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Vishay Intertechnology Electronic Components Datasheet

WK2 Datasheet

High Power Metal Oxide Leaded Resistors

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www.vishay.com
WK2, WR4, WR5, WK8
Vishay Draloric
High Pulse Load, High Power Metal Oxide Leaded Resistors
FEATURES
• High power pulse withstanding capability
(up to 1 kW)
• High power dissipation in small size
(1 W / 0207 size to 4 W / 0922 size)
• WK2 and WR4 are AEC-Q200 qualified
• High temperature (up to 200 °C), heat resistant
encapsulation
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
APPLICATIONS
• Automotive electronics
• Industrial electronics
• Power supplies
TECHNICAL SPECIFICATIONS
DESCRIPTION
WK2
WR4
WR5
WK8
Imperial size
0207
0414
0617
0922
Resistance range
0.22 to 1 M
0.33 to 1 M
0.22 to 560 k
0.22 to 100 k
Resistance tolerance
± 1 %, ± 2 %, ± 5 %
± 2 %, ± 5 %
± 2 %, ± 5 %
± 2 %, ± 5 %
Temperature coefficient
± 50 ppm/K,
± 100 ppm/K,
± 200 ppm/K
± 200 ppm/K
± 200 ppm/K
± 200 ppm/K
Rated dissipation, P70
Operating voltage, Umax. AC/DC (1)
Operating temperature range (2)
1W
500 V
2W 3W
500 V
750 V
-55 °C to +200 °C
4W
750 V
Thermal resistance (Rth)
Insulation voltage:
140 K/W
100 K/W
70 K/W
60 K/W
Failure rate
1 min; Uins
> 500 V
< 1 x 10-8/h
Max. resistance change for resistance
range, R max., after: load (1000 h, P70)
± (5 % R + 0.1 )
± (5 % R + 0.1 )
± (5 % R + 0.1 )
± (2 % R + 0.1 )
Notes
(1) Rated voltage P x R .
(2) For values < 10 the upper limiting temperature is 155 °C. The power rating is correspondingly lower and can be calculated by Rth.
E.g. for WK8 - Rth is 60 K/W; to calculate power P for < 10R; Tambient = 25 °C
P = TUpper Limiting - TAmbiant/Rth = (155 - 25) / 60 = 2.16 W
AUTOMOTIVE QUALIFICATION
DESCRIPTION
Qualifications
WK2
AEC-Q200
WR4
AEC-Q200
WR5
-
WK8
-
Revision: 03-Mar-16
1 Document Number: 20128
For technical questions, contact: filmresistorsleaded@vishay.com
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


Vishay Intertechnology Electronic Components Datasheet

WK2 Datasheet

High Power Metal Oxide Leaded Resistors

No Preview Available !

www.vishay.com
WK2, WR4, WR5, WK8
Vishay Draloric
TEMPERATURE COEFFICIENT AND RESISTANCE RANGE
TYPE / SIZE
TCR
TOLERANCE
WK2
WR4
± 50 ppm/K
± 100 ppm/K
± 100 ppm/K
± 200 ppm/K
± 200 ppm/K
± 200 ppm/K
±1%
±2%
±5%
±5%
±2%
± 5%
WR5
WK8
± 200 ppm/K
± 200 ppm/K
± 200 ppm/K
± 200 ppm/K
±2%
±5%
±2%
±5%
PART NUMBER AND PRODUCT DESCRIPTION
Part Number: WK202070C1001FD500
WK 2 0 2 0 7 0 C 1 0
RESISTANCE
4.7 to 1 M
4.7 to 1 M
4.7 to 1 M
0.22 to 1 M
1 to 1 M
0.33 to 1 M
1 to 100 k
0.22 to 560 k
1 to 68 k
0.22 to 100 k
0 1FD
E-SERIES
E24; E96
E24; E48
E24
E24
E24; E96
E24
E24; E96
E24
E24; E48
E24
500
TYPE / SIZE
WK2 = WK20207
WR4 = WR40414
WR5 = WR50617
WK8 = WK80922
VARIANT
0 = neutral
TCR
0 = standard
(for WK8 only)
C = ± 50 ppm/K
B = ± 100 ppm/K
A = ± 200 ppm/K
Product Description: WK2 50 1K0 1 % R5
WK2
50
RESISTANCE
3 digit value
1 digit multiplier
MULTIPLIER
7 = *10-3
8 = *10-2
9 = *10-1
0 = *100
1 = *101
2 = *102
3 = *103
4 = *104
5 = *105
6 = *106
1K0
TOLERANCE (1)
F=±1%
G=±2%
J=±5%
1%
PACKAGING
22 = A2
25 = A5
D5 = R5
5C = AC
G1 = R1
41 = A1 G73
51 = A1 G77
FE = RE G73
GP = RP
SPECIAL
00 = standard
R5
TYPE / SIZE
WK2
WR4
WR5
WK8
TCR
± 50 ppm/K
± 100 ppm/K
± 200 ppm/K
RESISTANCE VALUE
49K9 = 49.9 k
50R1 = 50.1
1K0 = 1.0 k
TOLERANCE
±1%
±2%
±5%
Note
(1) See temperature coefficient and resistance range table for selecting correct TCR and tolerance combination.
PACKAGING
A2
A5
R5
AC
R1
41
51
FE
GP
PACKAGING
TYPE / SIZE CODE
WK2
A2
A5
R5
WR4
A1
RE
WR5
A1
RP
WK8
AC
R1
QUANTITY
2000
5000
5000
1000
2500
1000
1500
500
1000
PACKAGING STYLE
Taped acc. to IEC 60286-1
fan-folded in a box
Taped acc. to IEC 60286-1
on a reel
Taped acc. to IEC 60286-1
fan-folded in a box
Taped acc.to IEC 60286-1
on a reel
Taped acc. to IEC 60286-1
fan-folded in a box
Taped acc. to IEC 60286-1
on a reel
Taped acc. to IEC 60286-1
fan-folded in a box
Taped acc.to IEC 60286-1
on a reel
WIDTH
53 mm
73 mm
77 mm
77 mm
PITCH
5 mm
5 mm
5 mm
5 mm
5 mm
10 mm
10 mm
DIMENSION
72 mm x 55 mm x 258 mm
75 mm x 114 mm x 260 mm
93 mm x 300 mm x 298 mm
95 mm x 57 mm x 260 mm
105 mm x 315 mm x 305 mm
155 mm x 110 mm x 410 mm
119 mm x 353 mm x 353 mm
120 mm x 118 mm x 412 mm
119 mm x 353 mm x 353 mm
Revision: 03-Mar-16
2 Document Number: 20128
For technical questions, contact: filmresistorsleaded@vishay.com
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


Part Number WK2
Description High Power Metal Oxide Leaded Resistors
Maker Vishay
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