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-RX135-AP PTC RESET FUSE 60V 1.35A RADIAL Bourns Inc.	9,500	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Tape & Box (TB)	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-AP-99 PTC RESET FUSE 60V 1.35A RADIAL Bourns Inc.	2,890	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Tape & Box (TB)	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-AP PTC RESET FUSE 60V 1.6A RADIAL Bourns Inc.	7,949	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Tape & Box (TB)	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-AP-99 PTC RESET FUSE 60V 1.6A RADIAL Bourns Inc.	5,076	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Tape & Box (TB)	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-AP PTC RESET FUSE 60V 1.85A RADIAL Bourns Inc.	7,534	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Tape & Box (TB)	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-RX185-AP-99 PTC RESET FUSE 60V 1.85A RADIAL Bourns Inc.	4,442	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Tape & Box (TB)	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-AP PTC RESET FUSE 60V 2.5A RADIAL Bourns Inc.	5,610	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Tape & Box (TB)	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-AP-99 PTC RESET FUSE 60V 2.5A RADIAL Bourns Inc.	4,722	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Tape & Box (TB)	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-AP PTC RESET FUSE 60V 3A RADIAL Bourns Inc.	4,783	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Tape & Box (TB)	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-AP-99 PTC RESET FUSE 60V 3A RADIAL Bourns Inc.	7,749	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Tape & Box (TB)	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)
CMF-SD35-10-2 PTC RESET FUSE 230V 100MA 4SMD Bourns Inc.	6,395	-	RFQ	Datasheet	4-SMD Cube	CMF-SD	Tape & Reel (TR)	Obsolete	Ceramic	230V (600V Int)	100 mA	200 mA	3 A	200 ms	-	-	35 Ohms	-	-	-	-	Surface Mount	0.402" L x 0.354" W (10.20mm x 9.00mm)	-	0.425" (10.80mm)	-
CMF-SD35-2 PTC RESET FUSE 230V 100MA 4SMD Bourns Inc.	6,729	-	RFQ	Datasheet	4-SMD Cube	CMF-SD	Tape & Reel (TR)	Obsolete	Ceramic	230V (600V Int)	100 mA	200 mA	3 A	200 ms	-	-	35 Ohms	-	-	-	-	Surface Mount	0.402" L x 0.354" W (10.20mm x 9.00mm)	-	0.425" (10.80mm)	-
CMF-SD35A-10-2 PTC RESET FUSE 230V 100MA 4SMD Bourns Inc.	4,462	-	RFQ	Datasheet	4-SMD Cube	CMF-SD	Tape & Reel (TR)	Obsolete	Ceramic	230V (600V Int)	100 mA	200 mA	2.5 A	200 ms	-	-	35 Ohms	-	-	-	-	Surface Mount	0.319" L x 0.282" W (8.10mm x 7.15mm)	-	0.335" (8.50mm)	-
CMF-SD50-2 PTC RESET FUSE 230V 90MA 4SMD Bourns Inc.	8,123	-	RFQ	Datasheet	4-SMD Cube	CMF-SD	Tape & Reel (TR)	Obsolete	Ceramic	230V (600V Int)	90 mA	190 mA	3 A	100 ms	-	-	50 Ohms	-	-	-	-	Surface Mount	0.402" L x 0.354" W (10.20mm x 9.00mm)	-	0.425" (10.80mm)	-
MF-R010-2-99 PTC RESET FUSE 60V 100MA RADIAL Bourns Inc.	9,229	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Reel (TR)	Obsolete	Polymeric	60V	100 mA	200 mA	40 A	4 s	2.5 Ohms	7.5 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.291" Dia x 0.122" T (7.40mm x 3.10mm)	0.500" (12.70mm)	-	0.201" (5.10mm)
MF-R015/600-2 PTC RESET FUSE 250V 150MA RADIAL Bourns Inc.	3,777	-	RFQ	Datasheet	Radial, Box	Multifuse®, MF-R/600	Tape & Reel (TR)	Obsolete	Polymeric	250V (600V Int)	150 mA	300 mA	3 A	5 s	6 Ohms	22 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.531" L x 0.236" W (13.50mm x 6.00mm)	0.496" (12.60mm)	-	0.197" (5.00mm)
MF-R015/600-A-2 PTC RESET FUSE 250V 150MA RADIAL Bourns Inc.	5,198	-	RFQ	Datasheet	Radial, Box	Multifuse®, MF-R/600	Tape & Reel (TR)	Obsolete	Polymeric	250V (600V Int)	150 mA	300 mA	3 A	5 s	7 Ohms	20 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.531" L x 0.236" W (13.50mm x 6.00mm)	0.496" (12.60mm)	-	0.197" (5.00mm)
MF-R015/600-B-2 PTC RESET FUSE 250V 150MA RADIAL Bourns Inc.	4,661	-	RFQ	Datasheet	Radial, Box	Multifuse®, MF-R/600	Tape & Reel (TR)	Obsolete	Polymeric	250V (600V Int)	150 mA	300 mA	3 A	5 s	9 Ohms	22 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.531" L x 0.236" W (13.50mm x 6.00mm)	0.496" (12.60mm)	-	0.197" (5.00mm)
MF-R015/600-F-2 PTC RESET FUSE 250V 150MA RADIAL Bourns Inc.	5,710	-	RFQ	Datasheet	Radial, Box	Multifuse®, MF-R/600	Tape & Reel (TR)	Obsolete	Polymeric	250V (600V Int)	150 mA	300 mA	3 A	5 s	7 Ohms	22 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.531" L x 0.236" W (13.50mm x 6.00mm)	0.496" (12.60mm)	-	0.197" (5.00mm)
MF-R016/600-2 PTC RESET FUSE 250V 160MA RADIAL Bourns Inc.	4,568	-	RFQ	Datasheet	Radial, Box	Multifuse®, MF-R/600	Tape & Reel (TR)	Obsolete	Polymeric	250V (600V Int)	160 mA	320 mA	3 A	7 s	4 Ohms	18 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.630" L x 0.236" W (16.00mm x 6.00mm)	0.496" (12.60mm)	-	0.197" (5.00mm)

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PTC Resettable Fuses FAQ

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