PTC Resettable Fuses

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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
B59985C0120A051 PTC RESET FUSE 30V 250MA RADIAL EPCOS - TDK Electronics	14,057	-	RFQ	Datasheet	Radial, Disc	B59985	Tape & Reel (TR)	Active	Ceramic	30V	250 mA	500 mA	1 A	-	-	-	4.6 Ohms	-40°C ~ 85°C	Automotive	AEC-Q200	-	Through Hole	0.256" Dia x 0.138" T (6.50mm x 3.50mm)	0.394" (10.00mm)	-	0.197" (5.00mm)
B59980C0080A051 PTC RESET FUSE 80V 50MA RADIAL EPCOS - TDK Electronics	4,110	-	RFQ	Datasheet	Radial, Disc	B59980	Tape & Reel (TR)	Active	Ceramic	80V	50 mA	110 mA	1 A	-	-	-	25 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)
B59890C0120A051 PTC RESET FUSE 265V 30MA RADIAL EPCOS - TDK Electronics	32,039	-	RFQ	Datasheet	Radial, Disc	-	Tape & Reel (TR)	Active	Ceramic	265V	30 mA	60 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)
B59880C0080A070 PTC RESET FUSE 265V 30MA RADIAL EPCOS - TDK Electronics	1,345	-	RFQ	Datasheet	Radial, Disc	-	Bulk	Active	Ceramic	265V	30 mA	70 mA	400 mA	-	-	-	70 Ohms	0°C ~ 60°C	-	-	-	Through Hole	0.256" Dia x 0.197" T (6.50mm x 5.00mm)	0.394" (10.00mm)	-	0.197" (5.00mm)
B59870C0130A070 PTC RESET FUSE 265V 100MA RADIAL EPCOS - TDK Electronics	249	-	RFQ	Datasheet	Radial, Disc	-	Bulk	Active	Ceramic	265V	100 mA	150 mA	400 mA	-	-	-	50 Ohms	0°C ~ 60°C	-	-	-	Through Hole	0.256" Dia x 0.197" T (6.50mm x 5.00mm)	0.394" (10.00mm)	-	0.197" (5.00mm)
B59970C0120A070 PTC RESET FUSE 80V 150MA RADIAL EPCOS - TDK Electronics	1,568	-	RFQ	Datasheet	Radial, Disc	B59970	Bulk	Active	Ceramic	80V	150 mA	300 mA	3 A	-	-	-	9.4 Ohms	-40°C ~ 125°C	-	-	-	Through Hole	0.354" Dia x 0.138" T (9.00mm x 3.50mm)	0.492" (12.50mm)	-	0.197" (5.00mm)
B59883C0120A070 PTC RESET FUSE 265V 35MA RADIAL EPCOS - TDK Electronics	1,605	-	RFQ	Datasheet	Radial, Disc	-	Bulk	Active	Ceramic	265V	35 mA	70 mA	400 mA	-	-	-	120 Ohms	0°C ~ 60°C	-	-	-	Through Hole	0.256" Dia x 0.197" T (6.50mm x 5.00mm)	0.394" (10.00mm)	-	0.197" (5.00mm)
B59886C0120A051 PTC RESET FUSE 550V 12MA RADIAL EPCOS - TDK Electronics	1,259	-	RFQ	Datasheet	Radial, Disc	-	Tape & Reel (TR)	Active	Ceramic	550V	12 mA	24 mA	100 mA	-	-	-	1.5 kOhms	0°C ~ 60°C	-	-	-	Through Hole	0.256" Dia x 0.197" T (6.50mm x 5.00mm)	0.394" (10.00mm)	-	0.197" (5.00mm)
B59870C0080A070 PTC RESET FUSE 265V 60MA RADIAL EPCOS - TDK Electronics	15,410	-	RFQ	Datasheet	Radial, Disc	-	Bulk	Active	Ceramic	265V	60 mA	130 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)
B59950C0130A070 PTC RESET FUSE 80V 320MA RADIAL EPCOS - TDK Electronics	997	-	RFQ	Datasheet	Radial, Disc	B59950	Bulk	Active	Ceramic	80V	320 mA	500 mA	4.3 A	-	-	-	4.9 Ohms	-40°C ~ 125°C	-	-	-	Through Hole	0.433" Dia x 0.138" T (11.00mm x 3.50mm)	0.571" (14.50mm)	-	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.