www.vishay.com For technical questions, contact: ww2aresistors@vishay.com Document Number: 30102
310 Revision: 03-Aug-07
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)
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.
Note
2) WSC2515 only
* Pb containing terminations are not RoHS compliant, exemptions may apply
Available
Pb-free
RoHS*
COMPLIANT
e3
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
HISTORICAL
MODEL
SIZE
INCH
POWER RATING P70 °C
W
TOLERANCE
± %
RESISTANCE RANGE
Ω
ENCAPSULATION
WSC01/2 WSC-1/2 2012 0.5 0.5, 1, 5 0.1 - 4.99 Epoxy
WSC0001 WSC-1 2515 1.0 0.5, 1, 5 0.1 - 2.77K Epoxy
WSC2515 WSC2515 2515 1.0 0.5, 1, 5 1) 0.1 - 2.77K Thermoplastic
WSC0002 WSC-2 4527 2.0 0.5, 1, 5 0.1 - 4.92K Epoxy
WSC4527 WSC4527 4527 2.0 0.5, 1, 5 0.1 - 4.92K Thermoplastic
WSC6927 WSC6927 6927 3.0 0.5, 1, 5 0.1 - 8K Thermoplastic
TECHNICAL SPECIFICATIONS
PARAMETER UNIT WSC01/2 WSC0001 WSC2515 WSC0002
WSC4527/WSC6927
Temperature
Coefficient
ppm/°C 0.1 Ω - 0.99 Ω = ± 90
1.0 Ω - 4.99 Ω = ± 50
0.1 Ω - 0.99 Ω = ± 90
1.0 Ω - 26.5 Ω = ± 50
26.51 Ω and above = ± 20
0.1 Ω - 0.3 Ω = ± 150
0.31 Ω - 0.99 Ω = ± 90
1.0 Ω - 26.5 Ω = ± 50
26.51 Ω and 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 - 0.3 Ω = ± 150
0.31 Ω - 0.99 Ω = ± 90
1.0 Ω - 9.9 Ω = ± 50
10 Ω and above = ± 20
Dielectric
Withstanding Voltage
VAC > 500 > 500 > 500 > 500 > 500
Insulation Resistance
Ω> 109> 109> 109> 109> 109
Operating
Temperature Range
°C - 65/+ 175 - 65/+ 175 - 65/+ 275 - 65/+ 175 - 65/+ 275
Maximum Working
Voltage
V(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
Weight/1000 pieces
(typical)
g 90 165 165 760 760/1675
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: WSC2515R7000FEA (preferred part numbering format)
WSC2 5 1 5R70 00
FEA
Historical Part Number example: WSC2515 0.7 Ω 1 %R86 (will continue to be accepted)
WSC2515 0.7 Ω 1 %R86
HISTORICAL MODEL RESISTANCE VALUE TOLERANCE PACKAGING
CODE
VALUE
R = decimal
K = thousand
54R15 = 54.15 Ω
1K500 = 1.5 kΩ
SPECIAL
(Dash Number)
(up to 2 digits)
From 1-99 as
applicable
PACKAGING
EA = Lead (Pb)-free, tape/reel
EK = Lead (Pb)-free, bulk
TA = Tin/Lead, Tape/reel (R86)
BA = Tin/Lead, bulk (B43)
GLOBAL MODEL
WSC
WSN
SIZE
01/2
0001
2515
0002
4527
6927
TOLERANCE
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 %