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.

If you already have a target part number, package, rating or quantity, send the requirement to Winsun (HK) Electronics for availability checks, BOM sourcing, shortage support and quotation assistance.

Parametric Selection Filter options by technical parameters

Stock & Datasheets Review availability and technical references

RFQ & BOM Support Send your target MPN, quantity or BOM

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
RUEF700 PTC RESET FUSE 30V 7A RADIAL Littelfuse Inc.	538	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RUEF	Bag	Active	Polymeric	30V	7 A	14 A	100 A	17.5 s	5 mOhms	30 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.752" L x 0.118" W (19.10mm x 3.00mm)	1.020" (25.90mm)	-	0.400" (10.15mm)
RXEF250-2 PTC RESET FUSE 72V 2.5A RADIAL Littelfuse Inc.	1,637	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RXEF	Tape & Reel (TR)	Active	Polymeric	72V	2.5 A	5 A	40 A	15.6 s	50 mOhms	130 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.819" Dia x 0.118" T (20.80mm x 3.00mm)	1.000" (25.40mm)	-	0.400" (10.15mm)
30R300UU PTC RESET FUSE 30V 3A RADIAL Littelfuse Inc.	749	-	RFQ	Datasheet	Radial, Disc	POLY-FUSE®, 30R	Bulk	Active	Polymeric	30V	3 A	6 A	40 A	10.8 s	20 mOhms	80 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.449" L x 0.118" W (11.40mm x 3.00mm)	0.756" (19.20mm)	-	0.201" (5.10mm)
600R160UR PTC RESET FUSE 60V 160MA RADIAL Littelfuse Inc.	2,997	-	RFQ	Datasheet	Radial, Disc	POLY-FUSE®, 600R	Cut Tape (CT)	Active	Polymeric	60V (600V Int)	160 mA	320 mA	3 A	10 s	4 Ohms	18 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.630" L x 0.236" W (16.00mm x 6.00mm)	0.496" (12.60mm)	-	0.201" (5.10mm)
3425L260/60UR 3425L PPTC Littelfuse Inc.	1,037	-	RFQ	Datasheet	Nonstandard SMD	3425L	Tape & Reel (TR)	Active	Polymeric	60V	2.6 A	5.2 A	20 A	10 s	20 mOhms	120 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.341" L x 0.250" W (8.65mm x 6.35mm)	-	0.118" (3.00mm)	-
60R300XF PTC RESET FUSE 60V 3A RADIAL Littelfuse Inc.	1,529	-	RFQ	Datasheet	Radial, Disc	POLY-FUSE®, 60R	Bulk	Active	Polymeric	60V	3 A	6 A	40 A	19.8 s	40 mOhms	100 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.910" Dia x 0.122" T (23.11mm x 3.10mm)	1.154" (29.30mm)	-	0.402" (10.20mm)
RXEF017S PTC RESET FUSE 60V 170MA RADIAL Littelfuse Inc.	737	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RXEF	Bag	Active	Polymeric	60V	170 mA	340 mA	40 A	3 s	3.3 Ohms	8 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.291" Dia x 0.118" T (7.40mm x 3.00mm)	0.500" (12.70mm)	-	0.199" (5.05mm)
RXEF010S PTC RESET FUSE 60V 100MA RADIAL Littelfuse Inc.	560	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RXEF	Bag	Active	Polymeric	60V	100 mA	200 mA	40 A	4 s	2.5 Ohms	7.5 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.291" Dia x 0.118" T (7.40mm x 3.00mm)	0.457" (11.60mm)	-	0.199" (5.05mm)
RXEF025-AP PTC RESET FUSE 72V 250MA RADIAL Littelfuse Inc.	389	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RXEF	Cut Tape (CT)	Active	Polymeric	72V	250 mA	500 mA	40 A	2.5 s	1.25 Ohms	3 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.291" Dia x 0.118" T (7.40mm x 3.00mm)	0.500" (12.70mm)	-	0.199" (5.05mm)
RKEF065 PTC RESET FUSE 60V 650MA RADIAL Littelfuse Inc.	337	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RKEF	Bag	Active	Polymeric	60V	650 mA	1.3 A	40 A	1 s	250 mOhms	720 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.280" L x 0.140" W (7.10mm x 3.56mm)	0.480" (12.20mm)	-	0.199" (5.05mm)

WINSUN SOURCING SUPPORT

Need Help Sourcing PTC Resettable Fuses?

Send the target part number, manufacturer, specifications and quantity. Winsun (HK) Electronics can assist with availability checks, quotation support, shortage sourcing and alternative-part options when appropriate.

Availability and lead-time support BOM, shortage and alternative sourcing

Send part number & quantity Request a Quote

Need sourcing assistance? Contact Sales

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.