PTC Resettable Fuses

Use the filters and product table below to compare PTC Resettable Fuses components by manufacturer, availability, pricing reference and technical specifications. Review datasheets and key parameters to narrow the selection for your application.

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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
B59874C0120A051 PTC RESET FUSE 265V 60MA RADIAL EPCOS - TDK Electronics	2,441	-	RFQ	Datasheet	Radial, Disc	-	Tape & Reel (TR)	Obsolete	Ceramic	265V	60 mA	125 mA	1 A	-	-	-	55 Ohms	0°C ~ 60°C	-	-	-	Through Hole	0.354" Dia x 0.197" T (9.00mm x 5.00mm)	0.492" (12.50mm)	-	0.197" (5.00mm)
B59875C0120A051 PTC RESET FUSE 265V 55MA RADIAL EPCOS - TDK Electronics	7,739	-	RFQ	Datasheet	Radial, Disc	-	Tape & Reel (TR)	Obsolete	Ceramic	265V	55 mA	110 mA	1 A	-	-	-	65 Ohms	0°C ~ 60°C	-	-	-	Through Hole	0.354" Dia x 0.197" T (9.00mm x 5.00mm)	0.492" (12.50mm)	-	0.197" (5.00mm)
B59890C0080A054 PTC RESET FUSE 265V 15MA RADIAL EPCOS - TDK Electronics	5,374	-	RFQ	Datasheet	Radial, Disc	-	Tape & Reel (TR)	Obsolete	Ceramic	265V	15 mA	40 mA	200 mA	-	-	-	150 Ohms	0°C ~ 60°C	-	-	-	Through Hole	0.157" Dia x 0.197" T (4.00mm x 5.00mm)	0.295" (7.50mm)	-	0.197" (5.00mm)
B59870C160A51 PTC RESET FUSE 160V 125MA RADIAL EPCOS - TDK Electronics	9,652	-	RFQ	Datasheet	Radial, Disc	-	Tape & Reel (TR)	Active	Ceramic	160V	125 mA	250 mA	1 A	-	-	-	25 Ohms	0°C ~ 60°C	-	-	-	Through Hole	0.354" Dia x 0.197" T (9.00mm x 5.00mm)	0.492" (12.50mm)	-	0.197" (5.00mm)
B59995C0160A051 PTC RESET FUSE 20V 150MA RADIAL EPCOS - TDK Electronics	6,140	-	RFQ	Datasheet	Radial, Disc	B59995	Tape & Reel (TR)	Obsolete	Ceramic	20V	150 mA	300 mA	700 mA	-	-	-	13 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)
B59970C0080A051 PTC RESET FUSE 80V 90MA RADIAL EPCOS - TDK Electronics	7,742	-	RFQ	Datasheet	Radial, Disc	B59970	Tape & Reel (TR)	Obsolete	Ceramic	80V	90 mA	190 mA	3 A	-	-	-	9.4 Ohms	-40°C ~ 85°C	-	-	-	Through Hole	0.354" Dia x 0.138" T (9.00mm x 3.50mm)	0.492" (12.50mm)	-	0.197" (5.00mm)
B59975C160A51 PTC RESET FUSE 20V 550MA RADIAL EPCOS - TDK Electronics	2,292	-	RFQ	Datasheet	Radial, Disc	-	Tape & Reel (TR)	Obsolete	Ceramic	20V	550 mA	1.1 A	3 A	-	-	-	1.8 Ohms	-40°C ~ 85°C	-	-	-	Through Hole	0.354" Dia x 0.138" T (9.00mm x 3.50mm)	0.492" (12.50mm)	-	0.197" (5.00mm)
B59975C0160A054 PTC RESET FUSE 20V 550MA RADIAL EPCOS - TDK Electronics	2,235	-	RFQ	Datasheet	Radial, Disc	-	Tape & Reel (TR)	Obsolete	Ceramic	20V	550 mA	1.1 A	3 A	-	-	-	1.8 Ohms	-40°C ~ 85°C	-	-	-	Through Hole	0.354" Dia x 0.138" T (9.00mm x 3.50mm)	0.492" (12.50mm)	-	0.197" (5.00mm)
B59985C0160A051 PTC RESET FUSE 20V 300MA RADIAL EPCOS - TDK Electronics	2,300	-	RFQ	Datasheet	Radial, Disc	B59985	Tape & Reel (TR)	Obsolete	Ceramic	20V	300 mA	600 mA	1 A	-	-	-	4.6 Ohms	-40°C ~ 85°C	-	-	-	Through Hole	0.256" Dia x 0.138" T (6.50mm x 3.50mm)	0.394" (10.00mm)	-	0.197" (5.00mm)
B59990C0120A050 PTC RESET FUSE 80V 50MA RADIAL EPCOS - TDK Electronics	2,797	-	RFQ	Datasheet	Radial, Disc	-	Tape & Reel (TR)	Obsolete	Ceramic	80V	50 mA	100 mA	700 mA	-	-	-	55 Ohms	-40°C ~ 125°C	-	-	-	Through Hole	0.157" Dia x 0.138" T (4.00mm x 3.50mm)	0.295" (7.50mm)	-	0.197" (5.00mm)

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FREQUENTLY ASKED QUESTIONS

PTC Resettable Fuses FAQ

Common questions about filtering, comparing and sourcing PTC Resettable Fuses components.

How can I narrow the PTC Resettable Fuses selection?

Use the available manufacturer and technical parameter filters to reduce the product list. Compare the remaining part numbers against your electrical, package and application requirements.

Should I confirm the datasheet before selecting a part?

Yes. Always review the manufacturer datasheet to confirm ratings, package, operating conditions and other technical details before finalizing a component for your design.

Can Winsun (HK) Electronics help source a specific PTC Resettable Fuses part number?

Yes. Send the exact manufacturer part number and required quantity for availability, lead-time and quotation support.

Do you support BOM, shortage or alternative-part requirements?

Yes. You can submit a BOM or shortage list for sourcing assistance. Where appropriate, our team can also help review possible alternative-part options.