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WSF452720.5OHM1%50PPMEK

Description
Fixed Resistor, Metal Film, 2W, 20.5ohm, 1% +/-Tol, -50,50ppm/Cel, 4627,
CategoryPassive components    The resistor   
File Size99KB,3 Pages
ManufacturerVishay
Websitehttp://www.vishay.com
Environmental Compliance
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WSF452720.5OHM1%50PPMEK Overview

Fixed Resistor, Metal Film, 2W, 20.5ohm, 1% +/-Tol, -50,50ppm/Cel, 4627,

WSF452720.5OHM1%50PPMEK Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
Objectid913267900
Reach Compliance Codecompliant
ECCN codeEAR99
structureMolded Encapsulation
JESD-609 codee3
Number of terminals2
Maximum operating temperature150 °C
Minimum operating temperature-65 °C
Package height4.24 mm
Package length11.56 mm
Package formSMT
Package width6.98 mm
method of packingBulk
Rated power dissipation(P)2 W
resistance20.5 Ω
Resistor typeFIXED RESISTOR
seriesWSF
size code4627
technologyMETAL FILM
Temperature Coefficient50 ppm/°C
Terminal surfaceMatte Tin (Sn) - with Nickel (Ni) barrier
Tolerance1%
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)
Pb-free
Available
e3
RoHS*
COMPLIANT
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
2)
TOLERANCE
±%
0.5, 1, 5
0.5, 1, 5
0.5, 1, 5
RESISTANCE
RANGE
Ω
5.0 - 1.43K
1)
10 - 10K
10 - 100K
ENCAPSULATION
Epoxy
Thermoplastic
Thermoplastic
Notes
1) E96 values only
2) Resistance values above 31 250
Ω
are limited to 250 maximum working voltage
• Part Marking: 1/2 W - DALE, Value; 1 W - Model, Value, Tolerance, Date Code; 2 W - DALE, Model, Value, Tolerance, Date Code.
TECHNICAL SPECIFICATIONS
PARAMETER
Temperature Coefficient
Dielectric Withstanding Voltage
Insulation Resistance
Operating Temperature Range
Maximum Working Voltage
Weight/1000 pieces (typical)
UNIT
ppm/°C
V
AC
Ω
°C
V
g
- 65/+ 175
(P x
R)
1/2
90
WSF2012
± 100
3)
WSF2515
± 100
> 10
9
- 65/+ 175
(P x
R)
1/2
165
3)
WSF4527
± 100
3)
> 500
- 65/+ 150
(P x
R)
1/2 4)
760
> 500
> 500
Notes
3) ± 50 ppm/°C and ± 25 ppm/°C available
4) Resistance values above 31 250
Ω
are limited to 250 V maximum working voltage
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: WSF25151K500JKTA (preferred part numbering format)
W
GLOBAL MODEL
WSF2012
WSF2515
WSF4527
S
F
2
5
1
5
1
K
5
0
0
J
K
T
A
SPECIAL
(Dash
Number)
(up to 2 digits)
From
1 - 99
as
applicable
VALUE
R
= decimal
K
= thousand
54R15
= 54.15
Ω
1K325
= 1.325 kΩ
TOLERANCE
D
= ± 0.5 %
F
= ± 1.0 %
G
= ± 2.0 %
H
= ± 3.0 %
J
= ± 5.0 %
K
= ± 10 %
TCR
E
= 25 ppm/°C
H
= 50 ppm/°C
K
= 100 ppm/°C
PACKAGING
EA
= Lead (Pb)-free, tape/reel
EK
= Lead (Pb)-free,
bulk
TA
= Tin/Lead, tape/reel (R86)
BA
= Tin/Lead,
bulk
(B43)
Historical Part Number example: WSF2515 1.5 kΩ 5
%
100 ppm/°C R86 (will continue to be accepted)
WSF2515
HISTORICAL MODEL
1.5 k
Ω
RESISTANCE
VALUE
5
%
TOLERANCE
CODE
100 ppm/°C
TEMPERATURE
COEFFICIENT
R86
PACKAGING
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 30104
Revision: 02-Aug-07
For technical questions, contact: ww2aresistors@vishay.com
www.vishay.com
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