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
1210L400SLWR PTC RESET FUSE 6V 4A 1210 Littelfuse Inc.	8,059	-	RFQ	Datasheet	1210 (3225 Metric), Concave	POLY-FUSE®, LoRho	Tape & Reel (TR)	Active	Polymeric	6V	4 A	8 A	50 A	5 s	1 mOhms	14 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.127" L x 0.102" W (3.22mm x 2.58mm)	-	0.039" (1.00mm)	-
1210L450SLWR PTC RESET FUSE 6V 4.5A 1210 Littelfuse Inc.	3,495	-	RFQ	Datasheet	1210 (3225 Metric), Concave	POLY-FUSE®, LoRho	Tape & Reel (TR)	Active	Polymeric	6V	4.5 A	9 A	50 A	2 s	1 mOhms	14 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.127" L x 0.102" W (3.22mm x 2.58mm)	-	0.047" (1.20mm)	-
1210L600SLWR PTC RESET FUSE 6.0A 6V 1210 Littelfuse Inc.	403	-	RFQ	Datasheet	1210 (3225 Metric), Concave	POLY-FUSE®, LoRho	Tape & Reel (TR)	Active	Polymeric	6V	6 A	12 A	50 A	2 s	1 mOhms	10 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.127" L x 0.101" W (3.22mm x 2.58mm)	-	0.055" (1.40mm)	-
1206L700SLPR LOW RHO SMD Littelfuse Inc.	176	-	RFQ	Datasheet	1206 (3216 Metric), Concave	PolySwitch® 1206L	Tape & Reel (TR)	Active	Polymeric	6V	7 A	14 A	50 A	2 s	1 mOhms	7 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.126" L x 0.065" W (3.20mm x 1.65mm)	-	0.055" (1.40mm)	-
72R250XF PTC RESET FUSE 72V 2.5A RADIAL Littelfuse Inc.	106	-	RFQ	Datasheet	Radial, Disc	POLY-FUSE®, 72R	Bulk	Active	Polymeric	72V	2.5 A	5 A	40 A	15.6 s	50 mOhms	130 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.785" Dia x 0.122" T (19.93mm x 3.10mm)	1.032" (26.20mm)	-	0.402" (10.20mm)
30R900UH PTC RESET FUSE 30V 9A RADIAL Littelfuse Inc.	505	-	RFQ	Datasheet	Radial, Disc	POLY-FUSE®, 30R	Bulk	Active	Polymeric	30V	9 A	18 A	40 A	20 s	5 mOhms	20 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.950" L x 0.120" W (24.10mm x 3.00mm)	1.244" (31.60mm)	-	0.402" (10.20mm)
72R250XMR PTC RESET FUSE 72V 2.5A RADIAL Littelfuse Inc.	2,000	-	RFQ	Datasheet	Radial, Disc	POLY-FUSE®, 72R	Cut Tape (CT)	Active	Polymeric	72V	2.5 A	5 A	40 A	15.6 s	50 mOhms	130 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.785" Dia x 0.122" T (19.93mm x 3.10mm)	1.032" (26.20mm)	-	0.402" (10.20mm)
72R375XH PTC RESET FUSE 72V 3.75A RADIAL Littelfuse Inc.	2,274	-	RFQ	Datasheet	Radial, Disc	POLY-FUSE®, 72R	Bulk	Active	Polymeric	72V	3.75 A	7.5 A	40 A	24 s	30 mOhms	80 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	1.035" Dia x 0.122" T (26.30mm x 3.10mm)	1.224" (31.10mm)	-	0.402" (10.20mm)
60R375XH PTC RESET FUSE 60V 3.75A RADIAL Littelfuse Inc.	154	-	RFQ	Datasheet	Radial, Disc	POLY-FUSE®, 60R	Bulk	Active	Polymeric	60V	3.75 A	7.5 A	40 A	24 s	30 mOhms	80 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	1.035" Dia x 0.122" T (26.30mm x 3.10mm)	1.224" (31.10mm)	-	0.402" (10.20mm)
BD280-1130-15/16 PTC RESET FUSE 14V 12A BLADE Littelfuse Inc.	977	-	RFQ	Datasheet	Blade Type	PolySwitch®, BD280	Bulk	Active	Polymeric	14V	12 A	20 A	100 A	8 s	5 mOhms	7 mOhms	-	-40°C ~ 125°C	Automotive	AEC-Q200	-	Holder	1.193" L x 0.433" W (30.30mm x 11.00mm)	0.262" (6.65mm)	-	-

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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.