PTC Resettable Fuses

PTC Resettable Fuses are designed to stop current flow when it exceeds a certain limit (overcurrent protection). The Fuses work by increasing its resistance as its temperature rises due to the current increase. The trip current ranges from 14 mA to 50 A with the Time to trip ranging from 8 ms to 90 s. PTC = Positive Temperature Coefficient.


Littelfuse Inc. RUEF400-1

PTC RESET FUSE 30V 4A RADIAL

0.63

Littelfuse Inc. RKEF250K

PTC RESET FUSE 60V 2.5A RADIAL

0.63

Bourns, Inc. MF-RX135/72-0

PTC RESET FUSE 72V 1.35A RADIAL

0.59

EPCOS (TDK) B59890C0120A051

PTC RESET FUSE 265V 30MA RADIAL

1.45

Littelfuse Inc. RUSBF250

PTC RESET FUSE 16V 2.5A RADIAL

0.55

Bourns, Inc. MF-LS100

PTC RESET FUSE 24V 1A STRAP

0.54

Bourns, Inc. MF-RX160

PTC RESET FUSE 60V 1.6A RADIAL

0.54

Littelfuse Inc. 60R160XF

PTC RESET FUSE 60V 1.6A RADIAL

0.52