Document Number: 30102 For technical questions, contact: ww2aresistors@vishay.com www.vishay.com
Revision: 17-Feb-11 1
Wirewound Resistors,
Precision Power, Surface Mount
WSC, WSN
Vishay Dale
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.
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
Note
(4) WSC2515 only
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
HISTORICAL
MODEL
SIZE
POWER RATING P70 °C
W
RESISTANCE RANGE
TOLERANCE
± %
WEIGHT (typical)
g/1000 pieces
ENCAPSULATION
WSC01/2 WSC-1/2 2012 0.5 0.1 to 4.99
0.5, 1, 5
90 Epoxy
WSC0001 WSC-1 2515 1 0.1 to 2.77K
0.5, 1, 5
165 Thermoplastic (3)
WSC2515 WSC2515 2515 1 0.1 to 2.5K
0.1, 0.25, 0.5, 1, 5
(2)
165 Thermoplastic
WSC0002 WSC-2 4527 2 0.1 to 4.92K
0.5, 1, 5
760 Thermoplastic (3)
WSC4527 WSC4527 4527 2 0.1 to 4.92K
0.5, 1, 5
760 Thermoplastic
WSC6927 WSC6927 6927 3 0.1 to 8K
0.5, 1, 5
1675 Thermoplastic
TECHNICAL SPECIFICATIONS
PARAMETER UNIT WSC01/2 WSC0001 WSC2515 WSC0002
WSC4527/WSC6927
Temperature
Coefficient ppm/°C
± 50 = 1.0
to 4.99
± 90 = 0.1
to 0.99
± 20 = 26.51
and above;
± 50 = 1.0
to 26.5
;
± 90 = 0.1
to 0.99
± 20 = 26.51
and above;
± 50 = 1.0
to 26.5
;
± 90 = 0.31
to 0.99
± 150 = 0.1
to 0.3
± 20 = 10.0
and above;
± 50 = 1.0
to 9.9
;
± 90 = 0.1
to 0.99
± 20 = 10
and above;
± 50 = 1.0
to 9.9
;
± 90 = 0.31
to 0.99
± 150 = 0.1
to 0.3
Dielectric
Withstanding Voltage V
AC
> 500
Insulation Resistance
> 10
9
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
GLOBAL MODEL SIZE VALUE TOLERANCE PACKAGING SPECIAL
WSC
WSN 01/2
0001
2515
0002
4527
6927
R = Decimal
K = Thousand
R7000 = 0.70
1K500 = 1.5 k
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
Historical Part Numbering example: WSC-1 0.7 1 % R86
WSC-1 0.7 1 % R86
HISTORICAL MODEL RESISTANCE VALUE TOLERANCE PACKAGING
* Pb containing terminations are not RoHS compliant, exemptions may apply
** Please see document “Vishay Material Category Policy”: www.vishay.com/doc?99902
2515R7000FEASCW
www.vishay.com For technical questions, contact: ww2aresistors@vishay.com Document Number: 30102
2Revision: 17-Feb-11
WSC, WSN
Vishay Dale Wirewound Resistors,
Precision Power, Surface Mount
DIMENSIONS in inches (millimeters)
TEMPERATURE RISE DERATING
Note
(1) As of 1/1/2010, WSC0001 and WSC0002 will be molded with thermoplastic and have the higher 275 °C temperature derating.
Note
• Embossed Carrier Tape per EIA-481.
GLOBAL
MODEL
DIMENSIONS SOLDER PAD DIMENSIONS
L H T W W1AB L
WSC01/2 0.200 ± 0.020
(5.08 ± 0.508)
0.096 ± 0.015
(2.44 ± 0.381)
0.040 ± 0.010
(1.02 ± 0.254)
0.125 ± 0.005
(3.18 ± 0.127)
0.050 ± 0.010
(1.27 ± 0.254) 0.085 (2.16) 0.070 (1.78) 0.080 (2.03)
WSC0001 0.250 ± 0.020
(6.35 ± 0.508)
0.110 ± 0.015
(2.79 ± 0.381)
0.045 ± 0.010
(1.14 ± 0.254)
0.150 ± 0.005
(3.81 ± 0.127)
0.098 ± 0.005
(2.49 ± 0.127) 0.090 (2.29) 0.115 (2.92) 0.115 (2.92)
WSC2515 0.250 ± 0.020
(6.35 ± 0.508)
0.110 ± 0.015
(2.79 ± 0.381)
0.045 ± 0.010
(1.14 ± 0.254)
0.150 ± 0.005
(3.81 ± 0.127)
0.098 ± 0.005
(2.49 ± 0.127) 0.090 (2.29) 0.115 (2.92) 0.120 (3.05)
WSC0002 0.455 ± 0.020
(11.56 ± 0.508)
0.167 ± 0.010
(4.24 ± 0.254)
0.100 ± 0.010
(2.54 ± 0.254)
0.275 ± 0.005
(6.98 ± 0.127)
0.215 ± 0.005
(5.46 ± 0.127) 0.155 (3.94) 0.230 (5.84) 0.205 (5.21)
WSC4527 0.455 ± 0.020
(11.56 ± 0.508)
0.167 ± 0.010
(4.24 ± 0.254)
0.100 ± 0.010
(2.54 ± 0.254)
0.275 ± 0.005
(6.98 ± 0.127)
0.215 ± 0.005
(5.46 ± 0.127) 0.155 (3.94) 0.230 (5.84) 0.205 (5.21)
WSC6927 0.690 ± 0.032
(17.53 ± 0.813)
0.280 ± 0.015
(7.11 ± 0.381)
0.100 ± 0.010
(2.54 ± 0.254)
0.275 ± 0.005
(6.98 ± 0.127)
0.215 ± 0.015
(5.46 ± 0.381) 0.155 (3.94) 0.235 (5.97) 0.470 (11.94)
W
L
T
W1
H
l
a
b
0 0.5 1.0 1.5 2.0 2.5 3.0
Power in W
200
150
100
50
0
WSC0001
WSC2515
WSC01/2
WSC6927
WSC0002
WSC4527
Temperature Rise in °C
- 65 - 25 25 75 125 175 225 275
Ambient Temperature in °C
120
100
80
60
40
20
0
70
WSC01/2
Rated Power in %
WSC0001 (1)
WSC0002 (1)
WSC2515
WSC4527
WSC6927
PERFORMANCE
TEST CONDITIONS OF TEST TEST LIMITS
Thermal Shock - 55 °C to + 150 °C, 1000 cycles, 15 min at each extreme ± (0.5 % + 0.05 ) R
Short Time Overload 5 x rated power for 5 s ± (0.2 % + 0.05 ) R
Low Temperature Storage - 65 °C for 24 h ± (0.2 % + 0.05 ) R
High Temperature Exposure 1000 h at + 275 °C (+ 175 °C for WSC01/2) ± (0.5 % + 0.05) R
Bias Humidity + 85 °C, 85 % RH, 10 % bias, 1000 h ± (0.2 % + 0.05 ) R
Mechanical Shock 100 g’s for 11 ms, 5 pulses ± (0.1 % + 0.05 ) R
Vibration Frequency varied 10 Hz to 500 Hz in 1 min, 3 directions, 9 h ± (0.1 % + 0.05 ) R
Load Life 1000 h at rated power, + 70 °C, 1.5 h “ON”, 0.5 h “OFF” ± (1.0 % + 0.05 ) R
Resistance to Solder Heat + 260 °C solder, 10 s to 12 s dwell, 25 mm/s emergence ± (0.5 % + 0.05) R
PACKAGING
MODEL REEL
TAPE WIDTH DIAMETER PIECES/REEL CODE
WSC01/2 12 mm/embossed plastic 330 mm/13" 2000 EA/TA
WSC0001/WSC2515 16 mm/embossed plastic 330 mm/13" 2000 EA/TA
WSC0002/WSC4527 24 mm/embossed plastic 330 mm/13" 1200 EA/TA
WSC6927 32 mm/embossed plastic 330 mm/13” 725 EA/TA
Legal Disclaimer Notice
www.vishay.com Vishay
Revision: 12-Mar-12 1Document Number: 91000
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