PTC Resettable Fuses

Explore PTC Resettable Fuses parts from multiple manufacturers, with model information, availability, datasheets and technical specifications for engineering and purchasing.

For parts that are not shown in the list, send the manufacturer part number, quantity or BOM to JIEXIN Electronics. Our team can assist with availability checks and quotation support.

Mfr. Part #	Availability	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-R017-2-99 PTC RESET FUSE 60V 170MA RADIAL Bourns Inc.	3,712	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Reel (TR)	Obsolete	Polymeric	60V	170 mA	340 mA	40 A	3 s	2 Ohms	8 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-R020-2-99 PTC RESET FUSE 60V 200MA RADIAL Bourns Inc.	2,855	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Reel (TR)	Obsolete	Polymeric	60V	200 mA	400 mA	40 A	2.2 s	1.5 Ohms	4.4 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-R025-2-99 PTC RESET FUSE 60V 250MA RADIAL Bourns Inc.	9,139	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Reel (TR)	Obsolete	Polymeric	60V	250 mA	500 mA	40 A	2.5 s	1 Ohms	3 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-R030-2-99 PTC RESET FUSE 60V 300MA RADIAL Bourns Inc.	3,132	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Reel (TR)	Obsolete	Polymeric	60V	300 mA	600 mA	40 A	3 s	760 mOhms	2.1 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.291" Dia x 0.122" T (7.40mm x 3.10mm)	0.528" (13.40mm)	-	0.201" (5.10mm)
MF-R040-2-99 PTC RESET FUSE 60V 400MA RADIAL Bourns Inc.	2,242	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Reel (TR)	Obsolete	Polymeric	60V	400 mA	800 mA	40 A	3.8 s	520 mOhms	1.29 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.291" Dia x 0.122" T (7.40mm x 3.10mm)	0.539" (13.70mm)	-	0.201" (5.10mm)
MF-R050-2-99 PTC RESET FUSE 60V 500MA RADIAL Bourns Inc.	7,816	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Reel (TR)	Obsolete	Polymeric	60V	500 mA	1 A	40 A	4 s	410 mOhms	1.17 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.311" Dia x 0.122" T (7.90mm x 3.10mm)	0.539" (13.70mm)	-	0.201" (5.10mm)
MF-R055/90-2 PTC RESET FUSE 90V 550MA RADIAL Bourns Inc.	6,353	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R/90	Tape & Reel (TR)	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-R065-2-99 PTC RESET FUSE 60V 650MA RADIAL Bourns Inc.	6,317	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Reel (TR)	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-R075/90-2 PTC RESET FUSE 90V 750MA RADIAL Bourns Inc.	2,526	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R/90	Tape & Reel (TR)	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-R090-2-99 PTC RESET FUSE 60V 900MA RADIAL Bourns Inc.	7,679	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Reel (TR)	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-R090-2-9-99 PTC RESET FUSE 60V 900MA RADIAL Bourns Inc.	4,817	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Reel (TR)	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-R110-2-99 PTC RESET FUSE 30V 1.1A RADIAL Bourns Inc.	7,048	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Reel (TR)	Obsolete	Polymeric	30V	1.1 A	2.2 A	40 A	6.6 s	100 mOhms	270 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.350" Dia x 0.118" T (8.90mm x 3.00mm)	0.551" (14.00mm)	-	0.201" (5.10mm)
MF-R135-2-99 PTC RESET FUSE 30V 1.35A RADIAL Bourns Inc.	2,791	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Reel (TR)	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-R160-2-99 PTC RESET FUSE 30V 1.6A RADIAL Bourns Inc.	6,811	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Reel (TR)	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-R185-2-99 PTC RESET FUSE 30V 1.85A RADIAL Bourns Inc.	7,682	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Reel (TR)	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-R250-2-10-99 PTC RESET FUSE 30V 2.5A RADIAL Bourns Inc.	7,976	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Reel (TR)	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-R250-2-99 PTC RESET FUSE 30V 2.5A RADIAL Bourns Inc.	6,836	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Reel (TR)	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-R300-2-99 PTC RESET FUSE 30V 3A RADIAL Bourns Inc.	8,252	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Reel (TR)	Obsolete	Polymeric	30V	3 A	6 A	40 A	10.8 s	20 mOhms	80 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-R400-2-99 PTC RESET FUSE 30V 4A RADIAL Bourns Inc.	2,752	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Reel (TR)	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-R600-2-99 PTC RESET FUSE 30V 6A RADIAL Bourns Inc.	3,005	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-R	Tape & Reel (TR)	Obsolete	Polymeric	30V	6 A	12 A	40 A	16 s	5 mOhms	40 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.760" L x 0.118" W (19.30mm x 3.00mm)	1.256" (31.90mm)	-	0.402" (10.20mm)

FAQ

Frequently Asked Questions

What are PTC Resettable Fuses components used for?

PTC Resettable Fuses components are used in a wide range of electronic equipment and systems. Their exact function depends on the device, circuit design and technical requirements of the application.

How do I choose the right PTC Resettable Fuses part?

Compare the manufacturer part number, key specifications, package type, operating conditions, availability and datasheet information. For replacement projects, always verify the critical electrical and mechanical parameters before selecting an alternative.

Can JIEXIN Electronics help source obsolete or hard-to-find PTC Resettable Fuses parts?

Yes. Send us the required manufacturer part number, quantity or BOM. Our sourcing team can help check stock availability, lead time, alternative sourcing options and quotation details.

How can I request pricing and availability?

Submit the part number, manufacturer and required quantity through our RFQ form. JIEXIN Electronics will review your request and provide available stock, pricing and sourcing information.