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
RLD60P250XF PTC RESET FUSE 60V 2.5A RADIAL Littelfuse Inc.	9,369	-	RFQ	Datasheet	Radial, Disc	POLY-FUSE®, RLD60	Tape & Box (TB)	Obsolete	Polymeric	60V	2.5 A	5 A	40 A	15.6 s	50 mOhms	130 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.839" Dia x 0.122" T (21.30mm x 3.10mm)	1.039" (26.40mm)	-	0.402" (10.20mm)
RLD60P300XF PTC RESET FUSE 60V 3A RADIAL Littelfuse Inc.	7,825	-	RFQ	Datasheet	Radial, Disc	POLY-FUSE®, RLD60	Tape & Box (TB)	Obsolete	Polymeric	60V	3 A	6 A	40 A	19.8 s	40 mOhms	100 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.980" Dia x 0.122" T (24.90mm x 3.10mm)	1.181" (30.00mm)	-	0.402" (10.20mm)
RLD60P375XF PTC RESET FUSE 60V 3.75A RADIAL Littelfuse Inc.	9,017	-	RFQ	Datasheet	Radial, Disc	POLY-FUSE®, RLD60	Tape & Box (TB)	Obsolete	Polymeric	60V	3.75 A	7.5 A	40 A	24 s	30 mOhms	80 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	1.118" Dia x 0.122" T (28.40mm x 3.10mm)	1.319" (33.50mm)	-	0.402" (10.20mm)
AHR1000 PTC RESET FUSE 16V 10A RADIAL Littelfuse Inc.	3,609	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, AHR	Bulk	Obsolete	Polymeric	16V	10 A	20.5 A	100 A	10.5 s	5.1 mOhms	10.5 mOhms	-	-40°C ~ 125°C	Automotive	AEC-Q200	-	Through Hole	0.689" L x 0.118" W (17.50mm x 3.00mm)	1.043" (26.50mm)	-	0.400" (10.15mm)
RUSB155 PTC RESET FUSE 6V 1.55A RADIAL Littelfuse Inc.	4,996	-	RFQ	Datasheet	Radial, Disc	PolySwitch®	Bulk	Obsolete	Polymeric	6V	1.55 A	2.65 A	40 A	2.2 s	40 mOhms	100 mOhms	-	-	-	-	-	Through Hole	0.272" Dia x 0.122" T (6.90mm x 3.10mm)	0.461" (11.70mm)	-	0.201" (5.10mm)
RTE120 PTC RESET FUSE 33V 1.2A RADIAL Littelfuse Inc.	4,154	-	RFQ	Datasheet	Radial, Disc	PolySwitch®	Bulk	Obsolete	Polymeric	33V	1.2 A	2.3 A	40 A	3.5 s	74 mOhms	180 mOhms	-	-	-	-	-	Through Hole	0.291" L x 0.118" W (7.40mm x 3.00mm)	0.480" (12.20mm)	-	0.199" (5.05mm)
RTE135 PTC RESET FUSE 33V 1.35A RADIAL Littelfuse Inc.	3,782	-	RFQ	Datasheet	Radial, Disc	PolySwitch®	Bulk	Obsolete	Polymeric	33V	1.35 A	2.5 A	40 A	4.5 s	59 mOhms	143 mOhms	-	-	-	-	-	Through Hole	0.291" L x 0.118" W (7.40mm x 3.00mm)	0.559" (14.20mm)	-	0.199" (5.05mm)
RTE190 PTC RESET FUSE 33V 1.9A RADIAL Littelfuse Inc.	4,450	-	RFQ	Datasheet	Radial, Disc	PolySwitch®	Bulk	Obsolete	Polymeric	33V	1.9 A	3 A	40 A	3.5 s	45 mOhms	92 mOhms	-	-	-	-	-	Through Hole	0.350" L x 0.118" W (8.90mm x 3.00mm)	0.532" (13.50mm)	-	0.199" (5.05mm)
HVR250P145CF PTC RESET FUSE 60V 145MA RADIAL Littelfuse Inc.	9,302	-	RFQ	Datasheet	Radial, Disc	POLY-FUSE®, HVR250	Tape & Box (TB)	Obsolete	Polymeric	60V (250V Int)	145 mA	290 mA	3 A	2.5 s	3 Ohms	14 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.236" Dia x 0.201" T (6.00mm x 5.10mm)	0.492" (12.50mm)	-	0.217" (5.50mm)
HVR250P120UF PTC RESET FUSE 60V 120MA RADIAL Littelfuse Inc.	3,040	-	RFQ	Datasheet	Radial, Disc	POLY-FUSE®, HVR250	Tape & Box (TB)	Obsolete	Polymeric	60V (250V Int)	120 mA	240 mA	3 A	1 s	6 Ohms	16 Ohms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.236" Dia x 0.201" T (6.00mm x 5.10mm)	0.394" (10.00mm)	-	0.217" (5.50mm)

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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.