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 9A 30V 40A Imax
Datasheet
579In Stock
1,000Expected 18/05/2026
Min.: 1
Mult.: 1
Reel: 1,000

RUEF PCB Mount Radial 9 A 30 VDC 18 A 100 A 20 mOhms - 40 C + 85 C 10.9 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC Radial Lead .75A 6V 40A Imax
Datasheet
170In Stock
3,000On Order
Min.: 1
Mult.: 1
Reel: 3,000

RUSBF PCB Mount Radial 750 mA 6 VDC 1.3 A 40 A 230 mOhms - 40 C + 85 C 5.9 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC Polyswitch 1.3A 6V
Datasheet
886In Stock
Min.: 1
Mult.: 1
Reel: 2,000

RUSBF PCB Mount Radial 750 mA 6 VDC 1.3 A 40 A 230 mOhms - 40 C + 85 C 5.9 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC Radial Lead .9A 16V 40A Imax
Datasheet
1,050In Stock
Min.: 1
Mult.: 1

RUSBF PCB Mount Radial 900 mA 16 VDC 1.8 A 40 A 180 mOhms - 40 C + 85 C 5.8 mm Bulk
Littelfuse Resettable Fuses - PPTC Radial Lead 1.1A 16V 40A Imax
Datasheet
2,041In Stock
Min.: 1
Mult.: 1

RUSBF PCB Mount Radial 1.1 A 16 VDC 2.2 A 40 A 140 mOhms - 40 C + 85 C 5.8 mm Bulk
Littelfuse Resettable Fuses - PPTC Radial Lead 1.1A 16V 40A Imax
Datasheet
4,237In Stock
Min.: 1
Mult.: 1
Reel: 3,000

RUSBF PCB Mount Radial 1.1 A 16 VDC 2.2 A 40 A 140 mOhms - 40 C + 85 C 5.8 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC Radial Lead 1.2A 6V 40A Imax
Datasheet
430In Stock
Min.: 1
Mult.: 1

RUSBF PCB Mount Radial 1.2 A 6 VDC 2 A 40 A 140 mOhms - 40 C + 85 C 5.9 mm Bulk
Littelfuse Resettable Fuses - PPTC Radial Lead 1.35A 16V 40A Imax
Datasheet
583In Stock
Min.: 1
Mult.: 1

RUSBF PCB Mount Radial 1.35 A 16 VDC 2.7 A 40 A 120 mOhms - 40 C + 85 C 5.8 mm Bulk
Littelfuse Resettable Fuses - PPTC Radial Lead 1.35A 16V 40A Imax
Datasheet
1,061In Stock
Min.: 1
Mult.: 1
Reel: 3,000

RUSBF PCB Mount Radial 1.35 A 16 VDC 2.7 A 40 A 120 mOhms - 40 C + 85 C 5.8 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC 6V 40A 0.60W PolySwitch Reset Dev
Datasheet
1,946In Stock
Min.: 1
Mult.: 1
Reel: 2,000

RUSBF PCB Mount Radial 1.55 A 6 V 2.65 A 40 A 100 mOhms - 40 C + 85 C Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC Radial Lead 1.6A 16V 40A Imax
Datasheet
132In Stock
Min.: 1
Mult.: 1

RUSBF PCB Mount Radial 1.6 A 16 VDC 3.2 A 40 A 110 mOhms - 40 C + 85 C 5.8 mm Bulk
Littelfuse Resettable Fuses - PPTC Radial Lead 1.85A 16V 40A Imax
Datasheet
475In Stock
Min.: 1
Mult.: 1

RUSBF PCB Mount Radial 1.85 A 16 VDC 3.7 A 40 A 90 mOhms - 40 C + 85 C 5.8 mm Bulk
Littelfuse Resettable Fuses - PPTC Radial Lead 2.5A 16V 40A Imax
Datasheet
535In Stock
Min.: 1
Mult.: 1

RUSBF PCB Mount Radial 2.5 A 16 VDC 5 A 40 A 60 mOhms - 40 C + 85 C 5.8 mm Bulk
Littelfuse Resettable Fuses - PPTC Polyswitch 0.2A 60V
Datasheet
Product Comments
379In Stock
Min.: 1
Mult.: 1

RXEF PCB Mount Radial 100 mA 60 VDC 200 mA 40 A 7.5 Ohms - 40 C + 85 C 5.8 mm Bulk
Littelfuse Resettable Fuses - PPTC Radial Lead .1A 60V 40A Imax
Datasheet
Product Comments
5,288In Stock
Min.: 1
Mult.: 1
Reel: 3,000

RXEF PCB Mount Radial 100 mA 60 VDC 200 mA 40 A 7.5 Ohms - 40 C + 85 C 5.8 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC .1A 60V 40A Imax
Datasheet
Product Comments
965In Stock
Min.: 1
Mult.: 1
Reel: 2,000

RXEF PCB Mount Radial 100 mA 60 VDC 200 mA 40 A 7.5 Ohms - 40 C + 85 C 5.8 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC Radial Lead .1A 60V 40A Imax
Datasheet
Product Comments
501In Stock
Min.: 1
Mult.: 1

RXEF PCB Mount Radial 100 mA 60 VDC 200 mA 40 A 7.5 Ohms - 40 C + 85 C 5.8 mm Bulk
Littelfuse Resettable Fuses - PPTC Radial Lead .17A 60V 40A Imax
Datasheet
Product Comments
6,069In Stock
13,500On Order
Min.: 1
Mult.: 1

RXEF PCB Mount Radial 170 mA 60 VDC 340 mA 40 A 8 Ohms - 40 C + 85 C 5.8 mm Bulk
Littelfuse Resettable Fuses - PPTC Radial Lead .17A 60V 40A Imax
Datasheet
Product Comments
3,012In Stock
Min.: 1
Mult.: 1
Reel: 2,500

RXEF PCB Mount Radial 170 mA 60 VDC 340 mA 40 A 8 Ohms - 40 C + 85 C 5.8 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC Radial Lead .2A 72V 40A Imax
Datasheet
Product Comments
1,710In Stock
Min.: 1
Mult.: 1
Reel: 3,000

RXEF PCB Mount Radial 200 mA 72 VDC 400 mA 40 A 4.4 Ohms - 40 C + 85 C 5.8 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC 72V 200MA 40A RXEF
Datasheet
Product Comments
1,680In Stock
Min.: 1
Mult.: 1
Reel: 2,000

RXEF PCB Mount Radial 200 mA 72 VDC 400 mA 40 A 4.4 Ohms - 40 C + 85 C 5.8 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC Radial Lead .2A 72V 40A Imax
Datasheet
Product Comments
877In Stock
Min.: 1
Mult.: 1

RXEF PCB Mount Radial 200 mA 72 VDC 400 mA 40 A 4.4 Ohms - 40 C + 85 C 5.8 mm Bulk
Littelfuse Resettable Fuses - PPTC Radial Lead .2A 72V 40A Imax
Datasheet
Product Comments
1,735In Stock
Min.: 1
Mult.: 1
Reel: 3,000

RXEF PCB Mount Radial 200 mA 72 VDC 400 mA 40 A 4.4 Ohms - 40 C + 85 C 5.8 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC Radial Lead .3A 72V 40A Imax
Datasheet
Product Comments
5,149In Stock
Min.: 1
Mult.: 1
Reel: 3,000

RXEF PCB Mount Radial 300 mA 72 VDC 600 mA 40 A 2.1 Ohms - 40 C + 85 C 5.8 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC 72V 300MA 40A RXEF
Datasheet
Product Comments
2,609In Stock
Min.: 1
Mult.: 1
Reel: 2,000

RXEF PCB Mount Radial 300 mA 72 VDC 600 mA 40 A 2.1 Ohms - 40 C + 85 C 5.8 mm Reel, Cut Tape