Bourns Mf-Rm025/240-2.
FUSE, RESETTABLE PTC, 240VAC, 250mA, RADIAL; Product Range:MF-RM Series; Voltage Rating:240VAC; Holding Current:250mA; Tripping Current:560mA; Time to Trip:18.5s; Fuse Shape:Rectangular; Current Rating Max:3.5A; Lead Spacing:5.1mm