MF-RX135/72-2-14 is a radial leaded PTC resettable fuse designed for low-voltage power supply protection up to 60 V. It features a hold current of 1.35 A at 23°C with a trip current of 2.70 A, an initial resistance of 0.19 O, and a post-trip resistance of 0.30 O. The device is constructed with cured, flame-retardant epoxy polymer insulation meeting UL 94V-0 requirements and is RoHS compliant and halogen-free. It is commonly used in security and fire alarm systems, loudspeakers, and power transformers where automatic circuit protection and resettability are required.