Radial-Leaded PolySwitch Resettable PPTCs

Littelfuse Radial-Leaded Resettable PPTCs are designed to provide overcurrent protection for applications where space is not a concern, and resettable protection is preferred. With so many options in the radial-leaded PPTCs family, engineers can design with more flexibility. The components feature current ratings from 50mA to 15A, low resistance, and a fast time-to-trip. Higher voltage ratings (6V to 72V) allow for use in new applications. Littelfuse Radial-Leaded Resettable PPTCs are compatible with high-volume electronics assembly and can assist in meeting regulatory requirements.

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Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Mounting Style
Termination Style
Hold Current
Maximum Voltage
Trip Current
Current Rating - Max
Resistance
Minimum Operating Temperature
Maximum Operating Temperature
Lead Spacing
Qualification
Packaging
Littelfuse Resettable Fuses - PPTC Polyswitch 3.7A 1 inch lead
Datasheet
Product Comments
233In Stock
Min.: 1
Mult.: 1

RXEF PCB Mount Radial 1.85 A 72 VDC 3.7 A 40 A 190 mOhms - 40 C + 85 C 5.8 mm Bulk
Littelfuse Resettable Fuses - PPTC Radial Lead 1.85A 72V 40A Imax
Datasheet
Product Comments
1,743In Stock
Min.: 1
Mult.: 1
Reel: 1,500

RXEF PCB Mount Radial 1.85 A 72 VDC 3.7 A 40 A 190 mOhms - 40 C + 85 C 5.8 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC 1.85A 72V 40A Imax
Datasheet
Product Comments
500In Stock
Min.: 1
Mult.: 1
Reel: 1,000

RXEF PCB Mount Radial 1.85 A 72 VDC 3.7 A 40 A 190 mOhms - 40 C + 85 C 5.8 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC Radial Lead 1.85A 72V 40A Imax
Datasheet
Product Comments
248In Stock
Min.: 1
Mult.: 1

RXEF PCB Mount Radial 1.85 A 72 VDC 3.7 A 40 A 190 mOhms - 40 C + 85 C 5.8 mm Bulk
Littelfuse Resettable Fuses - PPTC Radial Lead 2.5A 72V 40A Imax
Datasheet
Product Comments
822In Stock
1,000Expected 14/05/2026
Min.: 1
Mult.: 1
Reel: 1,000

RXEF PCB Mount Radial 2.5 A 72 VDC 5 A 40 A 130 mOhms - 40 C + 85 C 10.9 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC Polyswitch 3.7A
Datasheet
Product Comments
1,655In Stock
Min.: 1
Mult.: 1
Reel: 1,000

RXEF PCB Mount Radial 2.5 A 72 VDC 5 A 40 A 130 mOhms - 40 C + 85 C 10.9 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC Radial Lead 2.5A 72V 40A Imax
Datasheet
Product Comments
2,548In Stock
Min.: 1
Mult.: 1

RXEF PCB Mount Radial 2.5 A 72 VDC 5 A 40 A 130 mOhms - 40 C + 85 C 10.9 mm Bulk
Littelfuse Resettable Fuses - PPTC 3A 72V 40A Imax
Datasheet
Product Comments
210In Stock
Min.: 1
Mult.: 1

RXEF PCB Mount Radial 3 A 72 VDC 6 A 40 A 100 mOhms - 40 C + 85 C 10.9 mm Bulk
Littelfuse Resettable Fuses - PPTC Radial Lead 3A 72V 40A Imax
Datasheet
Product Comments
2,720In Stock
Min.: 1
Mult.: 1
Reel: 1,000

RXEF PCB Mount Radial 3 A 72 VDC 6 A 40 A 100 mOhms - 40 C + 85 C 10.9 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC 40A 72V 2Pin Ammo Pk PolySwitch Reset De
Datasheet
Product Comments
851In Stock
Min.: 1
Mult.: 1
Reel: 1,000

RXEF PCB Mount Radial 3 A 72 VDC 6 A 40 A 100 mOhms - 40 C + 85 C 10.9 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC Radial Lead 3A 72V 40A Imax
Datasheet
Product Comments
199In Stock
Min.: 1
Mult.: 1

RXEF PCB Mount Radial 3 A 72 V 6 A 40 A 100 mOhms - 40 C + 85 C Bulk
Littelfuse Resettable Fuses - PPTC 3A 72V 40A Imax
Datasheet
Product Comments
1,595In Stock
Min.: 1
Mult.: 1
Reel: 1,000

RXEF PCB Mount Radial 3 A 72 V 6 A 40 A 100 mOhms - 40 C + 85 C Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC Radial Lead 3.75A 72V 40A Imax
Datasheet
Product Comments
1,278In Stock
Min.: 1
Mult.: 1

RXEF PCB Mount Radial 3.75 A 72 VDC 7.5 A 40 A 80 mOhms - 40 C + 85 C 10.9 mm Bulk
Littelfuse Resettable Fuses - PPTC 30V 4A 12.7s
Datasheet
603In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

30R PCB Mount Radial 4 A 30 VDC 8 A 40 A 50 mOhms - 40 C + 85 C 5.1 mm Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 60V 1.35A RADIAL LEADS
Datasheet
2,996On Order
Min.: 1
Mult.: 1
Reel: 1,000

60R PCB Mount Radial 1.35 A 60 VDC 2.7 A 40 A 300 mOhms - 40 C + 85 C 5.1 mm Ammo Pack
Littelfuse Resettable Fuses - PPTC 60V POLYFUSE 3A RADIAL LEADS
Datasheet
4,559Expected 28/05/2026
Min.: 1
Mult.: 1

60R PCB Mount Radial 3 A 60 VDC 6 A 40 A 100 mOhms - 40 C + 85 C 10.2 mm Bulk
Littelfuse Resettable Fuses - PPTC 7A 16V RAD Leaded AEC-Q200
Datasheet
2In Stock
Min.: 1
Mult.: 1
Reel: 1,500

AGRF PCB Mount Radial 7 A 16 VDC 13.2 A 100 A 22 mOhms - 40 C + 85 C 5.8 mm AEC-Q100 Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC RGEF500K
Datasheet
2In Stock
Min.: 1
Mult.: 1

RGEF PCB Mount Radial 5 A 16 VDC 8.5 A 100 A 34 mOhms - 40 C + 85 C 5.8 mm Bulk
Littelfuse Resettable Fuses - PPTC 1.1A 30V 100A Imax
Datasheet
18,962Expected 08/04/2026
Min.: 1
Mult.: 1

RUEF PCB Mount Radial 1.1 A 30 VDC 2.2 A 100 A 170 mOhms - 40 C + 85 C 5.8 mm Bulk
Littelfuse Resettable Fuses - PPTC 9A 30V 40A Imax
Datasheet
3,000Expected 06/04/2026
Min.: 1
Mult.: 1

RUEF PCB Mount Radial 9 A 30 VDC 18 A 100 A 20 mOhms - 40 C + 85 C 10.9 mm Bulk
Littelfuse Resettable Fuses - PPTC RGEF700
Datasheet
1,201Expected 06/04/2026
Min.: 1
Mult.: 1

RGEF PCB Mount Radial 7 A 16 VDC 11.9 A 100 A 20 mOhms - 40 C + 85 C 5.8 mm Bulk
Littelfuse Resettable Fuses - PPTC RHEF1000-2
Datasheet
1,878Expected 23/03/2026
Min.: 1
Mult.: 1
Reel: 1,000

RHEF PCB Mount Radial 10 A 16 VDC 18.5 A 100 A 15 mOhms - 40 C + 125 C 10.9 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC RHEF1300-2
Datasheet
849Expected 19/05/2026
Min.: 1
Mult.: 1
Reel: 1,000

RHEF PCB Mount Radial 13 A 16 VDC 24 A 100 A 10 mOhms - 40 C + 125 C 10.9 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC 60V 40A 0.085Ohms
Datasheet
1,500Expected 28/05/2026
Min.: 1
Mult.: 1

RKEF PCB Mount Radial 2.5 A 60 VDC 5 A 40 A 85 mOhms - 40 C + 85 C 5.84 mm Bulk
Littelfuse Resettable Fuses - PPTC 80 mOhms 40 A 30 VDC - 40 C+ 85 C
Datasheet
490Expected 19/05/2026
Min.: 1
Mult.: 1

RUEF PCB Mount Radial 3 A 30 VDC 6 A 40 A 80 mOhms - 40 C + 85 C 5.8 mm Bulk