WWF Series
Stackpole Electronics, Inc.
General Purpose and Precision Fusing Wirewound Resistor
Features:
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Resistive Product Solutions
Fuses quickly under continuous overload of 15X rated power or greater
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
Dielectric
Strength (V)
Type / Code
Power Rating (Watts) @ 25ºC
Ohmic Range (Ω) and Tolerance (1)
WWFH
500V
0.6W
WWF1
500V
1.2W
WWF1A
500V
1.5W
WWF2
1000V
2.5W
WWF2A
1000V
3.0W
WWF3
1000V
3.7W
WWF3A
1000V
4.0W
WWF4
1000V
5.0W
WWF5
1000V
6.0W
WWF7
1000V
8.5W
WWF7B
1000V
9.0W
WWF10
1000V
13W
(1) Standard TC as follows: ±90ppm below 1Ω, ±50ppm from 1 - 10Ω and ±20ppm above 10Ω
0.1%, 0.5%, 1% and 5%
0.1 - 80K
0.1 - 40K
0.1 - 32K
0.1 - 19K
0.1 - 16K
0.1 - 13K
0.1 - 12K
0.1 - 10K
0.1 - 8K
0.1 - 6K
0.1 - 5K
0.1 - 4K
Performance Characteristics
Test
Results
Fuse Test @ 220 Vac
Moisture Resistance
Load Life
Temperature Cycling
Short Time Overload
Typically fuses in less than 1 second
1% max
1%
0.5%
1%
Rev Date: 07/27/2012
This specification may be changed at any time without prior notice.
Please confirm technical specifications before you order and/or use.
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