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-R700-2-99 PTC RESET FUSE 30V 7A RADIAL Bourns Inc.	4,771	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Reel (TR)	Obsolete	Polymeric	30V	7 A	14 A	40 A	17.5 s	5 mOhms	30 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.870" L x 0.118" W (22.10mm x 3.00mm)	1.173" (29.80mm)	-	0.402" (10.20mm)
MF-R900-2-99 PTC RESET FUSE 30V 9A RADIAL Bourns Inc.	4,841	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Reel (TR)	Obsolete	Polymeric	30V	9 A	18 A	40 A	20 s	5 mOhms	20 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.953" L x 0.118" W (24.20mm x 3.00mm)	1.295" (32.90mm)	-	0.402" (10.20mm)
MF-RX014/250U-B5-2 PTC RESET FUSE 60V 145MA RADIAL Bourns Inc.	7,889	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX/250	Tape & Reel (TR)	Active	Polymeric	60V (250V Int)	145 mA	-	3 A	-	4.5 Ohms	14 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.236" L x 0.150" W (6.00mm x 3.80mm)	0.394" (10.00mm)	-	0.201" (5.10mm)
MF-RX110-2 PTC RESET FUSE 60V 1.1A RADIAL Bourns Inc.	6,925	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Tape & Reel (TR)	Obsolete	Polymeric	60V	1.1 A	2.2 A	40 A	8.2 s	150 mOhms	380 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.512" Dia x 0.122" T (13.00mm x 3.10mm)	0.709" (18.00mm)	-	0.201" (5.10mm)
MF-RX110-2-99 PTC RESET FUSE 60V 1.1A RADIAL Bourns Inc.	8,960	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Tape & Reel (TR)	Obsolete	Polymeric	60V	1.1 A	2.2 A	40 A	8.2 s	150 mOhms	380 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.512" Dia x 0.122" T (13.00mm x 3.10mm)	0.709" (18.00mm)	-	0.201" (5.10mm)
MF-RX135-2 PTC RESET FUSE 60V 1.35A RADIAL Bourns Inc.	6,023	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Tape & Reel (TR)	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-RX135-2-99 PTC RESET FUSE 60V 1.35A RADIAL Bourns Inc.	9,238	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Tape & Reel (TR)	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-RX160-2 PTC RESET FUSE 60V 1.6A RADIAL Bourns Inc.	2,120	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Tape & Reel (TR)	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-RX160-2-99 PTC RESET FUSE 60V 1.6A RADIAL Bourns Inc.	4,887	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Tape & Reel (TR)	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-RX250-2 PTC RESET FUSE 60V 2.5A RADIAL Bourns Inc.	8,074	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Tape & Reel (TR)	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-RX250-2-99 PTC RESET FUSE 60V 2.5A RADIAL Bourns Inc.	7,710	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Tape & Reel (TR)	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-RX300-2 PTC RESET FUSE 60V 3A RADIAL Bourns Inc.	4,327	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Tape & Reel (TR)	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-RX300-2-99 PTC RESET FUSE 60V 3A RADIAL Bourns Inc.	4,506	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Tape & Reel (TR)	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-RX375/72-2-99 PTC RESET FUSE 72V 3.75A RADIAL Bourns Inc.	7,549	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX/72	Tape & Reel (TR)	Obsolete	Polymeric	72V	3.75 A	7.5 A	40 A	24 s	30 mOhms	80 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.926" L x 0.122" W (23.51mm x 3.10mm)	1.161" (29.50mm)	-	0.402" (10.20mm)
MF-RX375-2 PTC RESET FUSE 60V 3.75A RADIAL Bourns Inc.	6,229	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Tape & Reel (TR)	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)
MF-RX375-2-99 PTC RESET FUSE 60V 3.75A RADIAL Bourns Inc.	6,496	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Tape & Reel (TR)	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)
MF-SM050-2-006 PTC RESET FUSE 60V 500MA 2SMD Bourns Inc.	3,796	-	RFQ	Datasheet	2-SMD	Multifuse®, MF-SM	Tape & Reel (TR)	Active	Polymeric	60V	500 mA	1 A	40 A	4 s	350 mOhms	1.4 Ohms	-	-40°C ~ 85°C	Automotive	AEC-Q200	-	Surface Mount	0.287" L x 0.214" W (7.31mm x 5.44mm)	-	0.125" (3.18mm)	-
MF-SM075-2-006 PTC RESET FUSE 30V 750MA 2SMD Bourns Inc.	5,490	-	RFQ	Datasheet	2-SMD	Multifuse®, MF-SM	Tape & Reel (TR)	Active	Polymeric	30V	750 mA	1.5 A	80 A	300 ms	230 mOhms	1 Ohms	-	-40°C ~ 85°C	Automotive	AEC-Q200	-	Surface Mount	0.287" L x 0.214" W (7.31mm x 5.44mm)	-	0.125" (3.18mm)	-
MF-SM150-2-006 PTC RESET FUSE 15V 1.5A 2SMD Bourns Inc.	6,066	-	RFQ	Datasheet	2-SMD	Multifuse®, MF-SM	Tape & Reel (TR)	Active	Polymeric	15V	1.5 A	3 A	100 A	5 s	60 mOhms	250 mOhms	-	-40°C ~ 85°C	Automotive	AEC-Q200	-	Surface Mount	0.344" L x 0.264" W (8.75mm x 6.71mm)	-	0.118" (3.00mm)	-
MF-SM250-2-006 PTC RESET FUSE 15V 2.5A 2SMD Bourns Inc.	3,857	-	RFQ	Datasheet	2-SMD	Multifuse®, MF-SM	Tape & Reel (TR)	Active	Polymeric	15V	2.5 A	5 A	100 A	25 s	24 mOhms	85 mOhms	-	-40°C ~ 85°C	Automotive	AEC-Q200	-	Surface Mount	0.344" L x 0.264" W (8.75mm x 6.71mm)	-	0.118" (3.00mm)	-

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PTC Resettable Fuses FAQ

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