS OF TEST
-55 °C to +150 °C, 1000 cycles, 15 min at each extreme
5x rated power for 5 s
-65 °C for 24 h
1000 h at +170 °C
+85 °C, 85 % RH, 10 % bias, 1000 h
100
g’s
for 6 ms, 5 pulses
Frequency varied 10 Hz to 2000 Hz in 1 min, 3 directions, 12 h
1000 h at +70 °C, 1.5 h “ON”, 0.5 h “OFF”
+260 °C solder, 10 s to 12 s dwell, 25 mm/s emergence
MIL-STD-202, method 106, 0 % power, 7a and 7b not required
TEST LIMITS
± 1.0 %
± 0.5 %
± 0.5 %
± 2.0 %
± 0.5 %
± 0.5 %
± 0.5 %
± 2.0 %
± 0.5 %
± 1.0 %
PACKAGING
MODEL
(1)
REEL
TAPE WIDTH
WSK0612
8 mm/embossed plastic
DIAMETER
178 mm/7"
PIECES/REEL
4000
CODE
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.
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.
© 2017 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED
Revision: 08-Feb-17
1
Document Number: 91000
