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
RXEF250-1 PTC RESET FUSE 72V 2.5A RADIAL Littelfuse Inc.	8,053	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RXEF	Bulk	Obsolete	Polymeric	72V	2.5 A	5 A	40 A	15.6 s	50 mOhms	130 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.819" Dia x 0.118" T (20.80mm x 3.00mm)	1.000" (25.40mm)	-	0.400" (10.15mm)
PRG21BC4R7MM1RK PTC RESET FUSE Murata Electronics	5,412	-	RFQ	Datasheet	-	*	Tape & Reel (TR)	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
PRG21BC2R2MM1RK PTC RESET FUSE Murata Electronics	8,899	-	RFQ	Datasheet	-	*	Tape & Reel (TR)	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
PRG21BC6R8MM1RK PTC RESET FUSE Murata Electronics	2,262	-	RFQ	Datasheet	-	*	Tape & Reel (TR)	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
PRG21BC3R3MM1RK PTC RESET FUSE Murata Electronics	6,615	-	RFQ	Datasheet	-	*	Tape & Reel (TR)	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
TRF250-110U-2 PTC RESET FUSE 60V 110MA RADIAL Littelfuse Inc.	8,286	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, TRF250	Tape & Reel (TR)	Obsolete	Polymeric	60V (250V Int)	110 mA	220 mA	3 A	1.2 s	5 Ohms	16 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.209" Dia x 0.150" T (5.30mm x 3.80mm)	0.370" (9.40mm)	-	0.197" (5.00mm)
B59990C0080A051 PTC RESET FUSE 80V 30MA RADIAL EPCOS - TDK Electronics	3,588	-	RFQ	Datasheet	Radial, Disc	B59990	Tape & Reel (TR)	Active	Ceramic	80V	30 mA	60 mA	700 mA	-	-	-	55 Ohms	-40°C ~ 85°C	-	-	-	Through Hole	0.157" Dia x 0.138" T (4.00mm x 3.50mm)	0.295" (7.50mm)	-	0.197" (5.00mm)
PTR060V0017-TR1 PTC RESET FUSE 60V 170MA RADIAL Eaton - Electronics Division	7,081	-	RFQ	Datasheet	Radial, Disc	PTR060V	Tape & Reel (TR)	Active	Polymeric	60V	170 mA	340 mA	40 A	3 s	3.3 Ohms	8 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.291" Dia x 0.118" T (7.40mm x 3.00mm)	0.500" (12.70mm)	-	0.197" (5.00mm)
MF-R160-AP PTC RESET FUSE 30V 1.6A RADIAL Bourns Inc.	6,641	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Box (TB)	Active	Polymeric	30V	1.6 A	3.2 A	40 A	8 s	55 mOhms	150 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.402" Dia x 0.118" T (10.20mm x 3.00mm)	0.661" (16.80mm)	-	0.201" (5.10mm)
MF-RX135/72-AP-14 FUSE PTC RESETTABLE Bourns Inc.	9,962	-	RFQ	Datasheet	Radial, Disc	MF-RX/72	Tape & Box (TB)	Active	-	72V	1.35 A	2.7 A	40 A	9.6 s	-	-	-	-	-	-	-	Through Hole	0.483" L x 0.122" W (12.26mm x 3.10mm)	0.718" (18.26mm)	-	0.201" (5.10mm)
MF-RX110/72-AP-14 PTC RESET FUSE 72V 1.1A RADIAL Bourns Inc.	3,887	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX/72	Tape & Box (TB)	Active	Polymeric	72V	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)	0.663" (16.84mm)	-	0.201" (5.10mm)
MF-RX090/72-AP-17 PTC RESETTABLE 0.9A 72V RADIAL L Bourns Inc.	3,551	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX/72	Tape & Box (TB)	Active	Polymeric	72V	900 mA	1.8 A	40 A	7.2 s	140 mOhms	470 mOhms	-	-40°C ~ 85°C	Automotive	AEC-Q200	-	Through Hole	0.461" Dia x 0.122" T (11.70mm x 3.10mm)	0.657" (16.70mm)	-	0.201" (5.10mm)
MF-RX075/72-AP-17 PTC RESETTABLE 0.75A 72V RADIAL Bourns Inc.	4,095	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX/72	Tape & Box (TB)	Active	Polymeric	72V	750 mA	1.5 A	40 A	6.3 s	180 mOhms	600 mOhms	-	-40°C ~ 85°C	Automotive	AEC-Q200	-	Through Hole	0.409" Dia x 0.122" T (10.40mm x 3.10mm)	0.630" (16.00mm)	-	0.201" (5.10mm)
MF-RX040/72-AP-17 PTC RESETTABLE 0.4A 72V RADIAL L Bourns Inc.	7,821	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX/72	Tape & Box (TB)	Active	Polymeric	72V	400 mA	800 mA	40 A	3.9 s	520 mOhms	1.29 Ohms	-	-40°C ~ 85°C	Automotive	AEC-Q200	-	Through Hole	0.291" Dia x 0.122" T (7.40mm x 3.10mm)	0.539" (13.70mm)	-	0.201" (5.10mm)
MF-RX065/72-AP-17 PTC RESETTABLE 0.65A 72V RADIAL Bourns Inc.	8,822	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX/72	Tape & Box (TB)	Active	Polymeric	72V	650 mA	1.3 A	40 A	5.3 s	270 mOhms	720 mOhms	-	-40°C ~ 85°C	Automotive	AEC-Q200	-	Through Hole	0.382" Dia x 0.122" T (9.70mm x 3.10mm)	0.598" (15.20mm)	-	0.201" (5.10mm)
MF-RX065/72-2-17 PTC RESETTABLE 0.65A 72V RADIAL Bourns Inc.	2,645	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX/72	Tape & Reel (TR)	Active	Polymeric	72V	650 mA	1.3 A	40 A	5.3 s	270 mOhms	720 mOhms	-	-40°C ~ 85°C	Automotive	AEC-Q200	-	Through Hole	0.382" Dia x 0.122" T (9.70mm x 3.10mm)	0.598" (15.20mm)	-	0.201" (5.10mm)
MF-RX050/72-AP-17 PTC RESETTABLE 0.5A 72V RADIAL L Bourns Inc.	8,762	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX/72	Tape & Box (TB)	Active	Polymeric	72V	500 mA	1 A	40 A	4 s	410 mOhms	1.17 Ohms	-	-40°C ~ 85°C	Automotive	AEC-Q200	-	Through Hole	0.311" Dia x 0.122" T (7.90mm x 3.10mm)	0.539" (13.70mm)	-	0.201" (5.10mm)
MF-R160-0-17 PTC RESETTABLE 1.6A 30V RADIAL L Bourns Inc.	9,873	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Bulk	Active	Polymeric	30V	1.6 A	3.2 A	40 A	8 s	55 mOhms	150 mOhms	-	-40°C ~ 85°C	Automotive	AEC-Q200	-	Through Hole	0.402" Dia x 0.118" T (10.20mm x 3.00mm)	0.661" (16.80mm)	-	0.201" (5.10mm)
MF-RX040/72-2-17 PTC RESETTABLE 0.4A 72V RADIAL L Bourns Inc.	5,079	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX/72	Tape & Reel (TR)	Active	Polymeric	72V	400 mA	800 mA	40 A	3.9 s	520 mOhms	1.29 Ohms	-	-40°C ~ 85°C	Automotive	AEC-Q200	-	Through Hole	0.291" Dia x 0.122" T (7.40mm x 3.10mm)	0.539" (13.70mm)	-	0.201" (5.10mm)
MF-RX050/72-2-17 PTC RESETTABLE 0.5A 72V RADIAL L Bourns Inc.	9,778	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX/72	Tape & Reel (TR)	Active	Polymeric	72V	500 mA	1 A	40 A	4 s	410 mOhms	1.17 Ohms	-	-40°C ~ 85°C	Automotive	AEC-Q200	-	Through Hole	0.311" Dia x 0.122" T (7.90mm x 3.10mm)	0.539" (13.70mm)	-	0.201" (5.10mm)

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