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
B59830C0130A070 PTC RESET FUSE 265V 450MA RADIAL EPCOS - TDK Electronics	986	-	RFQ	Datasheet	Radial, Disc	-	Bulk	Active	Ceramic	265V	450 mA	680 mA	4.1 A	-	-	-	5 Ohms	0°C ~ 60°C	-	-	-	Through Hole	0.689" Dia x 0.197" T (17.50mm x 5.00mm)	0.827" (21.00mm)	-	0.197" (5.00mm)
B59930C0120A070 PTC RESET FUSE 80V 700MA RADIAL EPCOS - TDK Electronics	2,448	-	RFQ	Datasheet	Radial, Disc	-	Bulk	Active	Ceramic	80V	700 mA	1.4 A	10 A	-	-	-	1.65 Ohms	0°C ~ 60°C	-	-	-	Through Hole	0.866" Dia x 0.138" T (22.00mm x 3.50mm)	1.004" (25.50mm)	-	0.197" (5.00mm)
B59995C0120A051 PTC RESET FUSE 30V 120MA RADIAL EPCOS - TDK Electronics	2,500	-	RFQ	Datasheet	Radial, Disc	B59995	Tape & Reel (TR)	Active	Ceramic	30V	120 mA	240 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)
B59980C0120A051 PTC RESET FUSE 80V 85MA RADIAL EPCOS - TDK Electronics	2,712	-	RFQ	Datasheet	Radial, Disc	B59980	Tape & Reel (TR)	Active	Ceramic	80V	85 mA	170 mA	1 A	-	-	-	25 Ohms	-40°C ~ 125°C	-	-	-	Through Hole	0.256" Dia x 0.138" T (6.50mm x 3.50mm)	0.394" (10.00mm)	-	0.197" (5.00mm)
B59995C0160A070 PTC RESET FUSE 20V 150MA RADIAL EPCOS - TDK Electronics	1,008	-	RFQ	Datasheet	Radial, Disc	B59995	Bulk	Active	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)
B59850C0120A051 PTC RESET FUSE 265V 200MA RADIAL EPCOS - TDK Electronics	844	-	RFQ	Datasheet	Radial, Disc	-	Tape & Reel (TR)	Active	Ceramic	265V	200 mA	400 mA	2.2 A	-	-	-	10 Ohms	0°C ~ 60°C	-	-	-	Through Hole	0.532" Dia x 0.197" T (13.50mm x 5.00mm)	0.669" (17.00mm)	-	0.197" (5.00mm)
B59735T1120A062 THERMISTOR PTC 35 OHM 15% 4SMD EPCOS - TDK Electronics	968	-	RFQ	Datasheet	4-SMD	-	Tape & Reel (TR)	Active	Ceramic	135VAC	110 mA	230 mA	4.6 A	0.04 s	35 Ohms	-	-	0°C ~ 70°C	-	-	-	Surface Mount	0.413" L x 0.335" W (10.50mm x 8.50mm)	-	0.413" (10.50mm)	-
B59750T1120A062 THERMISTOR PTC 50 OHM 15% 4SMD EPCOS - TDK Electronics	965	-	RFQ	Datasheet	4-SMD	B59750	Tape & Reel (TR)	Active	Ceramic	135VAC	90 mA	190 mA	2.5 A	0.1 s	50 Ohms	-	-	0°C ~ 70°C	-	-	-	Surface Mount	0.413" L x 0.335" W (10.50mm x 8.50mm)	-	0.413" (10.50mm)	-
B59965C0160A070 PTC RESET FUSE 20V 700MA RADIAL EPCOS - TDK Electronics	645	-	RFQ	Datasheet	Radial, Disc	B59965	Bulk	Active	Ceramic	20V	700 mA	1.45 A	4.3 A	-	-	-	1.2 Ohms	-40°C ~ 85°C	Automotive	AEC-Q200	-	Through Hole	0.433" Dia x 0.138" T (11.00mm x 3.50mm)	0.571" (14.50mm)	-	0.197" (5.00mm)
B59883C0120A051 PTC RESET FUSE 265V 35MA RADIAL EPCOS - TDK Electronics	978	-	RFQ	Datasheet	Radial, Disc	-	Tape & Reel (TR)	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)

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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.