The WWF Series from Stackpole is a fusible wirewound technology. Wirewounds typically handle at least 5 times the pulse energy of similar film resistors. Although this attribute is ideal for surge handling, it creates a risk under continuous overloads where the part may continue to generate heat until igniting itself, the PCB, or surrounding components and connectors on fire. Stackpole’s proprietary fusing design and materials creates a fast and safe failure event under continuous overload preventing such damage. The WWF Series is available in power ratings from ½ watt up to 10 watts, in resistance values from 10 ohms to 150K depending on size, in 5% tolerance, and 20 ppm TCR.
Pricing for the WWF ranges from $0.30 to $1.15 each depending on size and resistance value. Contact Stackpole or one of our franchised distribution partners for pricing.