WSC, WSN
Vishay Dale
Wirewound Resistors,
Precision Power, Surface Mount
FEATURES
• All welded construction
• Molded encapsulation
• Wraparound terminations
Pb-free
Available
• 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)
e3
RoHS*
COMPLIANT
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
HISTORICAL
MODEL
SIZE
INCH
POWER RATING P70 °C TOLERANCE
RESISTANCE RANGE
ENCAPSULATION
ꢀ
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 - 4.99
0.1 - 2.77K
0.1 - 2.77K
0.1 - 4.92K
0.1 - 4.92K
0.1 - 8K
Epoxy
Epoxy
Thermoplastic
Epoxy
Thermoplastic
Thermoplastic
Note
• Part Marking: 1/2 W - DALE, Value; 1 W - Model, Value, Tolerance, Date Code; 2 W & 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.
TECHNICAL SPECIFICATIONS
PARAMETER
UNIT
WSC01/2
WSC0001
WSC2515
WSC0002
WSC4527/WSC6927
0.1 Ω- 0.3 Ω = 150
0.31 Ω- 0.99 Ω = 90
1.0 Ω - 26.5 Ω = 50
0.1 Ω- 0.3 Ω = 150
0.31 Ω- 0.99 Ω = 90
1.0 Ω - 9.9 Ω = 50
0.1 Ω- 0.99 Ω = 90
1.0 Ω - 26.5 Ω = 50
26.51 Ωand above = 20
0.1 Ω- 0.99 Ω= 90
1.0 Ω - 9.9 Ω = 50
10.0 Ω and above = 20
0.1 Ω- 0.99 Ω= 90
1.0 Ω- 4.99 Ω= 50
Temperature
Coefficient
ppm/°C
26.51 Ωand above = 20
10 Ω and above = 20
Dielectric
VAC
Ω
> 500
> 109
> 500
> 109
> 500
> 109
> 500
> 109
> 500
> 109
Withstanding Voltage
Insulation Resistance
Operating
Temperature Range
°C
- 65/+ 175
- 65/+ 175
- 65/+ 275
- 65/+ 175
- 65/+ 275
Maximum Working
Voltage
Weight/1000 pieces
(typical)
V
g
(P x R)1/2
(P x R)1/2
(P x R)1/2
(P x R)1/2
(P x R)1/2
90
165
165
760
760/1675
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: WSC2515R7000FEA (preferred part numbering format)
A
E
5
R
W
S
C
2
5
1
7
0
0
0
F
GLOBAL MODEL
SIZE
VALUE
TOLERANCE
PACKAGING
EA = Lead (Pb)-free, tape/reel
EK = Lead (Pb)-free, bulk
TA = Tin/Lead, Tape/reel (R86)
BA = Tin/Lead, bulk (B43)
SPECIAL
WSC
WSN
01/2
0001
2515
0002
4527
6927
R = decimal
B = 0.1 % 2)
C = 0.25 % 2)
D = 0.5 %
F = 1.0 %
G = 2.0 %
H = 3.0 %
J = 5.0 %
K = 10 %
(Dash Number)
(up to 2 digits)
From 1-99 as
applicable
K = thousand
54R15 = 54.15 Ω
1K500 = 1.5 kΩ
Historical Part Number example: WSC2515 0.7 Ω 1 % R86 (will continue to be accepted)
WSC2515
0.7 Ω
1 %
R86
TOLERANCE
PACKAGING
HISTORICAL MODEL
RESISTANCE VALUE
CODE
Note
2) WSC2515 only
* Pb containing terminations are not RoHS compliant, exemptions may apply
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For technical questions, contact: ww2aresistors@vishay.com
Document Number: 30102
Revision: 03-Aug-07