WSC, WSN
Vishay Dale
Wirewound Resistors,
Precision Power, Surface Mount
FEATURES
• 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 Aryton-
Perry winding (WSN in lieu of WSC, maximum
resistance is one-half WSC range)
• Compliant to RoHS directive 2002/95/EC
STANDARD ELECTRICAL SPECIFICATIONS
POWER RATING P70 °C
GLOBAL
HISTORICAL
SIZE
TOLERANCE
ꢀ
RESISTANCE RANGE
ENCAPSULATION
MODEL
MODEL
INCH
Ω
W
WSC01/2
WSC0001
WSC2515
WSC0002
WSC4527
WSC6927
WSC-1/2
WSC-1
WSC2515
WSC-2
WSC4527
WSC6927
2012
2515
2515
4527
4527
6927
0.5
1.0
1.0
2.0
2.0
3.0
0.5, 1, 5
0.5, 1, 5
0.5, 1, 5 (1)
0.5, 1, 5
0.5, 1, 5
0.5, 1, 5
0.1 to 4.99
0.1 to 2.77K
0.1 to 2.5K
0.1 to 4.92K
0.1 to 4.92K
0.1 to 8K
Epoxy
Thermoplastic (2)
Thermoplastic
Thermoplastic (2)
Thermoplastic
Thermoplastic
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
(1) 0.1 % and 0.25 % is available on the WSC2515 for 0.499 Ω to 2.5 kΩ range
(2) 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
UNIT
WSC01/2
WSC0001
WSC2515
WSC0002
to 0.99
WSC4527/WSC6927
0.1
Ω
to 0.3
to 0.99
to 26.5
Ω
=
150
90
50
0.1
Ω
to 0.3
to 0.99
to 9.9
Ω
=
150
0.1 Ω
1.0 Ω
26.51
to 0.99
to 26.5
Ω
Ω
=
=
90
50
0.1
Ω
Ω
=
90
50
Temperature
Coefficient
0.1
1.0
Ω
Ω
to 0.99
to 4.99
Ω
Ω
=
=
90
50
0.31
1.0
Ω
Ω
=
0.31
Ω
Ω
Ω
=
90
ppm/°C
1.0 Ω to 9.9 Ω =
Ω
Ω
=
1.0
Ω
=
50
Ω
and above = 20
10.0
Ω
and above = 20
26.51
Ω
and above = 20
10
Ω
and above = 20
Dielectric Withstanding
Voltage
Insulation Resistance
Operating Temperature
Range
Maximum Working
Voltage
Weight/1000 pieces
(typical)
VAC
Ω
> 500
> 109
> 500
> 109
> 500
> 500
> 109
> 500
> 109
> 109
°C
- 65 to + 175
R 1/2
- 65 to + 275
R 1/2
- 65 to + 275
R 1/2
- 65 to + 275
- 65 to + 275
V
g
(
P
x
)
(P
x
)
(P
x
)
(P
x
R 1/2
)
(P x )
R 1/2
90
165
165
760
760/1675
GLOBAL PART NUMBER INFORMATION
Global Part Numbering example: WSC2515R7000FEA (preferred part numbering format)
W
S
C
2
5
1
5
R
7
0
0
0
F
E
A
GLOBAL MODEL
SIZE
VALUE
TOLERANCE
PACKAGING
SPECIAL
WSC
WSN
01/2
0001
2515
0002
4527
6927
R = Decimal
K = Thousand
R7000 = 0.70 Ω
1K500 = 1.5 kΩ
B = 0.1 % (3)
C = 0.25 % (3)
D = 0.5 %
F = 1.0 %
G = 2.0 %
H = 3.0 %
J = 5.0 %
K = 10 %
EA = Lead (Pb)-free, tape/reel
EK = Lead (Pb)-free, bulk
(Dash number)
(Up to 2 digits)
From 1 to 99
as applicable
TA = Tin/lead, tape/reel (R86)
BA = Tin/lead, bulk (B43)
Historical Part Number example: WSC-1 0.7 Ω 1 ꢀ R86 (will continue to be accepted, but will be supplied as WSC0001R7000FTA
WSC-1
0.7 Ω
1 ꢀ
R86
HISTORICAL MODEL
RESISTANCE VALUE
TOLERANCE
PACKAGING
Note
(3) WSC2515 only
* Pb containing terminations are not RoHS compliant, exemptions may apply
www.vishay.com
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For technical questions, contact: ww2aresistors@vishay.com
Document Number: 30102
Revision: 28-Jan-10