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
HVR250P080CFF PTC RESET FUSE 60V 80MA RADIAL Littelfuse Inc.	8,271	-	RFQ	Datasheet	Radial, Disc	POLY-FUSE®, HVR250	Tape & Box (TB)	Obsolete	Polymeric	60V (250V Int)	80 mA	160 mA	3 A	3 s	14 Ohms	33 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.228" L x 0.201" W (5.80mm x 5.10mm)	0.429" (10.90mm)	-	0.217" (5.50mm)
LTP100F PTC RESET FUSE 24V 1A STRAP Littelfuse Inc.	9,870	-	RFQ	Datasheet	Strap	PolySwitch®, LTP	Bulk	Obsolete	Polymeric	24V	1 A	2.5 A	100 A	7 s	70 mOhms	260 mOhms	-	-40°C ~ 85°C	-	-	-	User Defined	0.866" L x 0.199" W (22.00mm x 5.05mm)	-	0.039" (1.00mm)	-
RLD30P090UFF PTC RESET FUSE 30V 900MA RADIAL Littelfuse Inc.	7,329	-	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)
RLD30P110UFF PTC RESET FUSE 30V 1.1A RADIAL Littelfuse Inc.	5,413	-	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)
RLD30P135UFF PTC RESET FUSE 30V 1.35A RADIAL Littelfuse Inc.	3,077	-	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)
RLD30P160UFF PTC RESET FUSE 30V 1.6A RADIAL Littelfuse Inc.	5,148	-	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)
RLD30P185UFF PTC RESET FUSE 30V 1.85A RADIAL Littelfuse Inc.	6,508	-	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)
RLD30P250UFF PTC RESET FUSE 30V 2.5A RADIAL Littelfuse Inc.	7,098	-	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)
RLD30P300UFF PTC RESET FUSE 30V 3A RADIAL Littelfuse Inc.	5,968	-	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)
RLD30P400UFF PTC RESET FUSE 30V 4A RADIAL Littelfuse Inc.	6,544	-	RFQ	Datasheet	Radial, Disc	POLY-FUSE®, RLD30	Tape & Box (TB)	Obsolete	Polymeric	30V	4 A	8 A	40 A	12.7 s	10 mOhms	50 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.551" L x 0.118" W (14.00mm x 3.00mm)	0.791" (20.10mm)	-	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.

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Yes. Send the exact manufacturer part number and required quantity for availability, lead-time and quotation support.

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Yes. You can submit a BOM or shortage list for sourcing assistance. Where appropriate, our team can also help review possible alternative-part options.