WSF
Vishay Dale
Metal Film Resistors, Power, Surface Mount
FEATURES
•
Molded encapsulation
•
Wraparound compliant terminations eliminate
risk of solder fillet cracking
•
Solderable terminations
•
Excellent stability at different environmental
conditions
•
High power ratings (up to 2 W)
•
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
MODEL
WSF2012
WSF2515
WSF4527
SIZE
INCH
2012
2515
4527
POWER RATING
P
70 °C
W
0.5
1.0
2.0
(3)
TOLERANCE
±%
0.5, 1, 5
0.5, 1, 5
0.5, 1, 5
RESISTANCE
RANGE
Ω
5.0 to 1.43K
(2)
10 to 10K
10 to 100K
ENCAPSULATION
Epoxy
Thermoplastic
Thermoplastic
TECHNICAL SPECIFICATIONS
PARAMETER
UNIT
WSF2012
WSF2515
WSF4527
(4)
(4)
± 100
± 100
(4)
Temperature coefficient
ppm/°C
± 100
Dielectric withstanding voltage
V
AC
> 500
> 500
> 500
9
Insulation resistance
Ω
> 10
Operating temperature range
°C
- 65/+ 175
- 65/+ 175
- 65/+ 150
1/2
1/2
Maximum working voltage
V
(P x
R)
(P x
R)
(P x
R)
1/2 (3)
Weight/1000 pieces (typical)
g
90
165
760
Notes
• Part marking: 1/2 W - DALE, value; 1 W - model, value, tolerance, date code; 2 W - DALE, model, value, tolerance, date code.
(2)
E96 values only.
(3)
Resistance values above 31.25 kΩ are limited to 250 V maximum working voltage.
(4)
± 50 ppm/°C and ± 25 ppm/°C available.
GLOBAL PART NUMBER INFORMATION
Global Part Numbering example: WSF25151K500JKTA (preferred numbering format)
W
S
F
2
5
1
5
1
K
5
0
TCR
0
J
K
T
A
SPECIAL
(Dash number)
(Up to 2 digits)
From
1 to 99
as
applicable
GLOBAL MODEL
WSF2012
WSF2515
WSF4527
VALUE
R
= Decimal
K
= Thousand
100R0
= 100
Ω
1K000
= 1 kΩ
TOLERANCE
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, tape/reel,
bulk (B43)
E
= ± 25 ppm/°C
H
= ± 50 ppm/°C
K
= ± 100 ppm/°C
Historical Part Numbering example: WSF2515 1.5 kΩ 5 % 100 ppm/°C R86 (will continue to be accepted for tin/lead product only)
WSF2515
HISTORICAL MODEL
1.5 kΩ
RESISTANCE VALUE
5%
TOLERANCE CODE
100 ppm/°C
TEMPERATURE
COEFFICIENT
R86
PACKAGING
* Pb containing terminations are not RoHS compliant, exemptions may apply
** Please see document “Vishay Material Category Policy”:
www.vishay.com/doc?99902
www.vishay.com
296
For technical questions, contact:
ww2aresistors@vishay.com
Document Number: 30104
Revision: 03-Dec-10
WSF
Metal Film Resistors, Power, Surface Mount
Vishay Dale
DIMENSIONS
MODEL
W
H
DIMENSIONS
in inches (millimeters)
L
H
T
W
W
1
0.200 ± 0.020 0.096 ± 0.015 0.040 ± 0.010 0.125 ± 0.005 0.050 ± 0.005
(5.08 ± 0.508) (2.44 ± 0.381) (1.02 ± 0.254) (3.18 ± 0.127) (1.27 ± 0.127)
0.250 ± 0.020 0.110 ± 0.015 0.045 ± 0.010 0.150 ± 0.005 0.098 ± 0.005
(6.35 ± 0.508) (2.79 ± 0.381) (1.14 ± 0.254) (3.81 ± 0.127) (2.49 ± 0.127)
0.455 ± 0.020 0.167 ± 0.010 0.100 ± 0.010 0.275 ± 0.005 0.215 ± 0.005
(11.56 ± 0.508) (4.24 ± 0.254) (2.54 ± 0.254) (6.98 ± 0.127) (5.46 ± 0.127)
WSF2012
WSF2515
W
1
WSF4527
T
L
l
b
MODEL
WSF2012
SOLDER PAD DIMENSIONS
in inches (millimeters)
a
0.085 (2.16)
0.090 (2.29)
0.155 (3.94)
b
0.070 (1.78)
0.115 (2.92)
0.230 (5.94)
l
0.080 (2.03)
0.120 (3.05)
0.205 (5.21)
a
WSF2515
WSF4527
Temperature Rise in °C
Rated Power in
%
200
120
100
80
60
40
WSF2012
WSF2515
150
WSF2515
100
WSF2012
WSF4527
50
20
0
0
0.5
1.0
1.5
2.0
Power in W
0
- 65
- 25
0
25
50
WSF4527
75 100 125 150 175 200
Ambient Temperature in
°C
70
Temperature Rise
PERFORMANCE
TEST
Thermal shock
Short time overload
Low temperature storage
High temperature exposure
Bias humidity
Moisture resistance
Mechanical shock
Vibration
Load life
Resistance to solder heat
Derating
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 + 175 °C (150 °C for WSF4527)
+ 85 °C, 85 % RH, 10 % Bias, 1000 h
MIL-STD-202 method 106, 0 % power, 7a and 7b not required
100
g’s
for 11 ms, 5 pulses
Frequency varied 10 Hz to 500 Hz in one 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
± (1.0 % + 0.05
Ω) ΔR
± (0.5 % + 0.05
Ω) ΔR
± (0.5 % + 0.05
Ω) ΔR
± (1.0 % + 0.05
Ω) ΔR
± (0.5 % + 0.05
Ω) ΔR
± (0.5 % + 0.05
Ω) ΔR
± (0.5 % + 0.05
Ω) ΔR
± (0.5 % + 0.05
Ω) ΔR
± (1.0 % + 0.05
Ω) ΔR
± (0.5 % + 0.05
Ω) ΔR
PACKAGING
MODEL
WSF2012
WSF2515
WSF4527
REEL
TAPE WIDTH
12 mm/embossed plastic
16 mm/embossed plastic
24 mm/embossed plastic
DIAMETER
330 mm/13"
330 mm/13"
330 mm/13"
PIECES/REEL
2000
2000
1200
CODE
EA/TA
EA/TA
EA/TA
Note
• Embossed Carrier Tape per EIA-481.
Document Number: 30104
Revision: 03-Dec-10
For technical questions, contact:
ww2aresistors@vishay.com
www.vishay.com
297
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Vishay
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
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 in any datasheet or in any other
disclosure relating to any product.
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
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Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of typical
requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements
about the suitability of products for a particular application. It is the customer’s responsibility to validate that a particular
product with the properties described in the product specification is suitable for use in a particular application. Parameters
provided in datasheets and/or specifications may vary in different applications and performance may vary over time. All
operating parameters, including typical parameters, must be validated for each customer application by the customer’s
technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,
including but not limited to the warranty expressed therein.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
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Document Number: 91000
Revision: 11-Mar-11
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