WSC, WSN
Vishay Dale
Wirewound Resistors,
Precision Power, Surface Mount
FEATURES
• All welded construction
• Molded encapsulation
• Wrap around terminations
• SnPb electro tin plated terminations
• Excellent stability at different environmental conditions
• High power ratings
• Superior surge capability
• Available in non-inductive styles with Aryton-Perry winding
(WSN in lieu of WSC, maximum resistance is one-half
WSC range)
STANDARD ELECTRICAL SPECIFICATIONS
MODEL
SIZE
TOLERANCE
INCH
POWER RATING
P70°C
W
RESISTANCE
RANGE
ENCAPSULATION
WSC-1/2
2012
0.5
0.5, 1, 5
0.1 - 4.99
Epoxy
WSC-1
2515
1.0
0.5, 1, 5
0.1 - 2.77k
Epoxy
WSC2515
2515
1.0
0.5, 1, 5
0.1 - 2.77k
Thermoplastic
WSC-2
4527
2.0
0.5, 1, 5
0.1 - 4.92k
Epoxy
WSC4527
4527
2.0
0.5, 1, 5
0.1 - 4.92k
Thermoplastic
WSC6927
6927
3.0
0.5, 1, 5
0.1 - 8k
Thermoplastic
±%
Ω
• Part Marking: 1/2W - DALE, Value; 1W - Model, Value, Tolerance, Date Code; 2W & 3W - DALE, Model, Value, Tolerance, Date Code.
TECHNICAL SPECIFICATIONS
PARAMETER
UNIT
WSC-1/2
ppm/˚C
0.1Ω - 0.99Ω = ± 90
1.0Ω - 4.99Ω = ± 50
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
Temperature
Coefficient
WSC-1
WSC2515
WSC-2
WSC4527/WSC6927
0.1Ω - 0.99Ω = ± 90
0.1Ω - 0.99Ω = ± 90
0.1Ω - 0.99Ω = ± 90
1.0Ω - 26.5Ω = ± 50
1.0Ω - 26.5Ω = ± 50
1.0Ω - 9.9Ω = ± 50
26.51Ω and above = ± 20 26.51Ω and above = ± 20 10.0Ω and above = ± 20
0.1Ω - 0.3Ω = ± 150
0.31Ω - 0.99Ω = ± 90
1.0Ω - 9.9Ω = ± 50
10Ω and above = ± 20
ORDERING INFORMATION
WSC2515
10Ω
1.0%
R86
MODEL
RESISTANCE
Ω
TOLERANCE
±%
PACKAGING
B43 = Bulk Pack
R86 = Tape and Reel
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For technical questions, contact ww2aresistors@vishay.com
Document Number 30102
Revision 06-Sep-01
