Welwyn / TT Electronics FMW MELF Resistors
Welwyn / TT Electronics Fusible MELF Wirewound (FMW) Resistors are UL-recognised fusible wirewound resistors in SMD MELF format. These resistors feature up to 1.7J withstand fast inrush energies, 1W continuous power rating, and ±200ppm/°C TCR. The FMW MELF resistors consist of a design tailored to minimize fusing times at low power overloads. These resistors value down to 1Ω to support low quiescent power loss goals. Typical applications include power supplies, white goods controllers, building control systems, and cordless product chargers.
Features
- UL1412 recognized fusing
- Compact SMD format
- Flameproof wirewound technology
- Failsafe mains fusing at 120VRMS/240VRMS
- Specified surge performance
Applications
- Power supplies
- White goods controllers
- Building control systems
- Cordless product chargers
Related Resistors
Welwyn / TT Electronics WRM MELF Resistors
High-reliability resistors with tolerances down to 0.1% and TCR down to 5ppm/°C.
Additional Resource
Characteristics Curves
Published: 2025-05-26
| Updated: 2025-06-16