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 RHEF450
Datasheet
529In Stock
2 500Expected 9/30/2026
Min.: 1
Mult.: 1

RHEF PCB Mount Radial 4.5 A 16 VDC 7.8 A 100 A 54 mOhms - 40 C + 125 C 5.8 mm Bulk
Littelfuse Resettable Fuses - PPTC RHEF450-2
Datasheet
1 535In Stock
Min.: 1
Mult.: 1
: 1 500

RHEF PCB Mount Radial 4.5 A 16 VDC 7.8 A 100 A 54 mOhms - 40 C + 125 C 5.8 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC RHEF600
Datasheet
20In Stock
Min.: 1
Mult.: 1

RHEF PCB Mount Radial 6 A 16 VDC 10.8 A 100 A 320 mOhms - 40 C + 125 C 5.8 mm Bulk
Littelfuse Resettable Fuses - PPTC RHEF650-2
Datasheet
1 086In Stock
Min.: 1
Mult.: 1
: 1 500

RHEF PCB Mount Radial 6.5 A 16 VDC 12 A 100 A 26 mOhms - 40 C + 125 C 5.8 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC RHEF750
Datasheet
133In Stock
Min.: 1
Mult.: 1

RHEF PCB Mount Radial 7.5 A 16 VDC 13.1 A 100 A 22 mOhms - 40 C + 125 C 5.8 mm Bulk
Littelfuse Resettable Fuses - PPTC RHEF750-2
Datasheet
66In Stock
Min.: 1
Mult.: 1
: 1 000

RHEF PCB Mount Radial 7.5 A 16 VDC 13.1 A 100 A 22 mOhms - 40 C + 125 C 5.8 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC 8A 16V 20AWG 100A Imax
Datasheet
164In Stock
Min.: 1
Mult.: 1

RHEF PCB Mount Radial 8 A 16 VDC 15 A 100 A 20 mOhms - 40 C + 125 C 5.8 mm Bulk
Littelfuse Resettable Fuses - PPTC 60V 40A Ammo Pack Radial-leaded Device
Datasheet
1 950In Stock
Min.: 1
Mult.: 1
: 2 000

RKEF PCB Mount Radial 500 mA 60 VDC 1 A 40 A 900 mOhms - 40 C + 85 C 5.84 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC 60V 40A 1.25W Radial-leaded Device
Datasheet
497In Stock
Min.: 1
Mult.: 1

RKEF PCB Mount Radial 650 mA 60 VDC 1.3 A 40 A 450 mOhms - 40 C + 85 C 5.84 mm Bulk
Littelfuse Resettable Fuses - PPTC 60V 40A 1.40W Radial-leaded Device
Datasheet
388In Stock
1 000Expected 12/14/2026
Min.: 1
Mult.: 1

RKEF PCB Mount Radial 750 mA 60 VDC 1.5 A 40 A 390 mOhms - 40 C + 85 C 5.84 mm Bulk
Littelfuse Resettable Fuses - PPTC 60V 40A 0.39Ohms
Datasheet
2 169In Stock
Min.: 1
Mult.: 1
: 3 000

RKEF PCB Mount Radial 750 mA 60 VDC 1.5 A 40 A 390 mOhms - 40 C + 85 C 5.84 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC 60V 40A 1.50W Radial-leaded Device
Datasheet
1 509In Stock
Min.: 1
Mult.: 1

RKEF PCB Mount Radial 900 mA 60 VDC 1.8 A 40 A 520 mOhms - 40 C + 85 C 5.84 mm Bulk
Littelfuse Resettable Fuses - PPTC 60V 40A 2.40W Radial-leaded Device
Datasheet
1 242In Stock
Min.: 1
Mult.: 1

RKEF PCB Mount Radial 1.6 A 60 VDC 3.2 A 40 A 200 mOhms - 40 C + 85 C 5.84 mm Bulk
Littelfuse Resettable Fuses - PPTC 60V 40A 0.085Ohms
Datasheet
1 500In Stock
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 60V 40A 3.20W Radial-leaded Device
Datasheet
2 360In Stock
3 500Expected 10/19/2026
Min.: 1
Mult.: 1

RKEF PCB Mount Radial 3 A 60 VDC 6 A 40 A 80 mOhms - 40 C + 85 C 5.84 mm Bulk
Littelfuse Resettable Fuses - PPTC 50 mOhms 40 A 60 VDC - 40 C+ 85 C
Datasheet
2 149In Stock
Min.: 1
Mult.: 1
: 1 000

RKEF PCB Mount Radial 3 A 60 VDC 6 A 40 A 50 mOhms - 40 C + 85 C 5.84 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC 60V 40A 3.40W Radial-leaded Device
Datasheet
2 865In Stock
Min.: 1
Mult.: 1

RKEF PCB Mount Radial 3.75 A 60 VDC 7.5 A 40 A 40 mOhms - 40 C + 85 C 10.9 mm Bulk
Littelfuse Resettable Fuses - PPTC 60V 3.75A-HD 40A MAX
Datasheet
450In Stock
Min.: 1
Mult.: 1

RKEF PCB Mount Radial 3.75 A 60 VDC 7.5 A 40 A 40 mOhms - 40 C + 85 C 10.9 mm Bulk
Littelfuse Resettable Fuses - PPTC 60V 40A 3.70W Radial-leaded Device
Datasheet
1 815In Stock
6 500Expected 10/28/2026
Min.: 1
Mult.: 1

RKEF PCB Mount Radial 4 A 60 VDC 8 A 40 A 60 mOhms - 40 C + 85 C 10.9 mm Bulk
Littelfuse Resettable Fuses - PPTC RKEF500K-2
Datasheet
642In Stock
1 000Expected 9/1/2026
Min.: 1
Mult.: 1
: 1 000

RKEF + 85 C Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC .9A 30V 100A Imax
Datasheet
4 888In Stock
Min.: 1
Mult.: 1
: 3 000

RUEF PCB Mount Radial 900 mA 30 VDC 1.8 A 100 A 220 mOhms - 40 C + 85 C 5.8 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC 30V 900MA 100A RUEF
Datasheet
1 564In Stock
Min.: 1
Mult.: 1
: 2 000

RUEF PCB Mount Radial 900 mA 30 VDC 1.8 A 100 A 220 mOhms - 40 C + 85 C 5.8 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC 1.1A 30V 100A Imax
Datasheet
1 572In Stock
8 000Expected 10/13/2026
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 30V 1.1A-HD 100A RUEF
Datasheet
1 966In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 000

RUEF PCB Mount Radial 1.1 A 30 VDC 2.2 A 100 A 170 mOhms - 40 C + 85 C 5.8 mm Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 1.1A 30V 40A Imax
Datasheet
311In Stock
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