Suitable for high-power and high-voltage applications, 3 W Models RSF3 and RSMF3 feature working voltages of 800 V and 600 V, respectively, while 5 W Models RSF5 and RSMF5 offer working voltage of 1,000 V. Typical applications include power supplies, electric motor and pump controls, spa controls, and climate controls as well as LED lighting, portable electric tools, medical equipment, and COTS military applications.