ROX Flameproof Power Metal Oxide Film Resistors TE Connectivity's (TE) Type ROX Series Flameproof Power Metal Oxide Film Resistors are ideal for high specification or technically demanding circuits. The resistive element comprises a metal oxide film deposited on a ceramic former. TE ROX Series Flameproof Power Metal Oxide Film Resistors' element is protected by a flameproof coating that withstand overload conditions without flame or mechanical damage. The series has rated power range of 0.25W to 9W and an operating temperature range of -55°C to +155°C.