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)
Compliant to RoHS directive 2002/95/EC
STANDARD ELECTRICAL SPECIFICATIONS
POWER RATING
P
70 °C
TOLERANCE
GLOBAL
HISTORICAL
SIZE
RESISTANCE RANGE
ENCAPSULATION
MODEL
MODEL
INCH
±%
Ω
W
WSC01/2
WSC-1/2
2012
0.5
0.5, 1, 5
0.1 to 4.99
Epoxy
WSC0001
WSC-1
2515
1.0
0.5, 1, 5
0.1 to 2.77K
Thermoplastic
(2)
WSC2515
WSC2515
2515
1.0
0.5, 1, 5
(1)
0.1 to 2.5K
Thermoplastic
WSC0002
WSC-2
4527
2.0
0.5, 1, 5
0.1 to 4.92K
Thermoplastic
(2)
WSC4527
WSC4527
4527
2.0
0.5, 1, 5
0.1 to 4.92K
Thermoplastic
WSC6927
WSC6927
6927
3.0
0.5, 1, 5
0.1 to 8K
Thermoplastic
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
(1)
0.1 % and 0.25 % is available on the WSC2515 for 0.499
Ω
to 2.5 kΩ range
(2)
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
Temperature
Coefficient
Dielectric Withstanding
Voltage
Insulation Resistance
Operating Temperature
Range
Maximum Working
Voltage
Weight/1000 pieces
(typical)
WSC2515
WSC0002
0.1
Ω
to 0.3
Ω
= ± 150
0.1
Ω
to 0.99
Ω
= ± 90
0.1
Ω
to 0.99
Ω
= ± 90
0.1
Ω
to 0.99
Ω
= ± 90
0.31
Ω
to 0.99
Ω
= ± 90
1.0
Ω
to 9.9
Ω
= ± 50
ppm/°C 1.0
Ω
to 4.99
Ω
= ± 50 1.0
Ω
to 26.5
Ω
= ± 50
1.0
Ω
to 26.5
Ω
= ± 50
26.51
Ω
and above = ± 20
10.0
Ω
and above = ± 20
26.51
Ω
and above = ± 20
V
AC
Ω
°C
V
g
> 500
> 10
9
- 65 to + 175
(P x
R)
1/2
90
> 500
> 10
9
- 65 to + 275
(P x
R)
1/2
165
> 500
> 10
9
- 65 to + 275
(P x
R)
1/2
165
> 500
> 10
9
- 65 to + 275
(P x
R)
1/2
760
UNIT
WSC01/2
WSC0001
WSC4527/WSC6927
0.1
Ω
to 0.3
Ω
= ± 150
0.31
Ω
to 0.99
Ω
= ± 90
1.0
Ω
to 9.9
Ω
= ± 50
10
Ω
and above = ± 20
> 500
> 10
9
- 65 to + 275
(P x
R)
1/2
760/1675
GLOBAL PART NUMBER INFORMATION
Global Part Numbering example: WSC2515R7000FEA (preferred part numbering format)
W
S
C
2
SIZE
01/2
0001
2515
0002
4527
6927
5
1
5
VALUE
R
7
0
0
0
F
E
A
SPECIAL
(Dash number)
(Up to 2 digits)
From
1 to 99
as applicable
GLOBAL MODEL
WSC
WSN
TOLERANCE
B
= ± 0.1 %
(3)
C
= ± 0.25 %
(3)
D
= ± 0.5 %
F
= ± 1.0 %
G
= ± 2.0 %
H
= ± 3.0 %
J
= ± 5.0 %
K
= ± 10 %
PACKAGING
EA
= Lead (Pb)-free, tape/reel
EK
= Lead (Pb)-free, bulk
TA
= Tin/lead, tape/reel (R86)
BA
= Tin/lead, bulk (B43)
R
= Decimal
K
= Thousand
R7000
= 0.70
Ω
1K500
= 1.5 kΩ
Historical Part Number example: WSC-1 0.7
Ω
1 % R86 (will continue to be accepted, but will be supplied as WSC0001R7000FTA
WSC-1
HISTORICAL MODEL
(3)
0.7
Ω
RESISTANCE VALUE
1%
TOLERANCE
R86
PACKAGING
Note
WSC2515 only
* Pb containing terminations are not RoHS compliant, exemptions may apply
For technical questions, contact:
ww2aresistors@vishay.com
Document Number: 30102
Revision: 28-Jan-10
www.vishay.com
310
WSC, WSN
Wirewound Resistors,
Precision Power, Surface Mount
DIMENSIONS
in inches (millimeters)
W
H
Vishay Dale
l
W1
a
T
L
b
MODEL
WSC01/2
WSC0001
WSC2515
WSC0002
WSC4527
WSC6927
Temperature Rise in °C
200
L
0.200 ± 0.020
[5.08 ± 0.508]
0.250 ± 0.020
[6.35 ± 0.508]
0.250 ± 0.020
[6.35 ± 0.508]
0.445 ± 0.032
[11.30 ± 0.813]
0.455 ± 0.020
[11.56 ± 0.508]
0.690 ± 0.032
[17.53 ± 0.813]
H
0.096 ± 0.015
[2.44 ± 0.381]
0.110 ± 0.015
[2.79 ± 0.381]
0.110 ± 0.015
[2.79 ± 0.381]
0.162 ± 0.015
[4.11 ± 0.381]
0.167 ± 0.010
[4.24 ± 0.254]
0.280 ± 0.015
[7.11 ± 0.381]
DIMENSIONS
T
0.040 ± 0.010
[1.02 ± 0.254]
0.045 ± 0.010
[1.14 ± 0.254]
0.045 ± 0.010
[1.14 ± 0.254]
0.100 ± 0.010
[2.54 ± 0.254]
0.100 ± 0.010
[2.54 ± 0.254]
0.100 ± 0.010
[2.54 ± 0.254]
W
0.125 ± 0.005
[3.18 ± 0.127]
0.150 ± 0.005
[3.81 ± 0.127]
0.150 ± 0.005
[3.81 ± 0.127]
0.275 ± 0.005
[6.98 ± 0.127]
0.275 ± 0.005
[6.98 ± 0.127]
0.275 ± 0.005
[6.98 ± 0.127]
Rated Power in
%
W
1
0.050 ± 0.010
[1.27 ± 0.254]
0.098 ± 0.005
[2.49 ± 0.127]
0.098 ± 0.005
[2.49 ± 0.127]
0.215 ± 0.005
[5.46 ± 0.127]
0.215 ± 0.005
[5.46 ± 0.127]
0.215 ± 0.015
[5.46 ± 0.381]
120
100
80
60
40
SOLDER PAD DIMENSIONS
a
b
l
0.085 [2.16]
0.090 [2.29]
0.090 [2.29]
0.155 [3.94]
0.155 [3.94]
0.155 [3.94]
0.070 [1.78]
0.115 [2.92]
0.115 [2.92]
0.230 [5.84]
0.230 [5.84]
0.235 [5.97]
0.080 [2.03]
0.120 [3.05]
0.120 [3.05]
0.205 [5.21]
0.205 [5.21]
0.470 [11.94]
150
WSC01/2
100
WSC0001
WSC2515
WSC0002
WSC4527
WSC6927
WSC0001
(1)
WSC0002
(1)
WSC2515
WSC4527
WSC6927
50
20
0
0
- 65
WSC01/2
0
0.5
1.0
1.5
2.0
2.5
3.0
- 25
25
75
70
125
175
225
275
Temperature Rise
Power in W
Derating
Ambient Temperature in °C
Note
(1)
As of 1/1/2010, WSC0001 and WSC0002 will be molded with thermoplastic and have the higher 275 °C temperature derating
PERFORMANCE
TEST
Thermal Shock
Short Time Overload
Low Temperature Storage
High Temperature Exposure
Bias Humidity
Mechanical Shock
Vibration
Load Life
Resistance to Solder Heat
CONDITIONS OF TEST
- 55 °C to + 150 °C, 1000 cycles, 15 min at each extreme
5 x rated power for 5 s
- 65 °C for 24 h
1000 h at + 275 °C (+ 175 °C for WSC01/2)
+ 85 °C, 85 % RH, 10 % Bias, 1000 h
100 g’s for 11 ms, 5 pulses
Frequency varied 10 Hz to 500 Hz in 1 min, 3 directions, 9 h
1000 h at rated power, + 70 °C, 1.5 h “ON”, 0.5 h “OFF”
+ 260 °C solder, 10 s to 12 s dwell, 25 mm/s emergence
TEST LIMITS
± (0.5 % + 0.05
Ω)
Δ
R
± (0.2 % + 0.05
Ω)
Δ
R
± (0.2 % + 0.05
Ω)
Δ
R
± (0.5 % + 0.05
Ω)
Δ
R
± (0.2 % + 0.05
Ω)
Δ
R
± (0.1 % + 0.05
Ω)
Δ
R
± (0.1 % + 0.05
Ω)
Δ
R
± (1.0 % + 0.05
Ω)
Δ
R
± (0.5 % + 0.05
Ω)
Δ
R
PACKAGING
TAPE WIDTH
WSC01/2
12 mm/embossed plastic
WSC0001/WSC2515
16 mm/embossed plastic
WSC0002/WSC4527
24 mm/embossed plastic
WSC6927
32 mm/embossed plastic
Note
• Embossed Carrier Tape per EIA-481-1, 2, 3
Document Number: 30102
Revision: 28-Jan-10
MODEL
REEL
DIAMETER
330 mm/13"
330 mm/13"
330 mm/13"
330 mm/13”
PIECES/REEL
2000
2000
1200
725
CODE
EA/TA
EA/TA
EA/TA
EA/TA
For technical questions, contact:
ww2aresistors@vishay.com
www.vishay.com
311
Legal Disclaimer Notice
Vishay
Disclaimer
All product specifications and data are subject to change without notice.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this
document or by any conduct of Vishay.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
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applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
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Product names and markings noted herein may be trademarks of their respective owners.
Document Number: 91000
Revision: 18-Jul-08
www.vishay.com
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