PTC Resettable Fuses

Browse available PTC Resettable Fuses part numbers with manufacturer references, stock information, pricing, datasheets and key specifications. Use the table below to compare options for your project.

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Mfr. Part #	Availability	Price	Quantity	Datasheet	Package/Case	Series	Packaging	Product Status	Type	Voltage - Max	Current - Hold (Ih) (Max)	Current - Trip (It)	Current - Max	Time to Trip	Resistance - Initial (Ri) (Min)	Resistance - Post Trip (R1) (Max)	Resistance - 25°C (Typ)	Operating Temperature	Grade	Qualification	Ratings	Mounting Type	Size / Dimension	Height - Seated (Max)	Thickness (Max)	Lead Spacing
MF-RX110 PTC RESET FUSE 60V 1.1A RADIAL Bourns Inc.	8,856	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Bulk	Obsolete	Polymeric	60V	1.1 A	2.2 A	40 A	8.2 s	150 mOhms	380 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.427" L x 0.122" W (10.84mm x 3.10mm)	0.662" (16.84mm)	-	0.201" (5.10mm)
MF-RX135 PTC RESET FUSE 60V 1.35A RADIAL Bourns Inc.	6,188	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Bulk	Obsolete	Polymeric	60V	1.35 A	2.7 A	40 A	9.6 s	120 mOhms	300 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.483" L x 0.122" W (12.26mm x 3.10mm)	0.718" (18.26mm)	-	0.201" (5.10mm)
MF-RX160 PTC RESET FUSE 60V 1.6A RADIAL Bourns Inc.	2,371	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Bulk	Obsolete	Polymeric	60V	1.6 A	3.2 A	40 A	11.4 s	90 mOhms	220 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.642" L x 0.122" W (16.30mm x 3.10mm)	0.839" (21.30mm)	-	0.201" (5.10mm)
MF-RX185 PTC RESET FUSE 60V 1.85A RADIAL Bourns Inc.	7,292	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Bulk	Obsolete	Polymeric	60V	1.85 A	3.7 A	40 A	12.6 s	80 mOhms	190 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.701" L x 0.122" W (17.80mm x 3.10mm)	0.902" (22.90mm)	-	0.201" (5.10mm)
MF-RX250 PTC RESET FUSE 60V 2.5A RADIAL Bourns Inc.	3,349	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Bulk	Obsolete	Polymeric	60V	2.5 A	5 A	40 A	15.6 s	50 mOhms	130 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.839" L x 0.122" W (21.30mm x 3.10mm)	1.039" (26.40mm)	-	0.402" (10.20mm)
MF-RX300 PTC RESET FUSE 60V 3A RADIAL Bourns Inc.	8,869	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Bulk	Obsolete	Polymeric	60V	3 A	6 A	40 A	19.8 s	40 mOhms	100 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.980" L x 0.122" W (24.90mm x 3.10mm)	1.181" (30.00mm)	-	0.402" (10.20mm)
MF-RX375 PTC RESET FUSE 60V 3.75A RADIAL Bourns Inc.	8,300	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Bulk	Obsolete	Polymeric	60V	3.75 A	7.5 A	40 A	24 s	30 mOhms	80 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	1.118" L x 0.122" W (28.40mm x 3.10mm)	1.319" (33.50mm)	-	0.402" (10.20mm)
RGE300 PTC RESET FUSE 16V 3A RADIAL Littelfuse Inc.	4,891	-	RFQ	Datasheet	Radial, Disc	PolySwitch®	Bulk	Obsolete	Polymeric	16V	3 A	5.1 A	100 A	1 s	38 mOhms	-	-	-	-	-	-	Through Hole	0.260" L x 0.098" W (6.60mm x 2.50mm)	0.433" (11.00mm)	-	0.199" (5.05mm)
RGE500 PTC RESET FUSE 16V 5A RADIAL Littelfuse Inc.	5,556	-	RFQ	Datasheet	Radial, Disc	PolySwitch®	Bulk	Obsolete	Polymeric	16V	5 A	8.5 A	100 A	2 s	15 mOhms	34 mOhms	-	-	-	-	-	Through Hole	0.390" L x 0.098" W (9.90mm x 2.50mm)	0.563" (14.30mm)	-	0.199" (5.05mm)
RGE700 PTC RESET FUSE 16V 7A RADIAL Littelfuse Inc.	3,110	-	RFQ	Datasheet	Radial, Disc	PolySwitch®	Bulk	Obsolete	Polymeric	16V	7 A	11.9 A	100 A	3.5 s	8 mOhms	20 mOhms	-	-	-	-	-	Through Hole	0.441" L x 0.118" W (11.20mm x 3.00mm)	0.776" (19.70mm)	-	0.201" (5.10mm)
RGE900 PTC RESET FUSE 16V 9A RADIAL Littelfuse Inc.	4,880	-	RFQ	Datasheet	Radial, Disc	PolySwitch®	Bulk	Obsolete	Polymeric	16V	9 A	15.3 A	100 A	5.5 s	5 mOhms	14 mOhms	-	-	-	-	-	Through Hole	0.530" L x 0.100" W (13.50mm x 2.50mm)	0.854" (21.70mm)	-	0.199" (5.05mm)
RGE1100 PTC RESET FUSE 16V 11A RADIAL Littelfuse Inc.	5,071	-	RFQ	Datasheet	Radial, Disc	PolySwitch®	Bulk	Obsolete	Polymeric	16V	11 A	18.7 A	100 A	7 s	3.7 mOhms	8.9 mOhms	-	-	-	-	-	Through Hole	0.669" L x 0.098" W (17.00mm x 2.50mm)	1.024" (26.00mm)	-	0.199" (5.05mm)
TR250-080U PTC RESET FUSE 250V 80MA RADIAL Littelfuse Inc.	8,714	-	RFQ	Datasheet	Radial, Disc	PolySwitch®	Bulk	Obsolete	Polymeric	250V (60V Int)	80 mA	-	3 A	3 s	14 Ohms	33 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.189" Dia x 0.150" T (4.80mm x 3.80mm)	0.366" (9.30mm)	-	0.197" (5.00mm)
RXE110-1 PTC RESET FUSE 72V 1.1A RADIAL Littelfuse Inc.	2,359	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RXE	Bulk	Obsolete	Polymeric	72V	1.1 A	2.2 A	40 A	8.2 s	150 mOhms	380 mOhms	-	-	-	-	-	Through Hole	0.504" Dia x 0.118" T (12.80mm x 3.00mm)	0.689" (17.50mm)	-	0.199" (5.05mm)
RUSB075 PTC RESET FUSE 6V 750MA RADIAL Littelfuse Inc.	7,653	-	RFQ	Datasheet	Radial, Disc	PolySwitch®	Bulk	Obsolete	Polymeric	6V	750 mA	1.3 A	40 A	400 ms	110 mOhms	230 mOhms	-	-	-	-	-	Through Hole	0.272" L x 0.118" W (6.90mm x 3.00mm)	0.449" (11.40mm)	-	0.201" (5.10mm)
RUSB090 PTC RESET FUSE 16V 900MA RADIAL Littelfuse Inc.	5,190	-	RFQ	Datasheet	Radial, Disc	PolySwitch®	Bulk	Obsolete	Polymeric	16V	900 mA	1.8 A	40 A	1.2 s	70 mOhms	180 mOhms	-	-	-	-	-	Through Hole	0.291" L x 0.118" W (7.40mm x 3.00mm)	0.480" (12.20mm)	-	0.199" (5.05mm)
RUSB120 PTC RESET FUSE 6V 1.2A RADIAL Littelfuse Inc.	8,991	-	RFQ	Datasheet	Radial, Disc	PolySwitch®	Bulk	Obsolete	Polymeric	6V	1.2 A	2 A	40 A	500 ms	70 mOhms	140 mOhms	-	-	-	-	-	Through Hole	0.272" Dia x 0.122" T (6.90mm x 3.10mm)	0.461" (11.70mm)	-	0.201" (5.10mm)
RUSB135 PTC RESET FUSE 16V 1.35A RADIAL Littelfuse Inc.	3,383	-	RFQ	Datasheet	Radial, Disc	PolySwitch®	Bulk	Obsolete	Polymeric	16V	1.35 A	2.7 A	40 A	4.5 s	40 mOhms	115 mOhms	-	-	-	-	-	Through Hole	0.350" L x 0.118" W (8.90mm x 3.00mm)	0.532" (13.50mm)	-	0.199" (5.05mm)
RUSB250 PTC RESET FUSE 16V 2.5A RADIAL Littelfuse Inc.	3,946	-	RFQ	Datasheet	Radial, Disc	PolySwitch®	Bulk	Obsolete	Polymeric	16V	2.5 A	5 A	40 A	40 s	20 mOhms	60 mOhms	-	-	-	-	-	Through Hole	0.449" L x 0.118" W (11.40mm x 3.00mm)	0.720" (18.30mm)	-	0.199" (5.05mm)
RGE1400 PTC RESET FUSE 16V 14A RADIAL Littelfuse Inc.	7,578	-	RFQ	Datasheet	Radial, Disc	PolySwitch®	Bulk	Obsolete	Polymeric	16V	14 A	23.8 A	100 A	9 s	2.6 mOhms	6.4 mOhms	-	-	-	-	-	Through Hole	0.904" L x 0.114" W (22.96mm x 2.90mm)	1.102" (28.00mm)	-	0.400" (10.15mm)

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