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-R055/90-AP PTC RESET FUSE 90V 550MA RADIAL Bourns Inc.	4,926	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R/90	Tape & Box (TB)	Obsolete	Polymeric	90V	550 mA	1.1 A	10 A	60 s	450 mOhms	2 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.429" Dia x 0.142" T (10.90mm x 3.60mm)	0.657" (16.70mm)	-	0.201" (5.10mm)
MF-R055/90U-AP PTC RESET FUSE 90V 550MA RADIAL Bourns Inc.	2,933	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R/90	Tape & Box (TB)	Obsolete	Polymeric	90V	550 mA	1.1 A	10 A	28 s	450 mOhms	2 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.429" Dia x 0.142" T (10.90mm x 3.60mm)	0.657" (16.70mm)	-	0.201" (5.10mm)
MF-R065-AP-99 PTC RESET FUSE 60V 650MA RADIAL Bourns Inc.	5,888	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Box (TB)	Obsolete	Polymeric	60V	650 mA	1.3 A	40 A	5.3 s	270 mOhms	720 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.382" Dia x 0.122" T (9.70mm x 3.10mm)	0.598" (15.20mm)	-	0.201" (5.10mm)
MF-R075/90-AP PTC RESET FUSE 90V 750MA RADIAL Bourns Inc.	2,641	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R/90	Tape & Box (TB)	Obsolete	Polymeric	90V	750 mA	1.5 A	10 A	60 s	370 mOhms	1.65 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.409" Dia x 0.122" T (10.40mm x 3.10mm)	0.630" (16.00mm)	-	0.201" (5.10mm)
MF-R075-AP-99 PTC RESET FUSE 60V 750MA RADIAL Bourns Inc.	9,540	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Box (TB)	Obsolete	Polymeric	60V	750 mA	1.5 A	40 A	6.3 s	180 mOhms	600 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.409" Dia x 0.122" T (10.40mm x 3.10mm)	0.630" (16.00mm)	-	0.201" (5.10mm)
MF-R090-AP-99 PTC RESET FUSE 60V 900MA RADIAL Bourns Inc.	5,779	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Box (TB)	Obsolete	Polymeric	60V	900 mA	1.8 A	40 A	7.2 s	140 mOhms	470 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.461" L x 0.122" W (11.70mm x 3.10mm)	0.657" (16.70mm)	-	0.201" (5.10mm)
MF-R090-AP-9-99 PTC RESET FUSE 60V 900MA RADIAL Bourns Inc.	6,277	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Box (TB)	Obsolete	Polymeric	60V	900 mA	1.8 A	40 A	7.2 s	140 mOhms	470 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.461" L x 0.122" W (11.70mm x 3.10mm)	0.657" (16.70mm)	-	0.201" (5.10mm)
MF-R135-AP-99 PTC RESET FUSE 30V 1.35A RADIAL Bourns Inc.	4,047	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Box (TB)	Obsolete	Polymeric	30V	1.35 A	2.7 A	40 A	7.3 s	65 mOhms	170 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.350" Dia x 0.118" T (8.90mm x 3.00mm)	0.744" (18.90mm)	-	0.201" (5.10mm)
MF-R160-AP-99 PTC RESET FUSE 30V 1.6A RADIAL Bourns Inc.	7,403	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Box (TB)	Obsolete	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-R185-AP-99 PTC RESET FUSE 30V 1.85A RADIAL Bourns Inc.	6,878	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Box (TB)	Obsolete	Polymeric	30V	1.85 A	3.7 A	40 A	8.7 s	40 mOhms	110 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.472" Dia x 0.118" T (12.00mm x 3.00mm)	0.724" (18.40mm)	-	0.201" (5.10mm)
MF-R250-AP-10-99 PTC RESET FUSE 30V 2.5A RADIAL Bourns Inc.	2,179	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Box (TB)	Obsolete	Polymeric	30V	2.5 A	5 A	40 A	10.3 s	25 mOhms	70 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.472" L x 0.118" W (12.00mm x 3.00mm)	0.720" (18.30mm)	-	0.201" (5.10mm)
MF-R250-AP-99 PTC RESET FUSE 30V 2.5A RADIAL Bourns Inc.	4,260	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Box (TB)	Obsolete	Polymeric	30V	2.5 A	5 A	40 A	10.3 s	25 mOhms	70 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.472" L x 0.118" W (12.00mm x 3.00mm)	0.720" (18.30mm)	-	0.201" (5.10mm)
MF-R400-AP-99 PTC RESET FUSE 30V 4A RADIAL Bourns Inc.	4,766	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Box (TB)	Obsolete	Polymeric	30V	4 A	8 A	40 A	12.7 s	10 mOhms	50 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.567" L x 0.118" W (14.40mm x 3.00mm)	0.976" (24.80mm)	-	0.201" (5.10mm)
MF-R500-AP-99 PTC RESET FUSE 30V 5A RADIAL Bourns Inc.	9,051	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Box (TB)	Obsolete	Polymeric	30V	5 A	10 A	40 A	14.5 s	10 mOhms	50 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.685" L x 0.118" W (17.40mm x 3.00mm)	0.980" (24.90mm)	-	0.402" (10.20mm)
MF-R600-AP-99 PTC RESET FUSE 30V 6A RADIAL Bourns Inc.	4,957	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Box (TB)	Obsolete	-	30V	6 A	12 A	40 A	16 s	-	-	-	-	-	-	-	Through Hole	0.760" L x 0.118" W (19.30mm x 3.00mm)	1.256" (31.90mm)	-	0.215" (5.45mm)
MF-R700-AP-99 PTC RESET FUSE 30V 7A RADIAL Bourns Inc.	3,634	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Box (TB)	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-R800-AP-99 PTC RESET FUSE 30V 8A RADIAL Bourns Inc.	9,299	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Box (TB)	Obsolete	Polymeric	30V	8 A	16 A	40 A	18.8 s	5 mOhms	30 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-R900-AP-99 PTC RESET FUSE 30V 9A RADIAL Bourns Inc.	9,592	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Box (TB)	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-RX110-AP PTC RESET FUSE 60V 1.1A RADIAL Bourns Inc.	2,062	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Tape & Box (TB)	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-RX110-AP-99 PTC RESET FUSE 60V 1.1A RADIAL Bourns Inc.	3,537	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RX	Tape & Box (TB)	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)

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PTC Resettable Fuses FAQ

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