WSF Datasheet

WSF
www.vishay.com
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)
• Material categorization:
for definitions of compliance please see
www.vishay.com/doc?99912
Note
* This datasheet provides information about parts that are
RoHS-compliant and / or parts that are non-RoHS-compliant. For
example, parts with lead (Pb) terminations are not RoHS-compliant.
Please see the information / tables in this datasheet for details.
Available
Available
Available
Note
(1) Flame retardance test may not be applicable to
some resistor technologies.
Available
Available
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
POWER RATING
P70 °C
W
SIZE INCH
TOLERANCE
±%
RESISTANCE
RANGE

TEMPERATURE
COEFFICIENT (4)
± ppm/°C
ENCAPSULATION
WSF2012
2012
0.5
0.5, 1, 5
5.0 to 1.43K (2)
100
Epoxy
WSF2515
2515
1.0
0.5, 1, 5
10 to 10K
100
Thermoplastic
WSF4527
4527
2.0 (3)
0.5, 1, 5
10 to 100K
100
Thermoplastic
TECHNICAL SPECIFICATIONS
PARAMETER
Dielectric withstanding voltage
UNIT
WSF2012
WSF2515
WSF4527
VAC
> 500
> 500
> 500
Insulation resistance

Operating temperature range
°C
- 65/+ 175
- 65/+ 175
- 65/+ 150
Maximum working voltage
V
(P x R)1/2
(P x R)1/2
(P x R)1/2 (3)
Weight/1000 pieces (typical)
g
90
165
760
> 109
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 k 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
0
J
K
T
A
GLOBAL MODEL
VALUE
TOLERANCE
TCR
PACKAGING
SPECIAL
WSF2012
WSF2515
WSF4527
R = Decimal
K = Thousand
100R0 = 100 
1K000 = 1 k
D = ± 0.5 %
F = ± 1.0 %
G = ± 2.0 %
H = ± 3.0 %
J = ± 5.0 %
K = ± 10 %
E = ± 25 ppm/°C
H = ± 50 ppm/°C
K = ± 100 ppm/°C
EA = Lead (Pb)-free,
tape/reel
EK = Lead (Pb)-free, bulk
TA = Tin/lead , tape/reel
(R86)
BA = Tin/lead, tape/reel,
bulk (B43)
(Dash number)
(Up to 2 digits)
From 1 to 99 as
applicable
Historical Part Numbering example: WSF2515 1.5 k 5 % 100 ppm/°C R86 (will continue to be accepted for tin/lead product only)
WSF2515
1.5 k
5%
100 ppm/°C
R86
HISTORICAL MODEL
RESISTANCE VALUE
TOLERANCE CODE
TEMPERATURE
COEFFICIENT
PACKAGING
Revision: 06-Nov-14
Document Number: 30104
1
For technical questions, contact: [email protected]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
WSF
www.vishay.com
Vishay Dale
DIMENSIONS
DIMENSIONS in inches (millimeters)
MODEL
W
H
L
H
T
W
W1
0.200 ± 0.020 0.096 ± 0.015 0.040 ± 0.010 0.125 ± 0.005 0.050 ± 0.005
WSF2012
(5.08 ± 0.508) (2.44 ± 0.381) (1.02 ± 0.254) (3.18 ± 0.127) (1.27 ± 0.127)
W
1
WSF2515
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)
WSF4527
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)
T
L
MODEL
l
a
a
b
l
WSF2012
0.085 (2.16)
0.070 (1.78)
0.080 (2.03)
WSF2515
0.090 (2.29)
0.115 (2.92)
0.120 (3.05)
WSF4527
0.155 (3.94)
0.230 (5.94)
0.205 (5.21)
200
Rated Power in %
Temperature Rise in °C
SOLDER PAD DIMENSIONS in inches (millimeters)
b
150
WSF4527
WSF2515
100 WSF2012
120
100
80
60
WSF2012
WSF2515
40
50
20
0
0
0.5
1.0
1.5
Temperature Rise
0
- 65
2.0
Power in W
WSF4527
- 25
0
25
50
Derating
75 100 125 150 175 200
Ambient Temperature in °C
70
PERFORMANCE
TEST
CONDITIONS OF TEST
TEST LIMITS
Thermal shock
-55 °C to +150 °C, 1000 cycles, 15 min at each extreme
± (1.0 % + 0.05 ) R
Short time overload
5 x rated power for 5 s
± (0.5 % + 0.05 ) R
Low temperature storage
-65 °C for 24 h
± (0.5 % + 0.05 ) R
High temperature exposure
1000 h at +175 °C (150 °C for WSF4527)
± (1.0 % + 0.05 ) R
± (0.5 % + 0.05 ) R
Bias humidity
+85 °C, 85 % RH, 10 % Bias, 1000 h
Moisture resistance
MIL-STD-202 method 106, 0 % power, 7a and 7b not required
± (0.5 % + 0.05 ) R
Mechanical shock
100 g’s for 6 ms, 5 pulses
± (0.5 % + 0.05 ) R
Vibration
Frequency varied 10 Hz to 500 Hz in one min, 3 directions, 9 h
± (0.5 % + 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
WSF2012
12 mm/embossed plastic
330 mm/13"
2000
EA/TA
WSF2515
16 mm/embossed plastic
330 mm/13"
2000
EA/TA
WSF4527
24 mm/embossed plastic
330 mm/13"
1200
EA/TA
Note
• Embossed Carrier Tape per EIA-481.
Revision: 06-Nov-14
Document Number: 30104
2
For technical questions, contact: [email protected]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
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Material Category Policy
Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as RoHS-Compliant fulfill the
definitions and restrictions defined under Directive 2011/65/EU of The European Parliament and of the Council
of June 8, 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment
(EEE) - recast, unless otherwise specified as non-compliant.
Please note that some Vishay documentation may still make reference to RoHS Directive 2002/95/EC. We confirm that
all the products identified as being compliant to Directive 2002/95/EC conform to Directive 2011/65/EU.
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requirements as per JEDEC JS709A standards. Please note that some Vishay documentation may still make reference
to the IEC 61249-2-21 definition. We confirm that all the products identified as being compliant to IEC 61249-2-21
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Revision: 02-Oct-12
1
Document Number: 91000