WSC, WSN
Vishay Dale
Wirewound Resistors,
Precision Power, Surface Mount
FEATURES
•
•
•
•
•
•
•
•
•
(1)
All welded construction
Molded encapsulation
Wraparound terminations
Excellent stability at different environmental
conditions
High power ratings (up to 3 W)
Superior surge capability
Available in non-inductive styles with Ayrton-
Perry winding (WSN in lieu of WSC, maximum
resistance is one-half WSC range)
AEC-Q200 qualified available
(1)
Compliant to RoHS Directive 2002/95/EC
Flame retardance test may not be applicable to
some resistor technologies.
Note
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL HISTORICAL SIZE POWER RATING
P
70 °C
RESISTANCE RANGE
TOLERANCE
WEIGHT (typical) ENCAPSULATION
MODEL
MODEL
W
±%
g/1000 pieces
WSC01/2
WSC-1/2
2012
0.5
0.1 to 4.99
0.5, 1, 5
90
Epoxy
0.5, 1, 5
165
Thermoplastic
(3)
WSC0001
WSC-1
2515
1
0.1 to 2.77K
WSC2515
WSC2515
2515
1
0.1 to 2.5K
0.1, 0.25, 0.5, 1, 5
(2)
165
Thermoplastic
0.5, 1, 5
760
Thermoplastic
(3)
WSC0002
WSC-2
4527
2
0.1 to 4.92K
WSC4527
WSC4527
4527
2
0.1 to 4.92K
0.5, 1, 5
760
Thermoplastic
0.5, 1, 5
1675
Thermoplastic
WSC6927
WSC6927
6927
3
0.1 to 8K
Notes
• Part marking: 1/2 W - DALE, value; 1 W - model, value, tolerance, date code; 2 W and 3 W - DALE, model, value, tolerance, date code.
(2)
0.1 % and 0.25 % is available on the WSC2515 for 0.499
to 2.5 k range.
(3)
As of 1/1/2010, the WSC0001 and WSC0002 are molded with thermoplastic in lieu of epoxy. Reference PCN-DR-002-2009 and PCN-DR-003-2009
TECHNICAL SPECIFICATIONS
PARAMETER
Temperature
Coefficient
Dielectric
Withstanding Voltage
Insulation Resistance
Operating
Temperature Range
Maximum Working
Voltage
WSC2515
WSC0002
and above;
± 20 = 26.51
and above; ± 20 = 26.51
to 26.5
;
± 20 = 10.0
and above;
± 50 = 1.0
ppm/°C ± 50 = 1.0
to 4.99
± 50 = 1.0
to 26.5
;
± 50 = 1.0
to 9.9
± 90 = 0.1
to 0.99
± 90 = 0.1
to 0.99
± 90 = 0.31
to 0.99
± 90 = 0.1
to 0.99
;
± 150 = 0.1
to 0.3
V
AC
°C
V
- 65 to + 175
> 500
> 10
9
- 65 to + 275
(P x R)
1/2
UNIT
WSC01/2
WSC0001
WSC4527/WSC6927
± 20 = 10
and above;
± 50 = 1.0
to 9.9
;
± 90 = 0.31
to 0.99
± 150 = 0.1
to 0.3
GLOBAL PART NUMBER INFORMATION
Global Part Numbering example: WSC2515R7000FEA
W
S
C
2
SIZE
01/2
0001
2515
0002
4527
6927
5
1
5
VALUE
R
7
0
0
0
F
E
A
SPECIAL
(Dash number)
(Up to 2 digits)
From
1 to 99
as applicable
GLOBAL MODEL
WSC
WSN
TOLERANCE
B
= ± 0.1 %
(4)
C
= ± 0.25 %
(4)
D
= ± 0.5 %
F
= ± 1.0 %
G
= ± 2.0 %
H
= ± 3.0 %
J
= ± 5.0 %
K
= ± 10 %
PACKAGING
EA
= Lead (Pb)-free, tape/reel
EK
= Lead (Pb)-free, bulk
TA
= Tin/lead, tape/reel (R86)
BA
= Tin/lead, bulk (B43)
R
= Decimal
K
= Thousand
R7000
= 0.70
1K500
= 1.5 k
Historical Part Numbering example: WSC-1 0.7
1 % R86
WSC-1
HISTORICAL MODEL
Note
(4)
WSC2515 only
* Pb containing terminations are not RoHS compliant, exemptions may apply
** Please see document “Vishay Material Category Policy”:
www.vishay.com/doc?99902
Document Number: 30102
Revision: 17-Feb-11
For technical questions, contact:
ww2aresistors@vishay.com
www.vishay.com
1
0.7
RESISTANCE VALUE
1%
TOLERANCE
R86
PACKAGING
WSC, WSN
Vishay Dale
DIMENSIONS
in inches (millimeters)
W
H
Wirewound Resistors,
Precision Power, Surface Mount
l
W1
a
T
L
b
GLOBAL
MODEL
WSC01/2
WSC0001
WSC2515
WSC0002
WSC4527
WSC6927
L
0.200 ± 0.020
(5.08 ± 0.508)
0.250 ± 0.020
(6.35 ± 0.508)
0.250 ± 0.020
(6.35 ± 0.508)
0.455 ± 0.020
(11.56 ± 0.508)
0.455 ± 0.020
(11.56 ± 0.508)
0.690 ± 0.032
(17.53 ± 0.813)
DIMENSIONS
H
T
0.096 ± 0.015 0.040 ± 0.010
(2.44 ± 0.381) (1.02 ± 0.254)
0.110 ± 0.015 0.045 ± 0.010
(2.79 ± 0.381) (1.14 ± 0.254)
0.110 ± 0.015 0.045 ± 0.010
(2.79 ± 0.381) (1.14 ± 0.254)
0.167 ± 0.010 0.100 ± 0.010
(4.24 ± 0.254) (2.54 ± 0.254)
0.167 ± 0.010 0.100 ± 0.010
(4.24 ± 0.254) (2.54 ± 0.254)
0.280 ± 0.015 0.100 ± 0.010
(7.11 ± 0.381) (2.54 ± 0.254)
W
0.125 ± 0.005
(3.18 ± 0.127)
0.150 ± 0.005
(3.81 ± 0.127)
0.150 ± 0.005
(3.81 ± 0.127)
0.275 ± 0.005
(6.98 ± 0.127)
0.275 ± 0.005
(6.98 ± 0.127)
0.275 ± 0.005
(6.98 ± 0.127)
Rated Power in %
W
1
0.050 ± 0.010
(1.27 ± 0.254)
0.098 ± 0.005
(2.49 ± 0.127)
0.098 ± 0.005
(2.49 ± 0.127)
0.215 ± 0.005
(5.46 ± 0.127)
0.215 ± 0.005
(5.46 ± 0.127)
0.215 ± 0.015
(5.46 ± 0.381)
120
100
80
60
40
SOLDER PAD DIMENSIONS
A
B
L
0.085 (2.16)
0.090 (2.29)
0.090 (2.29)
0.155 (3.94)
0.155 (3.94)
0.155 (3.94)
0.070 (1.78)
0.115 (2.92)
0.115 (2.92)
0.230 (5.84)
0.230 (5.84)
0.235 (5.97)
0.080 (2.03)
0.115 (2.92)
0.120 (3.05)
0.205 (5.21)
0.205 (5.21)
0.470 (11.94)
TEMPERATURE RISE
Temperature Rise in °C
200
WSC0002
WSC4527
WSC01/2
100
WSC0001
WSC2515
DERATING
150
WSC6927
WSC0001
(1)
WSC0002
(1)
WSC2515
WSC4527
WSC6927
50
20
WSC01/2
0
0
0.5
1.0
1.5
2.0
2.5
3.0
0
- 65
- 25
25
75
70
125
175
225
275
Power in W
Ambient Temperature in °C
Note
(1)
As of 1/1/2010, WSC0001 and WSC0002 will be molded with thermoplastic and have the higher 275 °C temperature derating.
PERFORMANCE
TEST
Thermal Shock
Short Time Overload
Low Temperature Storage
High Temperature Exposure
Bias Humidity
Mechanical Shock
Vibration
Load Life
Resistance to Solder Heat
CONDITIONS OF TEST
- 55 °C to + 150 °C, 1000 cycles, 15 min at each extreme
5 x rated power for 5 s
- 65 °C for 24 h
1000 h at + 275 °C (+ 175 °C for WSC01/2)
+ 85 °C, 85 % RH, 10 % bias, 1000 h
100
g’s
for 11 ms, 5 pulses
Frequency varied 10 Hz to 500 Hz in 1 min, 3 directions, 9 h
1000 h at rated power, + 70 °C, 1.5 h “ON”, 0.5 h “OFF”
+ 260 °C solder, 10 s to 12 s dwell, 25 mm/s emergence
TEST LIMITS
± (0.5 % + 0.05
) R
± (0.2 % + 0.05
) R
± (0.2 % + 0.05
) R
± (0.5 % + 0.05)
R
± (0.2 % + 0.05
) R
± (0.1 % + 0.05
) R
± (0.1 % + 0.05
) R
± (1.0 % + 0.05
) R
± (0.5 % + 0.05)
R
PACKAGING
MODEL
REEL
TAPE WIDTH
12 mm/embossed plastic
16 mm/embossed plastic
24 mm/embossed plastic
32 mm/embossed plastic
DIAMETER
330 mm/13"
330 mm/13"
330 mm/13"
330 mm/13”
PIECES/REEL
2000
2000
1200
725
CODE
EA/TA
EA/TA
EA/TA
EA/TA
WSC01/2
WSC0001/WSC2515
WSC0002/WSC4527
WSC6927
Note
• Embossed Carrier Tape per EIA-481.
www.vishay.com
2
For technical questions, contact:
ww2aresistors@vishay.com
Document Number: 30102
Revision: 17-Feb-11
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.
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“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
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consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
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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.
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No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by
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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
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