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
1206L380SLTHYR PTC RESET FUSE 6V 2.82A 1206 Littelfuse Inc.	6,840	-	RFQ	Datasheet	1206 (3216 Metric), Concave	POLY-FUSE®, LoRho	Tape & Reel (TR)	Active	Polymeric	6V	2.82 A	8 A	50 A	5 s	2 mOhms	14 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.128" L x 0.065" W (3.25mm x 1.65mm)	-	0.028" (0.70mm)	-
1206L200SLYR PTC RESET FUSE 6V 2A 1206 Littelfuse Inc.	5,032	-	RFQ	Datasheet	1206 (3216 Metric), Concave	POLY-FUSE®, LoRho	Tape & Reel (TR)	Active	Polymeric	6V	2 A	4 A	50 A	500 ms	5 mOhms	25 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.128" L x 0.065" W (3.25mm x 1.65mm)	-	0.024" (0.60mm)	-
1210L300SLWR PTC RESET FUSE 6V 3A 1210 Littelfuse Inc.	983	-	RFQ	Datasheet	1210 (3225 Metric), Concave	POLY-FUSE®, LoRho	Tape & Reel (TR)	Active	Polymeric	6V	3 A	6 A	50 A	2 s	3 mOhms	20 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.127" L x 0.102" W (3.22mm x 2.58mm)	-	0.028" (0.70mm)	-
1812L300MR PTC RESET FUSE 6V 3A 1812 Littelfuse Inc.	3,520	-	RFQ	Datasheet	1812 (4532 Metric), Concave	POLY-FUSE®, 1812L	Tape & Reel (TR)	Active	Polymeric	6V	3 A	5 A	100 A	4 s	12 mOhms	40 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.059" (1.50mm)	-
1812L010/60DR PTC RESET FUSE 60V 100MA 1812 Littelfuse Inc.	2,081	-	RFQ	Datasheet	1812 (4532 Metric), Concave	POLY-FUSE®, 1812L	Tape & Reel (TR)	Active	Polymeric	60V	100 mA	300 mA	10 A	1.5 s	1.6 Ohms	15 Ohms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.049" (1.25mm)	-
0805L150/12SLYR LOW RHO SMD Littelfuse Inc.	2,719	-	RFQ	Datasheet	0805 (2012 Metric), Concave	PolySwitch® Low Rho	Tape & Reel (TR)	Active	Polymeric	12V	1.5 A	3 A	50 A	500 ms	7 mOhms	80 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.083" L x 0.053" W (2.10mm x 1.35mm)	-	0.030" (0.75mm)	-
0603L003/36YR-A PTC 36V POLYFUSE SMD 0603 .030A Littelfuse Inc.	2,299	-	RFQ	Datasheet	0603 (1608 Metric), Concave	POLY-FUSE®, 0603L	Tape & Reel (TR)	Active	Polymeric	36V	30 mA	90 mA	40 A	1 s	6 Ohms	50 Ohms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.063" L x 0.031" W (1.60mm x 0.80mm)	-	0.039" (1.00mm)	-
2920L330/24MR-A PTC RESET FUSE 24V 3.3A 2920 Littelfuse Inc.	2,007	-	RFQ	Datasheet	2920 (7351 Metric), Concave	POLY-FUSE®, 2920L	Tape & Reel (TR)	Active	Polymeric	24V	3.3 A	5.5 A	40 A	5 s	15 mOhms	55 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.290" L x 0.202" W (7.36mm x 5.12mm)	-	0.079" (2.00mm)	-
AHEF1000 PTC RESET FUSE 32V 10A RADIAL Littelfuse Inc.	579	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, AHEF	Bag	Active	Polymeric	32V	10 A	20 A	100 A	15 s	6 mOhms	16 mOhms	-	-40°C ~ 125°C	Automotive	AEC-Q200	-	Through Hole	0.925" L x 0.157" W (23.50mm x 4.00mm)	1.098" (27.90mm)	-	0.400" (10.15mm)
1210L350SLWR PTC RESET FUSE 6V 3.5A 1210 Littelfuse Inc.	426	-	RFQ	Datasheet	1210 (3225 Metric), Concave	POLY-FUSE®, LoRho	Tape & Reel (TR)	Active	Polymeric	6V	3.5 A	7 A	50 A	2 s	3 mOhms	18 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.127" L x 0.102" W (3.22mm x 2.58mm)	-	0.028" (0.70mm)	-

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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.