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
RHE400 PTC RESET FUSE 16V 4A RADIAL Littelfuse Inc.	8,419	-	RFQ	Datasheet	Radial, Disc	PolySwitch®	Bulk	Obsolete	Polymeric	16V	4 A	7 A	100 A	8 s	18 mOhms	44 mOhms	-	-	-	-	-	Through Hole	0.449" L x 0.118" W (11.40mm x 3.00mm)	0.709" (18.00mm)	-	0.199" (5.05mm)
RHE650 PTC RESET FUSE 16V 6.5A RADIAL Littelfuse Inc.	8,230	-	RFQ	Datasheet	Radial, Disc	PolySwitch®	Bulk	Obsolete	Polymeric	16V	6.5 A	12 A	100 A	5.5 s	11 mOhms	4.3 Ohms	-	-	-	-	-	Through Hole	0.500" L x 0.118" W (12.70mm x 3.00mm)	0.874" (22.20mm)	-	0.199" (5.05mm)
RHE1500 PTC RESET FUSE 16V 15A RADIAL Littelfuse Inc.	5,893	-	RFQ	Datasheet	Radial, Disc	PolySwitch®	Bulk	Obsolete	Polymeric	16V	15 A	28 A	100 A	20 s	3.2 mOhms	-	-	-	-	-	-	Through Hole	0.925" L x 0.142" W (23.50mm x 3.60mm)	1.130" (28.70mm)	-	0.400" (10.15mm)
RLD30P090UF PTC RESET FUSE 30V 900MA RADIAL Littelfuse Inc.	2,775	-	RFQ	Datasheet	Radial, Disc	POLY-FUSE®, RLD30	Tape & Box (TB)	Obsolete	Polymeric	30V	900 mA	1.8 A	40 A	5.9 s	70 mOhms	220 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.291" L x 0.118" W (7.40mm x 3.00mm)	0.480" (12.20mm)	-	0.201" (5.10mm)
RLD30P110UF PTC RESET FUSE 30V 1.1A RADIAL Littelfuse Inc.	2,197	-	RFQ	Datasheet	Radial, Disc	POLY-FUSE®, RLD30	Tape & Box (TB)	Obsolete	Polymeric	30V	1.1 A	2.2 A	40 A	6.6 s	50 mOhms	170 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.291" L x 0.118" W (7.40mm x 3.00mm)	0.559" (14.20mm)	-	0.201" (5.10mm)
RLD30P135UF PTC RESET FUSE 30V 1.35A RADIAL Littelfuse Inc.	8,659	-	RFQ	Datasheet	Radial, Disc	POLY-FUSE®, RLD30	Tape & Box (TB)	Obsolete	Polymeric	30V	1.35 A	2.7 A	40 A	7.3 s	40 mOhms	130 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.350" L x 0.118" W (8.90mm x 3.00mm)	0.532" (13.50mm)	-	0.201" (5.10mm)
RLD30P160UF PTC RESET FUSE 30V 1.6A RADIAL Littelfuse Inc.	2,705	-	RFQ	Datasheet	Radial, Disc	POLY-FUSE®, RLD30	Tape & Box (TB)	Obsolete	Polymeric	30V	1.6 A	3.2 A	40 A	8 s	30 mOhms	110 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.350" L x 0.118" W (8.90mm x 3.00mm)	0.598" (15.20mm)	-	0.201" (5.10mm)
RLD30P185UF PTC RESET FUSE 30V 1.85A RADIAL Littelfuse Inc.	9,550	-	RFQ	Datasheet	Radial, Disc	POLY-FUSE®, RLD30	Tape & Box (TB)	Obsolete	Polymeric	30V	1.85 A	3.7 A	40 A	8.7 s	30 mOhms	90 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.402" L x 0.118" W (10.20mm x 3.00mm)	0.618" (15.70mm)	-	0.201" (5.10mm)
RLD30P250UF PTC RESET FUSE 30V 2.5A RADIAL Littelfuse Inc.	5,635	-	RFQ	Datasheet	Radial, Disc	POLY-FUSE®, RLD30	Tape & Box (TB)	Obsolete	Polymeric	30V	2.5 A	5 A	40 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)	-	0.201" (5.10mm)
RLD30P300UF PTC RESET FUSE 30V 3A RADIAL Littelfuse Inc.	5,526	-	RFQ	Datasheet	Radial, Disc	POLY-FUSE®, RLD30	Tape & Box (TB)	Obsolete	Polymeric	30V	3 A	6 A	40 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)	0.681" (17.30mm)	-	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.