Rev Date: 11/29/2021

7

www.seielect.com

This specification may be changed at any time without prior notice.

marketing@seielect.com

Please confirm technical specifications before you order and/or use.

WW / MWW / NWW / WWS Series

General Purpose and Precision Wirewound Resistor

Stackpole Electronics, Inc.

Resistive Product Solutions

“Conflict Metals” Commitment

We at Stackpole Electronics, Inc. are joined with our industry in opposing the use of metals mined in the

“conflict region” of the eastern

Democratic Republic of the Congo (DRC) in our products. Recognizing that the supply chain for metals used in the electronics industry

is very complex, we work closely with our own suppliers to verify to the extent possible that the materials and products we supply do

not contain metals sourced from this conflict region. As such, we are in compliance with the requirements of Dodd-Frank Act regarding

Conflict Minerals.

Compliance to “REACH”

We certify that all passive components supplied by Stackpole Electronics, Inc. are SVHC (Substances of Very High Concern) free and

compliant with the requirements of EU Directive 1907/2006/EC, “The Registration, Evaluation, Authorization and Restriction of

Chemicals”, otherwise referred to as REACH. Contact us for complete list of REACH Substance Candidate List.

Environmental Policy

It is the policy of Stackpole Electronics, Inc. (SEI) to protect the environment in all localities in which we operate. We continually strive

to improve our effect on the environment. We observe all applicable laws and regulations regarding the protection of our environment

and all requests related to the environment to which we have agreed. We are committed to the prevention of all forms of pollution.

How to Order

W

W

1

F

T

1

K

0

0

Resistance Value

@ 125ºC

@ 70ºC

Code

Tol

Code Description

Size

Qty

12

0.4

0.5

B

0.1%

WW12 / NWW12

1

1

1.1

D

0.5%

WW1 / NWW1

1A

1

1.3

F

1%

WWS2 / NWWS2

2

1.5

2.1

J

5%

WW1A / NWW1A

2A

2.5

2.6

MWW1 / NMWW1

0.5 ohm = R500

3

3

3.2

WW2 / NWW2

1 ohm = 1R00

3A

3

3.4

WWS3 / NWWS3

10 Kohm = 10K0

4

4

4.3

WW2A / NWW2A

5

5

5.1

WW3 / NWW3

7

6.5

7.2

WWS4 / NWWS4

7B

7

7.7

MWW3 / NMWW3

10

10

11.0

WW3A / NWW3A

2

2.5

2.6

WW4 / NWW4

3

3

3.2

WWS5 / NWWS5

4

4

4.3

WW5 / NWW5

5

5

5.1

WWS7 / NWWS7

7

6.5

7.2

WW7 / NWW7

10

10

11.0

WW7B / NWW7B

1

1

1.3

WWS10 / NWWS10

3

3

3.2

MWW5 / NMWW5

5

5

5.5

WW10 / NWW10

10

10

11.0

MWW10 / NMWW10

Series

MWW (Molded)

NMWW (Non-inductive Molded)

2000

500

250

B

Bulk

Contact Stackpole for

package quantities.

WW (Standard)

NWW (Non-inductive)

WWS (Mini)

NWWS (Non-inductive Mini)

Code

Power Rating (W)

Tolerance

Packaging

Four characters

with the multiplier

used as the

decimal holder.

T

11" Tape

and Reel

2500