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
RXEF020S PTC RESET FUSE 72V 200MA RADIAL Littelfuse Inc.	4,413	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RXEF	Bag	Active	Polymeric	72V	200 mA	400 mA	40 A	2.2 s	1.83 Ohms	4.4 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.291" Dia x 0.118" T (7.40mm x 3.00mm)	0.461" (11.70mm)	-	0.199" (5.05mm)
RXEF020S-2 PTC RESET FUSE 72V 200MA RADIAL Littelfuse Inc.	7,812	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RXEF	Tape & Reel (TR)	Active	Polymeric	72V	200 mA	400 mA	40 A	2.2 s	1.83 Ohms	4.4 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.350" Dia x 0.118" T (8.90mm x 3.00mm)	0.441" (11.20mm)	-	0.199" (5.05mm)
RUEF300-AP PTC RESET FUSE 30V 3A RADIAL Littelfuse Inc.	2,906	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RUEF	Cut Tape (CT)	Active	Polymeric	30V	3 A	6 A	100 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)	0.650" (16.50mm)	-	0.199" (5.05mm)
RGEF250-2 PTC RESET FUSE 16V 2.5A RADIAL Littelfuse Inc.	1,822	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RGEF	Tape & Reel (TR)	Active	Polymeric	16V	2.5 A	4.7 A	100 A	5 s	22 mOhms	53 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.350" L x 0.118" W (8.90mm x 3.00mm)	0.504" (12.80mm)	-	0.199" (5.05mm)
RUEF110-AP PTC RESET FUSE 30V 1.1A RADIAL Littelfuse Inc.	7,144	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RUEF	Cut Tape (CT)	Active	Polymeric	30V	1.1 A	2.2 A	100 A	6.6 s	70 mOhms	170 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.291" Dia x 0.118" T (7.40mm x 3.00mm)	0.559" (14.20mm)	-	0.199" (5.05mm)
RUEF250U PTC RESET FUSE 30V 2.5A RADIAL Littelfuse Inc.	12,475	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RUEF	Bag	Active	Polymeric	30V	2.5 A	5 A	100 A	10.3 s	20 mOhms	70 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.449" L x 0.118" W (11.40mm x 3.00mm)	0.720" (18.30mm)	-	0.199" (5.05mm)
SMDC030F-2 PTC RESET FUSE 60V 300MA 2920 Littelfuse Inc.	1,506	-	RFQ	Datasheet	2920 (7351 Metric), Concave	SMDC	Tape & Reel (TR)	Active	Polymeric	60V	300 mA	600 mA	10 A	3 s	300 mOhms	3.4 Ohms	-	-	-	-	-	Surface Mount	0.295" L x 0.201" W (7.50mm x 5.10mm)	-	0.035" (0.90mm)	-
ZEPTOSMDC0011F PTC RESET FUSE 11MA 13VDC 0201 Littelfuse Inc.	12,762	-	RFQ	Datasheet	2-SMD	POLYSWITCH® zeptoSMDC	Tape & Reel (TR)	Active	Polymeric	13V	11 mA	80 mA	82 mA	20 ms	10 Ohms	290 Ohms	-	-20°C ~ 60°C	-	-	-	Surface Mount	0.024" L x 0.018" W (0.60mm x 0.45mm)	-	0.016" (0.40mm)	-
1206L175PR PTC RESET FUSE 6V 1.75A 1206 Littelfuse Inc.	5,504	-	RFQ	Datasheet	1206 (3216 Metric), Concave	POLY-FUSE®, 1206L	Tape & Reel (TR)	Active	Polymeric	6V	1.75 A	3.5 A	100 A	500 ms	20 mOhms	90 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.128" L x 0.065" W (3.25mm x 1.65mm)	-	0.071" (1.80mm)	-
MINISMDC125F-2 PTC RESET FUSE 6V 1.25A 1812 Littelfuse Inc.	4,591	-	RFQ	Datasheet	1812 (4532 Metric), Concave	PolySwitch®, miniSMD	Tape & Reel (TR)	Active	Polymeric	6V	1.25 A	2.5 A	100 A	400 ms	50 mOhms	140 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.019" (0.48mm)	-

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.