TBH25 Thick Film Power Resistors Ohmite TBH25 25W Thick Film Power Resistors are TO220 style resistors designed for a variety of uses that require intermediate heatsinkable power at an economical price. Engineered for industrial applications, the TBH25 Series delivers reliable performance to traditional high-quality Ohmite standards. The Ohmite TBH25 Series 25W Thick Film Power Resistors feature 25W @ 25°C case temperature, non-inductive performance, and low terminal resistance. In addition, the TBH25 Series has a resistance element that is electrically insulated from the metal heat sink mounting tab. Applications include power supplies, industrial controls, automotive steering, pre-load/damping, snubber/bleeder, and current sensing.