WWF2AJT180R

Rev Date: 11/28/2016
1 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.
WWF Series
General Purpose Fusing Wirewound Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
120
100
80
60
40
20
Ambient Temperature ºC
275
325
25
75
125
175
225
375
% of Rated Power % of Rated Power
Characteristic "V"
Features:
Power Derating Curve:
High performance for low cost
High power to size ratio
High temperature silicone coating
RoHS compliant / lead-free
Bulk packaging available
contact Stackpole for package quantities
Electrical Specifications
Performance Characteristics
Characteristic "V" -55ºC to +350ºC
Type / Code
WWF12
500V
0.6W 0.5W
10 - 2K
WWF1
500V 1.2W
1.1W 10 -
3K
WWF1A
500V 1.5W 1.3W
10 - 7K
WWF2
1000V 2.5W
2.1W 10 -
10K
WWF2A
1000V
3.0W 2.6W
10 - 15K
WWF3
1000V 3.7W
3.2W 10 -
22K
WWF3A 1000V
4.0W
3.4W 10
-
30K
WWF4
1000V 5.0W
4.3W 10 - 40K
WWF5
1000V
6.0W 5.1W 10
- 50K
WWF7 1000V
8.5W 7.2W
10 - 70K
WWF7B 1000V
9.0W 7.7W
10 - 100K
WWF10
1000V
13W 11W 10
- 150K
Power Rating
(Watts) @ 70ºC
±20ppm/ºC
Dielectric
Strength (V)
Power Rating
(Watts) @ 25ºC
Ohmic Range (
Ω
) and
Tolerance
5%
TCR (ppm/ºC)
Test Test Specification
Fuse Test @ 220 Vac (1) Typically fuses in less than 1 second
Moisture Resistance 1% max
Load Life 1%
Temperature Cycling 0.5%
Short Time Overload 1%
Note (1): Valid only if resistance value is low enough that the test voltage causes overload of 15X rated power or more.
Rev Date: 11/28/2016
2 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.
WWF Series
General Purpose Fusing Wirewound Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
1 2
3 4 5 6 7 8 9 10
W W F 1 J T 1 0 K 0
Code Code Quantity
12 J
2,500
1
2,000
1A
750
2
50
2A
250
3
3A
4
5
7
7B
10
100 Kohm = 100K
WWF10
10 ohm - 10R0
2 Kohm = 2K00
2.5W
3W
3.7W
11" reel tape
5%
Product Series
Power
Tolerance
Description
Size
Resistance Value
Four characters with
the multiplier used as
the decimal holder.
WWF2, WWF2A, WWF3, WWF4
Tol
WWF3A
T
General Purpose
Fusing
Wirewound
WWF
@ 25ºC
Power
@ 70ºC
Size
Code
0.6W
1.2W
1.5W
Packaging
8.5W
9W
13W
0.5W
1.1W
1.3W
2.1W
2.6W
3.2W
3.4W
WWF12, WWF1, WWF1A
WWF5, WWF7, WWF7B
4W
5W
6W
4.3W
5.1W
7.2W
7.7W
11W
How to Order
Mechanical Specifications
0.312 ± 0.062 0.110 ± 0.031 0.025 ± 0.002
1.500 typ.
inches
7.92 ± 1.57 2.79 ± 0.79 0.62 ± 0.05 38.10
typ.
mm
0.375 ± 0.062 0.110 ± 0.031 0.025 ± 0.002
1.500 typ.
inches
9.53 ± 1.57 2.79 ± 0.79 0.64 ± 0.05 38.10
typ.
mm
0.420 ± 0.062 0.110 ± 0.031 0.025 ± 0.002
1.500 typ.
inches
10.67 ± 1.57 2.79 ± 0.79 0.64 ± 0.05 38.10
typ.
mm
0.370 ± 0.062 0.156 ± 0.031 0.032 ± 0.002
1.500 typ.
inches
9.40 ± 1.57 3.96 ± 0.79 0.81 ± 0.05 38.10
typ.
mm
0.550 ± 0.062 0.156 ± 0.031 0.032 ± 0.002
1.500 typ.
inches
13.97 ± 1.57 3.96 ± 0.79 0.81 ± 0.05 38.10
typ.
mm
0.560 ± 0.062 0.187 ± 0.031 0.032 ± 0.002
1.500 typ.
inches
14.22 ± 1.57 4.75 ± 0.79 0.81 ± 0.05 38.10
typ.
mm
0.500 ± 0.062 0.218 ± 0.031 0.032 ± 0.002
1.500 typ.
inches
12.70 ± 1.57 5.54 ± 0.79 0.81 ± 0.05 38.10
typ.
mm
0.700 ± 0.062 0.270 ± 0.031 0.036 ± 0.002
1.500 typ.
inches
17.78 ± 1.57 6.86 ± 0.79 0.91 ± 0.05 38.10
typ.
mm
0.875 ± 0.062 0.312 ± 0.031 0.036 ± 0.002
1.500 typ.
inches
22.23 ± 1.57 7.92 ± 0.79 0.91 ± 0.05 38.10
typ.
mm
1.000 ± 0.062 0.312 ± 0.031 0.036 ± 0.002
1.500 typ.
inches
25.40 ± 1.57 7.92 ± 0.79 0.91 ± 0.05 38.10
typ.
mm
1.200 ± 0.062 0.312 ± 0.031 0.036 ± 0.002
1.500 typ.
inches
30.48 ± 1.57 7.92 ± 0.79 0.91 ± 0.05 38.10
typ.
mm
1.780 ± 0.062 0.375 ± 0.031 0.036 ± 0.002
(2)
1.500 typ.
inches
45.21 ± 1.57 9.53 ± 0.79 0.91 ± 0.05
(2)
38.10
typ.
mm
Type / Code
WWF3A
Unit
WWF12
WWF1
WWF2
A
B
C
D
(Bulk)
(1)
WWF1A
WWF2A
WWF3
WWF4
WWF5
(2) Available in 0.040" (1.02 mm)
(1) See "Resistor Packaging Specification Document" for lead length dimension for tape and reel packaged product
WWF10
WWF7
WWF7B
Rev Date: 11/28/2016
3 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.
WWF Series
General Purpose Fusing 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
WWF
General Purpose and Precision Fusing
Wirewound Resistor
Axial YES 100% Matte Sn Always Always
Standard
Product
Series
Description
Package /
Termination
Type
Standard
Series
RoHS
Compliant
Lead-Free Termination
Composition
Lead-Free
Mfg. Effective Date
(Std Product Series)
Lead-Free
Effective Date
Code
(YY/WW)

WWF2AJT180R

Mfr. #:
Manufacturer:
Description:
Fixed Resistor - Fusible, 3W, 180ohm, 5% +/-Tol,20ppm/Cel, Through Hole Mount
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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