The Bourns CMF-SDP series resettable fuses are designed for secondary overcurrent protection in telecom equipment such as Customer Premise Equipment (CPE) and Central Office (CO) access equipment. These fuses feature resistance-matched PTCs in a plastic housing, providing reliable protection with RoHS compliance. They offer narrow resistance tolerance and are available in various resistance ratings and package options to suit diverse application requirements. The CMF-SDP25A-2 specifically offers a rated resistance of 25 ohms with a ±20% tolerance, making it suitable for a range of overcurrent protection scenarios.