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 5A 32V High Temp AEC-Q200
Datasheet
13,149In Stock
Min.: 1
Mult.: 1

AHEF PCB Mount Radial 5 A 32 VDC 10 A 100 A 40 mOhms - 40 C + 85 C 5.8 mm AEC-Q100 Bulk
Littelfuse Resettable Fuses - PPTC 60V 40A 2.20W Radial-leaded Device
Datasheet
6,654In Stock
Min.: 1
Mult.: 1

RKEF PCB Mount Radial 1.1 A 60 VDC 2.2 A 40 A 470 mOhms - 40 C + 85 C 5.84 mm Bulk
Littelfuse Resettable Fuses - PPTC 60V 40A 2.30W Radial-leaded Device
Datasheet
10,434In Stock
Min.: 1
Mult.: 1

RKEF PCB Mount Radial 1.35 A 60 VDC 2.7 A 40 A 370 mOhms - 40 C + 85 C 5.84 mm Bulk
Littelfuse Resettable Fuses - PPTC 60V 40A 2.80W Radial-leaded Device
Datasheet
5,955In 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 0.03Ohms
Datasheet
7,701In Stock
Min.: 1
Mult.: 1

RKEF PCB Mount Radial 5 A 60 VDC 10 A 40 A 30 mOhms - 40 C + 85 C 10.9 mm Bulk
Littelfuse Resettable Fuses - PPTC .9A 30V 100A Imax
Datasheet
10,300In Stock
8,000Expected 19/02/2026
Min.: 1
Mult.: 1

RUEF PCB Mount Radial 900 mA 30 VDC 1.8 A 100 A 220 mOhms - 40 C + 85 C 5.8 mm Bulk
Littelfuse Resettable Fuses - PPTC 1.1A 30V 100A Imax
Datasheet
9,246In Stock
Min.: 1
Mult.: 1
Reel: 3,000

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
Littelfuse Resettable Fuses - PPTC 1.35A 30V 100A Imax
Datasheet
7,619In Stock
4,000Expected 19/02/2026
Min.: 1
Mult.: 1

RUEF PCB Mount Radial 1.35 A 30 VDC 2.7 A 100 A 130 mOhms - 40 C + 85 C 5.8 mm Bulk
Littelfuse Resettable Fuses - PPTC 1.6A 30V 100A Imax
Datasheet
11,924In Stock
Min.: 1
Mult.: 1

RUEF PCB Mount Radial 1.6 A 30 VDC 3.2 A 100 A 110 mOhms - 40 C + 85 C 5.8 mm Bulk
Littelfuse Resettable Fuses - PPTC 1.85A 30V 100A Imax
Datasheet
25,719In Stock
Min.: 1
Mult.: 1

RUEF PCB Mount Radial 1.85 A 30 VDC 3.7 A 100 A 90 mOhms - 40 C + 85 C 5.8 mm Bulk
Littelfuse Resettable Fuses - PPTC 3A 30V 100A Imax
Datasheet
25,657In Stock
Min.: 1
Mult.: 1

RUEF PCB Mount Radial 3 A 30 VDC 6 A 100 A 80 mOhms - 40 C + 85 C 5.8 mm Bulk
Littelfuse Resettable Fuses - PPTC 4A 30V 100A Imax
Datasheet
16,131In Stock
Min.: 1
Mult.: 1

RUEF PCB Mount Radial 4 A 30 VDC 8 A 100 A 50 mOhms - 40 C + 85 C 5.8 mm Bulk
Littelfuse Resettable Fuses - PPTC 5A 30V 100A Imax
Datasheet
6,328In Stock
Min.: 1
Mult.: 1

RUEF PCB Mount Radial 5 A 30 VDC 10 A 100 A 50 mOhms - 40 C + 85 C 10.9 mm Bulk
Littelfuse Resettable Fuses - PPTC 6A 30V 100A Imax
Datasheet
6,513In Stock
Min.: 1
Mult.: 1

RUEF PCB Mount Radial 6 A 30 VDC 12 A 100 A 40 mOhms - 40 C + 85 C 10.9 mm Bulk
Littelfuse Resettable Fuses - PPTC 9A 30V 100A Imax
Datasheet
4,182In Stock
3,991Expected 24/03/2026
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 .05A 60V 40A Imax
Datasheet
Product Comments
17,350In Stock
Min.: 1
Mult.: 1

RXEF PCB Mount Radial 50 mA 60 VDC 100 mA 40 A 20 Ohms - 40 C + 85 C 5.8 mm Bulk
Littelfuse Resettable Fuses - PPTC Radial Lead .05A 60V 40A Imax
Datasheet
Product Comments
18,899In Stock
Min.: 1
Mult.: 1
Reel: 3,000

RXEF PCB Mount Radial 50 mA 60 VDC 100 mA 40 A 20 Ohms - 40 C + 85 C 5.8 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC Radial Lead .1A 60V 40A Imax
Datasheet
Product Comments
16,099In 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 .2A 72V 40A Imax
Datasheet
Product Comments
11,308In Stock
10,000Expected 19/02/2026
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 .25A 72V 40A Imax
Datasheet
Product Comments
16,331In Stock
Min.: 1
Mult.: 1

RXEF PCB Mount Radial 250 mA 72 VDC 500 mA 40 A 3 Ohms - 40 C + 85 C 5.8 mm Bulk
Littelfuse Resettable Fuses - PPTC Radial Lead .25A 72V 40A Imax
Datasheet
Product Comments
8,093In Stock
Min.: 1
Mult.: 1
Reel: 3,000

RXEF PCB Mount Radial 250 mA 72 VDC 500 mA 40 A 3 Ohms - 40 C + 85 C 5.8 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC Radial Lead .3A 72V 40A Imax
Datasheet
Product Comments
13,018In Stock
Min.: 1
Mult.: 1

RXEF PCB Mount Radial 300 mA 72 VDC 600 mA 40 A 2.1 Ohms - 40 C + 85 C 5.8 mm Bulk
Littelfuse Resettable Fuses - PPTC Radial Lead .5A 72V 40A Imax
Datasheet
Product Comments
40,466In Stock
Min.: 1
Mult.: 1

RXEF PCB Mount Radial 500 mA 72 VDC 1 A 40 A 1.17 Ohms - 40 C + 85 C 5.8 mm Bulk
Littelfuse Resettable Fuses - PPTC Radial Lead .5A 72V 40A Imax
Datasheet
Product Comments
14,742In Stock
Min.: 1
Mult.: 1
Reel: 3,000

RXEF PCB Mount Radial 500 mA 72 VDC 1 A 40 A 1.17 Ohms - 40 C + 85 C 5.8 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC Radial Lead .75A 72V 40A Imax
Datasheet
Product Comments
15,682In Stock
Min.: 1
Mult.: 1

RXEF PCB Mount Radial 750 mA 72 VDC 1.5 A 40 A 600 mOhms - 40 C + 85 C 5.8 mm Bulk