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
RHEF750 PTC RESET FUSE 16V 7.5A RADIAL Littelfuse Inc.	500	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RHEF	Bag	Active	Polymeric	16V	7.5 A	13.1 A	100 A	7 s	9.4 mOhms	22 mOhms	-	-40°C ~ 125°C	-	-	-	Through Hole	0.551" L x 0.118" W (14.00mm x 3.00mm)	0.925" (23.50mm)	-	0.199" (5.05mm)
RUEF700K PTC RESET FUSE 30V 7A RADIAL Littelfuse Inc.	280	-	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)	1.091" (27.70mm)	-	0.400" (10.15mm)
RXEF250K-2 PTC RESET FUSE 72V 2.5A RADIAL Littelfuse Inc.	1,843	-	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)
RGEF1100-2 PTC RESET FUSE 16V 11A RADIAL Littelfuse Inc.	359	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RGEF	Tape & Reel (TR)	Active	Polymeric	16V	11 A	18.7 A	100 A	7 s	3.7 mOhms	8.9 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.669" L x 0.098" W (17.00mm x 2.50mm)	1.024" (26.00mm)	-	0.199" (5.05mm)
AHRL650 PTC RESET FUSE 6.5A 16V RAD Littelfuse Inc.	4,694	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, AHRL	Bulk	Active	Polymeric	16V	6.5 A	13 A	50 A	6.5 s	9.5 mOhms	15 mOhms	-	-40°C ~ 125°C	Automotive	AEC-Q200	-	Through Hole	0.421" L x 0.118" W (10.70mm x 3.00mm)	0.685" (17.40mm)	-	0.199" (5.05mm)
AHRL900 PTC RESET FUSE 9A 16V RAD Littelfuse Inc.	4,551	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, AHRL	Bulk	Active	Polymeric	16V	9 A	18 A	100 A	9 s	4.6 mOhms	7.5 mOhms	-	-40°C ~ 125°C	Automotive	AEC-Q200	-	Through Hole	0.567" L x 0.142" W (14.40mm x 3.60mm)	0.843" (21.40mm)	-	0.400" (10.15mm)
RXEF300K-2 PTC RESET FUSE 72V 3A RADIAL Littelfuse Inc.	1,075	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RXEF	Tape & Reel (TR)	Active	Polymeric	72V	3 A	6 A	40 A	19.8 s	40 mOhms	100 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.910" Dia x 0.118" T (23.11mm x 3.00mm)	1.154" (29.30mm)	-	0.400" (10.15mm)
TRF600-150-B-0.5 PTC RESET FUSE 250V 150MA RADIAL Littelfuse Inc.	1,000	-	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)
RUEF900K-2 PTC RESET FUSE 30V 9A RADIAL Littelfuse Inc.	1,000	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RUEF	Tape & Reel (TR)	Active	Polymeric	30V	9 A	18 A	100 A	20 s	5 mOhms	20 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.949" L x 0.118" W (24.10mm x 3.00mm)	1.220" (31.00mm)	-	0.400" (10.15mm)
16R900GF PTC RESET FUSE 16V 9A RADIAL Littelfuse Inc.	3,292	-	RFQ	Datasheet	Radial, Disc	POLY-FUSE®, 16R	Bulk	Active	Polymeric	16V	9 A	15.3 A	100 A	5.5 s	4.7 mOhms	13.5 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.551" L x 0.118" W (14.00mm x 3.00mm)	0.854" (21.70mm)	-	0.201" (5.10mm)

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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.