WW3FT250R

Rev Date: 12/21/2016
4 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
RoHS Compliance
Stackpole Electronics has joined the worldwide effort to reduce the amount of lead in electronic components and to
meet the various regulatory requirements now prevalent, such as the European Union’s directive regarding “Restrictions
on Hazardous Substances” (RoHS 2). As part of this ongoing program, we periodically update this document with the
status regarding the availability of our compliant components. All our standard part numbers are compliant to EU
Directive 2011/65/EU of the European Parliament.
“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 Easter 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.
RoHS Compliance Status
MWW
General Purpose and Precision Leaded
Wirewound Resistor - Molded
Axial
YES 100% Matte Sn
Jan-06
06/01
NWW
General Purpose and Precision Leaded
Wirewound Resistor - Conformal Coated -
Non-Inductive
Axial
YES 100% Matte Sn
Jan-06
06/01
WW
General Purpose and Precision Leaded
Wirewound Resistor - Conformal Coated -
Non-Inductive
Axial YES
100% Matte Sn Jan-06
06/01
Lead-Free
Mfg. Effective Date
(Std Product Series)
Lead-Free
Effective Date
Code
(YY/WW)
Standard
Product
Series
Description
Package /
Termination
Type
Standard
Series
RoHS
Compliant
Lead-Free Termination
Composition
Rev Date: 12/21/2016
5 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
1
2 3 4 5 6 7 8 9
W W 1 F T 1 K 0 0
WW Quantity
WWS 0.5 W
MWW 1.1 W
NWW 1.3 W
2.1
W
2.6
W
2.6
W
3.2
W
3.2
W
3.4
W
4.3
W
4.3
W
5.1
W
5.1
W
7.2
W
7.2
W
7.7
W
11.0
W
11.0
W
1.3
W
3.2
W
5.5
W
11.0
W
Power Rating
@ 70ºC
2,000
3W
3W
@ 125ºC
0.4W
1W
1W
1.5W
Code
B
D
F
5%
11" Tape
and Reel
WW1 / NWW1
WWS2 / NWWS2
WW1A / NWW1A
MWW1 / NMWW1
2.5W
6.5W
7W
2.5W
Product Series
Description
Size
Resistance Value
Tolerance
Code
Packaging
Mini
Molded
10W
1W
3W
5W
10W
WWS4 / NWWS4
WW2A / NWW2A
10W
WW3A / NWW3A
WW4 / NWW4
WWS5 / NWWS5
WW5 / NWW5
1 ohm = 1R00
WW2 / NWW2
WWS3 / NWWS3
WW2A / NWW2A
WW3 / NWW3
WWS7 / NWWS7
WW7 / NWW7
WWS10 / NWWS10
MWW3 / NMWW3
500
250
WW7B / NWW7B
MWW5 / NMWW5
Mini
Non-Inductive
Non-Inductive
NWWS
WW3A / NWW3A
WW4 / NWW4
10 Kohm = 10K0
Four characters
with the multiplier
used as the
decimal holder.
0.5%
1%
Tol
0.1%
T
2,500
WW12 / NWW12
WW12 / NWW12
WW1 / NWW1
WW2 / NWW2
WWS2 / NWWS2
WW1A / NWW1A
0.5 ohm = R500
J
Type/Code
Standard
Contact Stackpole for
package quantities.
WW3 / NWW3
WWS3 / NWWS3
WW5 / NWW5
WWS5 / NWWS5
WW7B / NWW7B
6.5W
MWW5 / NMWW5
WW7 / NWW7
WWS7 / NWWS7
MWW10 / NMWW10
WW10 / NWW10
WWS10 / NWWS10
MWW1 / NMWW1
MWW3 / NMWW3
WWS4 / NWWS4
MWW10 / NMWW10
WW10 / NWW10
NMWW
Non-Inductive
Molded
4W
4W
5W
5W
3W
B
Bulk
How to Order

WW3FT250R

Mfr. #:
Manufacturer:
Description:
RES 250 OHM 3W 1% AXIAL
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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