CMF-RL25U-0 is a telecom CPTC resettable fuse designed for secondary overcurrent protection in telecommunications equipment such as Customer Premise Equipment (CPE), Central Office (CO), and Access equipment. This uncoated radial leaded device features a rated resistance of 25 Ohms with ±20% tolerance, a rated voltage of 220 Volts, and an induction voltage withstand rating of 600 VAC. The fuse exhibits a trip current of 0.060 Amps at 25°C, a maximum current (Imax) of 0.150 Amps at 220 VAC, and a time to trip of 0.9 seconds at Imax/220 VAC. With its compact Style 2 form factor (5.2 mm × 3.5 mm × 5.2 mm), Sn/Cu lead material, and RoHS compliance, the CMF-RL25U-0 provides reliable protection against overcurrent events while meeting ITU-T K.20/21/45, Telcordia GR-1089-CORE, and UL 60950 standards, making it ideal for demanding telecom applications requiring narrow resistance tolerance and consistent performance.