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 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
Note
(1)
Flame retardance test may not be applicable to
some resistor technologies.
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL HISTORICAL
POWER RATING P70 °C RESISTANCE RANGE
TOLERANCE
ꢀ
0.5, 1, 5
0.5, 1, 5
0.1, 0.25, 0.5, 1, 5 (2)
0.5, 1, 5
WEIGHT (typical)
g/1000 pieces
SIZE
ENCAPSULATION
MODEL
MODEL
WSC-1/2
WSC-1
W
0.5
1
WSC01/2
WSC0001
WSC2515
WSC0002
WSC4527
WSC6927
2012
2515
2515
4527
4527
6927
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
90
165
165
760
760
1675
Epoxy
Thermoplastic (3)
Thermoplastic
Thermoplastic (3)
Thermoplastic
Thermoplastic
WSC2515
WSC-2
1
2
WSC4527
WSC6927
2
3
0.5, 1, 5
0.5, 1, 5
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
UNIT
WSC01/2
WSC0001
WSC2515
WSC0002
WSC4527/WSC6927
20 ꢀ 26.51
and above;
to 26.5
to 0.99
to 0.3
20 ꢀ 10
and above;
to 9.9
to 0.99
to 0.3
20ꢀ26.51
and above;
20ꢀ10.0
50 ꢀ 1.0
90 ꢀ 0.1
andabove;
Temperature
Coefficient
50ꢀ1.0
90 ꢀ 0.1
to4.99
to 0.99
50 ꢀ 1.0
;
50 ꢀ 1.0
;
ppm/°C
50 ꢀ 1.0
90 ꢀ 0.1
to 26.5
to 0.99
;
to 9.9
;
90 ꢀ 0.31
90 ꢀ 0.31
to 0.99
150 ꢀ 0.1
150 ꢀ 0.1
Dielectric
VAC
> 500
> 109
Withstanding Voltage
Insulation Resistance
Operating
Temperature Range
°C
- 65 to + 175
- 65 to + 275
Maximum Working
Voltage
V
(P x R)1/2
GLOBAL PART NUMBER INFORMATION
Global Part Numbering example: WSC2515R7000FEA
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
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 %
EA ꢀ Lead (Pb)-free, tape/reel
EK ꢀ Lead (Pb)-free, bulk
TA ꢀ Tin/lead, tape/reel (R86)
BA ꢀ Tin/lead, bulk (B43)
(Dash number)
(Up to 2 digits)
From 1 to 99
as applicable
K ꢀ Thousand
R7000 ꢀ 0.70
1K500 ꢀ 1.5 k
Historical Part Numbering example: WSC-1 0.7 1 ꢀ R86
WSC-1
0.7
1 ꢀ
TOLERANCE
R86
PACKAGING
HISTORICAL MODEL
RESISTANCE VALUE
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