WK80922009098GG100 - Vishay Presicion Group

www.vishay.com For technical questions, contact: filmresistorsleaded@vishay.com Document Number: 20128

176 Revision: 26-May-10

WK/WR

Vishay Draloric

High Power Metal Oxide Leaded Resistors

FEATURES

•Rugged metal oxide film

•High power dissipation in small size (1 W/0207

size to 4 W/0922 size)

•High temperature coating (up to 200 °C),

non-flammable

•Lead (Pb)-free solder contacts

•Pure tin plating provides compatibility with lead (Pb)-free

and lead containing soldering processes

•Compliant to RoHS directive 2002/95/EC

Notes

• Coating: Green

• Marking: WK2 and WR4 have color code band marking. TCR band will be given to only WK2, 100 ppm, 5 %. WR5 and WK8 are printed marked.

Notes

(1) Rated Voltage

(2) For values < 10R the upper limiting temperature is 155 °C. The power rating is correspondingly lower and can be calculated by Rth.

STANDARD ELECTRICAL SPECIFICATIONS

MODEL SIZE

RATED DISSIPATION

P70

LIMITING ELEMENT

VOLTAGE Umax.

V≅

TEMPERATURE

COEFFICIENT

ppm/K

TOLERANCE

RESISTANCE

RANGE E-SERIES

WK2 0207 1.0 500 ± 50 ± 1 4.7 Ω to 1 MΩE24, E96

WK2 0207 1.0 500 ± 100 ± 2

± 5

4.7 Ω to 1 MΩ

E24, E48

E24

WK2 0207 1.0 500 ± 200 ± 5 0.22 Ω to 1 MΩE24

WR4 0414 2.0 500 ± 200 ± 2

± 5

1 Ω to 1 MΩ

0.33 Ω to 1 MΩ

E24, E48

E24

WR5 0617 3.0 750 ± 200 ± 2

± 5

1 Ω to 100 kΩ

0.22 Ω to 560 kΩ

E24, E48

E24

WK8 0922 4.0 750 ± 200 ± 2

± 5

1 Ω to 68 kΩ

0.22 Ω to 100 kΩ

E24, E48

E24

TECHNICAL SPECIFICATIONS

PARAMETER UNIT WK2 WR4 WR5 WK8

Rated Dissipation, P70 W 1.0 2.0 3.0 4.0

Limiting Element Voltage, Umax.(1) V≅500 500 750 750

Insulation Voltage, Uins (1 Min) V > 500 > 500 > 500 > 500

Thermal Resistance, Rth K/W ≤ 140 ≤ 100 ≤ 70 ≤ 60

Insulation Resistance Ω> 109

Category Temperature Range (2) °C - 55 to + 200

Failure Rate 10-8/h < 1

Weight g 0.2 0.7 1.5 3.5

P x R

www.vishay.com For technical questions, contact: filmresistorsleaded@vishay.com Document Number: 20128

177 Revision: 26-May-10

WK/WR

High Power Metal Oxide Leaded Resistors Vishay Draloric

Notes

(1) Please refer to table PACKAGING

• The PART NUMBER shown above is to facilitate the unified part numbering system for ordering products

PART NUMBER AND PRODUCT DESCRIPTION WK2-SERIES

PART NUMBER: WK202070C1001FD500

MODEL/SIZE VARIANT TCR VALUE TOLERANCE PACKAGING (1) SPECIAL

WK20207 0 = Neutral C = ± 50 ppm/K

B = ± 100 ppm/K

A = ± 200 ppm/K

3 digit value

1 digit multiplier

MULTIPLIER

F = ± 1 %

G = ± 2 %

J = ± 5 %

22 = A2

25 = A5

D5 = R5

Up to 2 digits

00 = Standard

7 = *10-3

8 = *10-2

9 = *10-1

0 = *100

1 = *101

2 = *102

3 = *103

4 = *104

5 = *105

6 = *106

PRODUCT DESCRIPTION: WK2 50 1K0 1 % R5

WK2 50 1K0 1 % R5

MODEL TCR RESISTANCE VALUE TOLERANCE PACKAGING (1)

WK2 ± 50 ppm/K

± 100 ppm/K

± 200 ppm/K

49K9 = 49.9 kΩ

50R1 = 50.1 Ω

1K0 = 1.0 kΩ

± 1 %

± 2 %

± 5 %

PART NUMBER AND PRODUCT DESCRIPTION WK8-SERIES

PART NUMBER: WK80922001000J5C00

MODEL/SIZE VARIANT TCR VALUE TOLERANCE PACKAGING (1) SPECIAL

WK80922 0 = Neutral 0 = Standard 3 digit value

1 digit multiplier

MULTIPLIER

G = ± 2 %

J = ± 5 %

5C = AC

G1 = R1

Up to 2 digits

00 = Standard

7 = *10-3

8 = *10-2

9 = *10-1

0 = *100

1 = *101

2 = *102

3 = *103

4 = *104

5 = *105

PRODUCT DESCRIPTION: WK8 100R 5 % AC

WK8 100R 5 % AC

MODEL TCR TOLERANCE PACKAGING (1)

WK8 100R = 100 Ω

47K = 47 kΩ

± 2 %

± 5 %

PART NUMBER AND PRODUCT DESCRIPTION WR-SERIES

PART NUMBER: WR404140A1001GFE00

MODEL/SIZE VARIANT TCR VALUE TOLERANCE PACKAGING (1) SPECIAL

WR40414

WR50617

0 = Neutral A = ± 200 ppm/K 3 digit value

1 digit multiplier

MULTIPLIER

G = ± 2 %

J = ± 5 %

41 = A1 G73

51 = A1 G77

FE = RE G73

GP = RP

Up to 2 digits

00 = Standard

7 = *10-3

8 = *10-2

9 = *10-1

0 = *100

1 = *101

2 = *102

3 = *103

4 = *104

5 = *105

6 = *106

PRODUCT DESCRIPTION: WR4 1K0 2 % RE

WR4 1K0 2 % RE

MODEL RESISTANCE VALUE TOLERANCE PACKAGING (1)

WR4

WR5

1K0 = 1.0 kΩ

51R0 = 51.0 Ω

± 2 %

± 5 %

A1 (G73)

A1 (G77)

RE (G73)

02 10 1FD0K2 50W700 0C

09 10 0J50K8 C0W202 00

04 10 1GF0R4 E0W401 0A

www.vishay.com For technical questions, contact: filmresistorsleaded@vishay.com Document Number: 20128

178 Revision: 26-May-10

WK/WR

Vishay Draloric High Power Metal Oxide Leaded Resistors

DIMENSIONS

Notes

(1) 9 mm for WR5/WK8

• Taping in acc. with IEC 60286-1

• D and L measured in acc. with IEC 60294

• d according to IEC 60301

PACKAGING

MODEL

REEL BOX

PIECES/REEL CODE MIN. ORDER QTY

PACKAGING UNITS PIECES/BOX CODE MIN. ORDER QTY

PACKAGING UNITS

WK2 5000 R5 1 5000

2000

WR4 2500 RE 2 1000 A1 (G73) 2

WR5 1500 RP 2 1000 A1 (G77) 2

WK8 1000 R1 2 500 AC 2

6 mm (1)

MODEL

DIMENSIONS [in millimeters]

DLL

1 max. Bde

WK2 2.5 - 0.5 6.5 - 0.5 8.0 53 ± 1 0.6 7.5

WR4 3.9 - 0.5 10.0 - 1.6 12.0 73 ± 1 0.8 15.0

WR5 6.0 - 0.5 16.5 - 1.5 20.0 77 ± 1 0.8 17.5

WK8 9.0 - 0.5 20.0 - 1.5 24.0 77 ± 1 0.8 22.5

120

100

- 55 0 40 80 120 160 200 240 280 320 360

70 AMBIENT TEMPERATURE IN °C

DERATING

REWOP

300

250

200

150

100

0 1.0 2.0 3.0 4.0 5.0

POWER IN W

TEMPERATURE RISE

I ESIR

WR4

WK2

WR5

WK8

WR 5

WR 4

WK 8

WK 2

WR 5

WR 4

WK 8

WK 2

10-5 10-4

100

10-1 10010

101

10-1

10-2 100

10-3

102

10-1

10-5 10-4 10-3 10-2

103

]W[

GNITAR REWOP

]

R REWOP

PULSE RATING O

Secondary Conditions:

a) ϑ

b)ϑu≤ 70 °C

c) Ûmax. see diagram below

d) ~ 10R

Secondary Conditions:

a) ≤ 70 (permissible constant

power at ϑu = 70 °C)

b)ϑu≤ 70 °C

c) Ûmax. see diagram below

d) ~ 10R

SQUARE PULSE i [s]

PULSE RATING ≤ 70

WK2

WR4

WR5

WK8

100

101

102

10-1

103

www.vishay.com For technical questions, contact: filmresistorsleaded@vishay.com Document Number: 20128

179 Revision: 26-May-10

WK/WR

High Power Metal Oxide Leaded Resistors Vishay Draloric

Note

(1) Limits for change of resistance at test

NON-LINEARITY

]Bd[ 3A YTIRAENIL-NON

130

120

110

100

1K 10K 100K 1M 10M

RESISTANCE VALUE IN

WR4

WR5/WK8

CURRENT NOISE

0.1

0.01

ESION TNE

CµV/V

WR4

10K 100K 1M 10M

RESISTANCE VALUE IN

2000

1000

WR 5/WK8

WR 4

MAX. PULSE VOLTAGE

WK 2

10-5 10-4 10-2

10-3 10-1 10

100

WR5/WK8

Secondary Conditions:

a) max. see diagram below

b) See diagram below

ϑu ≤ 70 °C

max.

[V]

EGATL

–

SQUARE PULSE i [s]

PERFORMANCE

TEST CONDITIONS OF TEST REQUIREMENTS

(ΔR MAX.) (1)

Rated Dissipation, P70

IEC 60115-1, 4.25.1 1000 h at 70 °C 1.5 h ON, 0.5 h OFF

WK2 ≤ ± (5 % R + 0.1 Ω)

WK8 ≤ ± (2 % R + 0.1 Ω)

WR4, WR5 ≤ ± (5 % R + 0.1 Ω)

Endurance at UCT

IEC 60115-1, 4.25.3 1000 h at 200 °C without load WK2, WR4 ≤ ± (5 % R + 0.1 Ω)

WR5, WK8 ≤ ± (1 % R + 0.1 Ω)

Overload Test

IEC 60115-1, 4.13

Short time overload 5 s at 2.5 x rated voltage or ≤ ± twice the limiting

element voltage ≤ ± (0.25 % R + 0.05 Ω)

Thermal Shock

IEC 60115-1, 4.19 Rapid change between upper and lower category temperature ≤ ± (0.25 % R + 0.05 Ω)

Climatic Sequence

IEC 60115-1, 4.23 Dry heat, damp heat cycle, cold, low air pressure ≤ ± (0.5 % R + 0.1 Ω)

Damp Heat Steady State

IEC 60115-1, 4.24 56 days; 40 °C; 90 % to 95 % RH; loaded with 0.01 P70 ≤ ± (1.5 % R + 0.1 Ω)

Resistance to Soldering Heat

IEC 60115-1, 4.18 10 s at 260 °C solder bath temperature ≤ ± (0.25 % R + 0.05 Ω)

Robustness of Terminations

IEC 60115-1, 4.16 Tensile, bending and torsion ≤ ± (0.25 % R + 0.05 Ω)

Vibration

IEC 60115-1, 4.22

Frequency 10 Hz to 500 Hz; displacement 1.5 mm or

acceleration 10 g; three directions; 6 h ≤ ± (0.25 % R + 0.05 Ω)

APPLICABLE SPECIFICATIONS

• EN140100, EN60115-1, IEC 60115-1

Document Number: 91000 www.vishay.com

Revision: 18-Jul-08 1

Disclaimer

Legal Disclaimer Notice

Vishay

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

otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such

applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting

from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding

products designed for such applications.

Product names and markings noted herein may be trademarks of their respective owners.