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RWR Military

www.vishay.com

Vishay Dale

Wirewound Resistors, Military/Established Reliability,

MIL-PRF-39007 Qualified, Type RWR, R Level, Axial Lead

FEATURES

•

•

•

•

High temperature silicone coated

Complete welded construction

Qualified to MIL-PRF-39007

Available in non-inductive styles (type N) with Aryton-Perry

winding for lowest reactive components

•

“S” level failure rate available

Note

• “Terminal Wire and Winding” type “W” and “Z” are not listed

below but are available upon request. Please reference

MIL-PRF-39007 QPL for approved “failure rate” and “resistance

tolerance/ranges”

STANDARD ELECTRICAL SPECIFICATIONS

MILITARY MODEL

RWR81S

RWR81N

RWR82S

RWR82N

RWR80S

RWR80N

RWR71S

RWR71N

RWR89S

RWR89N

RWR74S

RWR74N

RWR84S

RWR84N

RWR78S

RWR78N

VISHAY REFERENCE

MODEL

EGS-1-80

EGN-1-80

EGS-2

EGN-2

EGS-3-80

EGN-3-80

ESS-2A

ESN-2A

ESS-2B

ESN-2B

ESS-5

ESN-5

EGS-10-80

EGN-10-80

ESS-10

ESN-10

POWER RATING

P

25 °C

W

1

1

2

2

2

2

2

2

3

3

5

5

7

7

10

10

RESISTANCE RANGE



± 0.1 %

0.499 to 1K

0.499 to 499

0.499 to 1.3K

0.499 to 649

0.499 to 3.16K

0.499 to 1.58K

0.499 to 12.1K

0.499 to 6.04K

0.499 to 4.12K

0.499 to 2.05K

0.499 to 12.1K

0.499 to 6.04K

0.499 to 12.4K

0.499 to 6.19K

0.499 to 39.2K

0.499 to 19.6K

RESISTANCE RANGE



± 0.5 %, ± 1 %

0.1 to 1K

0.1 to 499

0.1 to 1.3K

0.1 to 649

0.1 to 3.16K

0.1 to 1.58K

0.1 to 12.1K

0.1 to 6.04K

0.1 to 4.12K

0.1 to 2.05K

0.1 to 12.1K

0.1 to 6.04K

0.1 to 12.4K

0.1 to 6.19K

0.1 to 39.2K

0.1 to 19.6K

WEIGHT

(typical) g

0.21

0.21

0.23

0.23

0.34

0.34

0.90

0.90

0.70

0.70

4.2

4.2

3.6

3.6

9.0

9.0

TECHNICAL SPECIFICATIONS

PARAMETER

UNIT

RWR RESISTOR CHARACTERISTICS

Temperature Coefficient

ppm/°C ± 20 for 10



and above; ± 50 for 1.1



to 10

;

± 400 for 0.505



to 1

;

± 650 for 0.1



to 0.499



500 minimum for 2 W and smaller, 1000 minimum for 3 W and larger

Dielectric Withstanding Voltage

V

AC

5 x rated power for 5 s for 3 W size and smaller,

Short Time Overload

-

10 x rated power for 5 s for 5 W size and greater

Maximum Working Voltage

V

(P x

R)

1/2

Insulation Resistance

.

1000 M minimum dry, 100 M minimum after moisture test

Terminal Strength

lb

5 minimum for 2 W and smaller, 10 minimum for 3 W and larger

Solderability

-

Meets requirements of ANSI J-STD-002

Operating Temperature Range

°C

- 65 to + 250

GLOBAL PART NUMBER INFORMATION

Global Part Numbering example: RWR74S49R9FSB12

R

MIL TYPE

RWR71

RWR74

RWR78

RWR80

RWR81

RWR82

RWR84

RWR89

W

R

7

4

S

4

9

R

9

F

S

B

1

2

PACKAGING CODE

B12

= Bulk pack

S70

= Tape/reel

(smaller than 5 W)

S73

= Tape/reel

(5 W and higher)

BSL

= Bulk pack,

single lot date code

RSL

= Tape/reel,

single lot date code

TERMINAL WIRE AND WINDING

S

= Solderable, inductive

N

= Solderable, non-inductive

W

= Weldable, inductive

(1)

Z

= Weldable, non-inductive

(1)

RESISTANCE VALUE

3 digit significant figure,

followed by a multiplier

49R9

= 49.9



1000

= 100



1001

= 1000



TOLERANCE CODE

B

= ± 0.1 %

D

= ± 0.5 %

F

= ± 1.0 %

FAILURE RATE

M

= 1.0 %/1000 h

P

= 0.1 %/1000 h

R

= 0.01 %/1000 h

S

= 0.001 %/1000 h

(1)

Note

Note that “W” and “Z” are not listed above but are available, see MIL-PRF-39007 QPL for available resistance values.

1

For technical questions, contact:

ww2bresistors@vishay.com

Revision: 12-Sep-11

Document Number: 30203

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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