The TR/3216FF4.5-R is a fast-acting surface mount fuse that provides overcurrent protection with a 4.5A current rating. It is rated for 32 Vac and 32 Vdc and has an interrupting rating of 50 amps. Key electrical characteristics include a typical DC cold resistance of 0.0160 Ω, a typical melting I²t of 0.405 A²S, and an opening time of 1 second maximum at 350% of its rated current. As an AEC-Q200 qualified component, this fuse is ideal for automotive electronics and other demanding applications operating in temperatures from -55°C to +125°C.