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.

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Select products	Mfr	Description	Package	Supplier Device Package	Mounting Type	Series	Operating Temperature
RS120-050 $0.93	OptiFuse	PTC RESET FUSE 120V 500MA RADIAL	Bulk		Through Hole	RS120	-40°C ~ 85°C
RS120-090 $1.22	OptiFuse	PTC Fuse-Thru Hole , 900mA 120V	Bulk		Through Hole	-	-40°C ~ 85°C
RS120-110 $1.36	OptiFuse	PTC RESET FUSE 120V 1.1A RADIAL	Bulk		Through Hole	RS120	-40°C ~ 85°C
RS120-130 $1.47	OptiFuse	PTC Fuse Radial Lead, 120V 1.3A	Bulk		Through Hole	RS120	-40°C ~ 85°C
RS120-185 $2.01	OptiFuse	PTC RESET FUSE 120V 1.85A RADIAL	Bulk		Through Hole	RS120	-40°C ~ 85°C
RS120-200 $2.15	OptiFuse	PTC RESET FUSE 120V 2A RADIAL	Bulk		Through Hole	RS120	-40°C ~ 85°C
RS120-300 $2.39	OptiFuse	PTC RESET FUSE 120V 3A RADIAL	Bulk		Through Hole	RS120	-40°C ~ 85°C
RS120-375 $2.56	OptiFuse	PTC RESET FUSE 120V 3.75A RADIAL	Bulk		Through Hole	RS120	-40°C ~ 85°C