PTC Resettable Fuses

Browse available PTC Resettable Fuses part numbers with manufacturer references, stock information, pricing, datasheets and key specifications. Use the table below to compare options for your project.

For BOM, shortage or hard-to-find requirements, send your part number and quantity to Winsun (HK) Electronics for availability, lead-time and quotation support.

Compare Part Numbers Review available models and manufacturers

Datasheets & Specifications Access technical references quickly

RFQ & BOM Support Send quantities for sourcing and quotation

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
RUSB110 PTC RESET FUSE 16V 1.1A RADIAL Littelfuse Inc.	6,207	-	RFQ	Datasheet	Radial, Disc	PolySwitch®	Bulk	Obsolete	Polymeric	16V	1.1 A	2.2 A	40 A	2.3 s	50 mOhms	140 mOhms	-	-	-	-	-	Through Hole	0.291" L x 0.118" W (7.40mm x 3.00mm)	0.559" (14.20mm)	-	0.199" (5.05mm)
RUSB160 PTC RESET FUSE 16V 1.6A RADIAL Littelfuse Inc.	2,602	-	RFQ	Datasheet	Radial, Disc	PolySwitch®	Bulk	Obsolete	Polymeric	16V	1.6 A	3.2 A	40 A	9 s	300 mOhms	110 mOhms	-	-	-	-	-	Through Hole	0.350" L x 0.118" W (8.90mm x 3.00mm)	0.598" (15.20mm)	-	0.199" (5.05mm)
RUSB185 PTC RESET FUSE 16V 1.85A RADIAL Littelfuse Inc.	8,391	-	RFQ	Datasheet	Radial, Disc	PolySwitch®	Bulk	Obsolete	Polymeric	16V	1.85 A	3.7 A	40 A	10 s	30 mOhms	90 mOhms	-	-	-	-	-	Through Hole	0.402" L x 0.118" W (10.20mm x 3.00mm)	0.618" (15.70mm)	-	0.199" (5.05mm)
TR250-145-RA-C-0.5 PTC RESET FUSE 60V 145MA RADIAL Littelfuse Inc.	8,150	-	RFQ	Datasheet	Radial, Disc	PolySwitch®	Bulk	Obsolete	-	60V	145 mA	-	3 A	2.5 s	-	-	-	-	-	-	-	Through Hole	0.256" L x 0.181" W (6.50mm x 4.60mm)	0.433" (11.00mm)	-	0.197" (5.00mm)
RXE005 PTC RESET FUSE 60V 50MA RADIAL Littelfuse Inc.	5,577	-	RFQ	Datasheet	Radial, Disc	PolySwitch®, RXE	Bulk	Obsolete	Polymeric	60V	50 mA	100 mA	40 A	5 s	7.3 Ohms	20 Ohms	-	-	-	-	-	Through Hole	0.315" Dia x 0.118" T (8.00mm x 3.00mm)	0.327" (8.30mm)	-	0.199" (5.05mm)
PTSB-R100-V12 PTC RESET FUSE 12V 170MA 2SMD Amphenol Advanced Sensors (Thermometrics)	9,437	-	RFQ	Datasheet	2-SMD	PTSM	Bulk	Active	Ceramic	12V	170 mA	340 mA	-	-	-	-	10 Ohms	-	-	-	-	Surface Mount	0.300" L x 0.300" W (7.62mm x 7.62mm)	-	0.185" (4.70mm)	-
RGE1000 PTC RESET FUSE 16V 10A RADIAL Littelfuse Inc.	4,453	-	RFQ	Datasheet	Radial, Disc	PolySwitch®	Bulk	Obsolete	Polymeric	16V	10 A	17 A	100 A	6 s	4 mOhms	-	-	-	-	-	-	Through Hole	0.630" L x 0.098" W (16.00mm x 2.50mm)	0.992" (25.20mm)	-	0.199" (5.05mm)
RHE070 PTC RESET FUSE 16V 700MA RADIAL Littelfuse Inc.	7,956	-	RFQ	Datasheet	Radial, Disc	PolySwitch®	Bulk	Obsolete	Polymeric	16V	700 mA	1.4 A	40 A	4 s	300 mOhms	1.4 Ohms	-	-	-	-	-	Through Hole	0.272" L x 0.118" W (6.90mm x 3.00mm)	0.425" (10.80mm)	-	0.199" (5.05mm)
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)
RLD30P400UF PTC RESET FUSE 30V 4A RADIAL Littelfuse Inc.	8,725	-	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)
RLD30P500UF PTC RESET FUSE 30V 5A RADIAL Littelfuse Inc.	9,050	-	RFQ	Datasheet	Radial, Disc	POLY-FUSE®, RLD30	Tape & Box (TB)	Obsolete	Polymeric	30V	5 A	10 A	40 A	14.5 s	10 mOhms	50 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.551" L x 0.118" W (14.00mm x 3.00mm)	0.980" (24.90mm)	-	0.402" (10.20mm)

WINSUN SOURCING SUPPORT

Need PTC Resettable Fuses Sourcing Support?

Send the manufacturer, part number, quantity and target delivery requirement. Winsun (HK) Electronics can assist with availability checks, quotation support, shortage sourcing and hard-to-find or obsolete components.

Global component sourcing support BOM, shortage and EOL support

Send part number & quantity Request a Quote

Need sourcing assistance? Contact Sales

FREQUENTLY ASKED QUESTIONS

PTC Resettable Fuses FAQ

Common questions about selecting, comparing and sourcing PTC Resettable Fuses components through Winsun (HK) Electronics.

What should I check when selecting PTC Resettable Fuses components?

Compare the manufacturer part number, electrical specifications, package, operating conditions and application requirements. The product datasheet should be used to confirm technical suitability.

Can Winsun help source specific PTC Resettable Fuses part numbers?

Yes. Send the exact part number, manufacturer and required quantity. Winsun (HK) Electronics can assist with availability checks, quotation support and sourcing options based on your requirement.

Do you support shortage, obsolete or hard-to-find PTC Resettable Fuses parts?

Yes. Our sourcing team can review shortage and obsolete-part requirements and help check available supply channels or possible alternatives when appropriate.

How do I request a quote for PTC Resettable Fuses components?

Submit an RFQ with the part number, manufacturer, quantity and target delivery requirement. Our sales team will review your request and follow up with current sourcing information.