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
AGRF600-2 PTC RESET FUSE 16V 6A RADIAL Littelfuse Inc.	3,498	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, AGRF	Tape & Reel (TR)	Active	Polymeric	16V	6 A	10.7 A	100 A	3.5 s	9.5 mOhms	28 mOhms	-	-40°C ~ 85°C	Automotive	AEC-Q200	-	Through Hole	0.421" L x 0.118" W (10.70mm x 3.00mm)	0.724" (18.40mm)	-	0.199" (5.05mm)
250R120ZR PTC RESET FUSE 60V 120MA RADIAL Littelfuse Inc.	8,268	-	RFQ	Datasheet	Radial, Disc	POLY-FUSE®, 250R	Cut Tape (CT)	Active	Polymeric	60V (250V Int)	120 mA	240 mA	3 A	2.5 s	4 Ohms	16 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.256" L x 0.181" W (6.50mm x 4.60mm)	0.433" (11.00mm)	-	0.201" (5.10mm)
AHRF450-2 PTC RESET FUSE 16V 4.5A RADIAL Littelfuse Inc.	4,847	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, AHRF	Tape & Reel (TR)	Active	Polymeric	16V	4.5 A	8.7 A	100 A	4 s	17 mOhms	54 mOhms	-	-40°C ~ 125°C	Automotive	AEC-Q200	-	Through Hole	0.409" L x 0.122" W (10.40mm x 3.10mm)	0.614" (15.60mm)	-	0.200" (5.08mm)
VLR170F PTC RESET FUSE 12V 1.7A STRAP Littelfuse Inc.	5,431	-	RFQ	Datasheet	Strap	PolySwitch®, VLR	Bulk	Active	Polymeric	12V	1.7 A	4.1 A	100 A	5 s	18 mOhms	64 mOhms	-	-40°C ~ 70°C	-	-	-	User Defined	0.866" L x 0.146" W (22.00mm x 3.70mm)	-	0.032" (0.80mm)	-
VTP170XSF PTC RESET FUSE 16V 1.7A STRAP Littelfuse Inc.	2,780	-	RFQ	Datasheet	Strap	PolySwitch®, VTP	Bulk	Active	Polymeric	16V	1.7 A	3.4 A	100 A	5 s	-	-	-	-40°C ~ 85°C	-	-	-	User Defined	0.862" L x 0.201" W (21.90mm x 5.10mm)	-	0.032" (0.80mm)	-
AGRF900-2 PTC RESET FUSE 16V 9A RADIAL Littelfuse Inc.	4,059	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, AGRF	Tape & Reel (TR)	Active	Polymeric	16V	9 A	16.5 A	100 A	6 s	4.1 mOhms	13.5 mOhms	-	-40°C ~ 85°C	Automotive	AEC-Q200	-	Through Hole	0.551" L x 0.118" W (14.00mm x 3.00mm)	0.906" (23.00mm)	-	0.199" (5.05mm)
AHRL550 PTC RESET FUSE 5.5A 16V RAD Littelfuse Inc.	9,953	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, AHRL	Bulk	Active	Polymeric	16V	5.5 A	11 A	50 A	6 s	12 mOhms	22 mOhms	-	-40°C ~ 125°C	Automotive	AEC-Q200	-	Through Hole	0.370" L x 0.118" W (9.40mm x 3.00mm)	0.567" (14.40mm)	-	0.199" (5.05mm)
AHRL1500 PTC RESET FUSE 15A 16V RAD Littelfuse Inc.	3,590	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, AHRL	Bulk	Active	Polymeric	16V	15 A	30 A	100 A	18 s	2.9 mOhms	4.3 mOhms	-	-40°C ~ 125°C	Automotive	AEC-Q200	-	Through Hole	0.724" L x 0.142" W (18.40mm x 3.60mm)	1.039" (26.40mm)	-	0.400" (10.15mm)
LSP380 PTC RESET FUSE 16V 3.8A Littelfuse Inc.	9,687	-	RFQ	Datasheet	Strap	PolySwitch®, LSP	Bag	Active	Polymeric	16V	3.8 A	8 A	50 A	5 s	13 mOhms	37 mOhms	21 mOhms	-40°C ~ 85°C	Automotive	AEC-Q200	-	User Defined	0.787" L x 0.205" W (20.00mm x 5.20mm)	-	0.035" (0.90mm)	-
TRF600-150S PTC RESET FUSE 250V 150MA RADIAL Littelfuse Inc.	9,993	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, TRF600	Bag	Active	Polymeric	250V (600V Int)	150 mA	300 mA	40 A	4 s	6 Ohms	17 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.354" L x 0.181" W (9.00mm x 4.60mm)	0.492" (12.50mm)	-	0.197" (5.00mm)

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PTC Resettable Fuses FAQ

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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.

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Yes. Always review the manufacturer datasheet to confirm ratings, package, operating conditions and other technical details before finalizing a component for your design.

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