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 (USD) 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 1.60A POLYFUSE RADIAL LEADS
Datasheet
2,573In Stock
Min.: 1
Mult.: 1

30R PCB Mount Radial 1.6 A 30 VDC 3.2 A 40 A 110 mOhms - 40 C + 85 C 5.1 mm Bulk
Littelfuse Resettable Fuses - PPTC 30V 1.85A RADIAL LEADS
Datasheet
3,958In Stock
Min.: 1
Mult.: 1
Reel: 2,000

30R PCB Mount Radial 1.85 A 30 VDC 3.7 A 40 A 90 mOhms - 40 C + 85 C 5.1 mm Ammo Pack
Littelfuse Resettable Fuses - PPTC PTC 30V 1.85A POLY RADIAL LEADS
Datasheet
2,058In Stock
Min.: 1
Mult.: 1

30R PCB Mount Radial 1.85 A 30 VDC 3.7 A 40 A 90 mOhms - 40 C + 85 C 5.1 mm Bulk
Littelfuse Resettable Fuses - PPTC 30V 2.50A RADIAL LEADS
Datasheet
4,693In Stock
Min.: 1
Mult.: 1
Reel: 2,000

30R PCB Mount Radial 2.5 A 30 VDC 5 A 40 A 70 mOhms - 40 C + 85 C 5.1 mm Ammo Pack
Littelfuse Resettable Fuses - PPTC 30V POLYFUSE 2.50A RADIAL LEADS
Datasheet
523In Stock
2,000Expected 08/04/2026
Min.: 1
Mult.: 1

30R PCB Mount Radial 2.5 A 30 VDC 5 A 40 A 70 mOhms - 40 C + 85 C 5.1 mm Bulk
Littelfuse Resettable Fuses - PPTC 30V POLYFUSE 3A RADIAL LEADS
Datasheet
3,282In Stock
Min.: 1
Mult.: 1
Reel: 2,000

30R PCB Mount Radial 3 A 30 VDC 6 A 40 A 80 mOhms - 40 C + 85 C 5.1 mm Ammo Pack
Littelfuse Resettable Fuses - PPTC 30V POLYFUSE 3A RADIAL LEADS
Datasheet
2,411In Stock
Min.: 1
Mult.: 1

30R PCB Mount Radial 3 A 30 VDC 6 A 40 A 80 mOhms - 40 C + 85 C 5.1 mm Bulk
Littelfuse Resettable Fuses - PPTC 30V POLYFUSE 4A RADIAL LEADS
Datasheet
9In Stock
1,000On Order
Min.: 1
Mult.: 1

30R PCB Mount Radial 4 A 30 VDC 8 A 40 A 50 mOhms - 40 C + 85 C 5.1 mm Bulk
Littelfuse Resettable Fuses - PPTC 30V POLYFUSE 5A RADIAL LEADS
Datasheet
1,835In Stock
2,000Expected 06/04/2026
Min.: 1
Mult.: 1
Reel: 1,000

30R PCB Mount Radial 5 A 30 VDC 10 A 40 A 50 mOhms - 40 C + 85 C 10.2 mm Ammo Pack
Littelfuse Resettable Fuses - PPTC 30V 6A RADIAL LEADS
Datasheet
1,147In Stock
Min.: 1
Mult.: 1
Reel: 1,000

30R PCB Mount Radial 6 A 30 VDC 12 A 40 A 40 mOhms - 40 C + 85 C 10.2 mm Ammo Pack
Littelfuse Resettable Fuses - PPTC 30V 8A 18.8s Radial leads
Datasheet
640In Stock
Min.: 1
Mult.: 1

30R PCB Mount Radial 8 A 30 VDC 16 A 40 A 20 mOhms - 40 C + 85 C 10.2 mm Bulk
Littelfuse Resettable Fuses - PPTC 30V POLYFUSE 9A RADIAL LEADS
Datasheet
81In Stock
100Expected 16/03/2026
Min.: 1
Mult.: 1

30R PCB Mount Radial 9 A 30 VDC 18 A 40 A 20 mOhms - 40 C + 85 C 10.2 mm Bulk
Littelfuse Resettable Fuses - PPTC PTC 30V 9A POLY RADIAL LEADS
Datasheet
1,645In Stock
Min.: 1
Mult.: 1
Reel: 1,000

30R PCB Mount Radial 9 A 30 VDC 18 A 40 A 20 mOhms - 40 C + 85 C 10.2 mm Ammo Pack
Littelfuse Resettable Fuses - PPTC 0.15A 600V RADIAL
Datasheet
802In Stock
Min.: 1
Mult.: 1

600R PCB Mount Radial 150 mA 60 VDC 300 mA 3 A 17 Ohms - 40 C + 85 C 5.1 mm Bulk
Littelfuse Resettable Fuses - PPTC 0.15A 600V RADIAL
Datasheet
1,740In Stock
Min.: 1
Mult.: 1

600R PCB Mount Radial 150 mA 60 VDC 300 mA 3 A 20 Ohms - 40 C + 85 C 5.1 mm Bulk
Littelfuse Resettable Fuses - PPTC 0.15A 600V RADIAL
Datasheet
1,328In Stock
Min.: 1
Mult.: 1
Reel: 1,200

600R PCB Mount Radial 150 mA 60 VDC 300 mA 3 A 22 Ohms - 40 C + 85 C 5.1 mm Ammo Pack
Littelfuse Resettable Fuses - PPTC PTC 60V/600V.150A POLY TELECOM
Datasheet
1,766In Stock
Min.: 1
Mult.: 1
Reel: 1,200

600R PCB Mount Radial 150 mA 60 VDC 300 mA 3 A 17 Ohms - 40 C + 85 C 5.1 mm Ammo Pack
Littelfuse Resettable Fuses - PPTC PTC 60V/600V.160A POLY TELECOM
Datasheet
40In Stock
Min.: 1
Mult.: 1
Reel: 500

600R PCB Mount Radial 160 mA 60 VDC 320 mA 3 A 18 Ohms - 40 C + 85 C 5.1 mm Ammo Pack
Littelfuse Resettable Fuses - PPTC 60V .10A RADIAL LEAD
Datasheet
2,087In Stock
Min.: 1
Mult.: 1
Reel: 2,000

60R PCB Mount Radial 100 mA 60 VDC 200 mA 40 A 7.5 Ohms - 40 C + 85 C 5.1 mm Ammo Pack
Littelfuse Resettable Fuses - PPTC 60V POLYFUSE .100A RADIAL LEADS
Datasheet
1,268In Stock
Min.: 1
Mult.: 1

60R PCB Mount Radial 100 mA 60 VDC 200 mA 40 A 7.5 Ohms - 40 C + 85 C 5.1 mm Bulk
Littelfuse Resettable Fuses - PPTC 60V .170A RADIAL LEADS
Datasheet
2,849In Stock
Min.: 1
Mult.: 1
Reel: 2,000

60R PCB Mount Radial 170 mA 60 VDC 340 mA 40 A 8 Ohms - 40 C + 85 C 5.1 mm Ammo Pack
Littelfuse Resettable Fuses - PPTC 60V POLYFUSE .170A RADIAL LEADS
Datasheet
160In Stock
500Expected 06/04/2026
Min.: 1
Mult.: 1

60R PCB Mount Radial 170 mA 60 VDC 340 mA 40 A 8 Ohms - 40 C + 85 C 5.1 mm Bulk
Littelfuse Resettable Fuses - PPTC 60V 200MA RADIAL
Datasheet
5,880In Stock
Min.: 1
Mult.: 1

60R PCB Mount Radial 200 mA 60 VDC 400 mA 40 A 4.4 Ohms - 40 C + 85 C 5.1 mm Bulk
Littelfuse Resettable Fuses - PPTC 60V .250A RADIAL LEADS
Datasheet
2,285In Stock
Min.: 1
Mult.: 1
Reel: 2,000

60R PCB Mount Radial 250 mA 60 VDC 500 mA 40 A 3 Ohms - 40 C + 85 C 5.1 mm Ammo Pack
Littelfuse Resettable Fuses - PPTC 60V .300A RADIAL LEADS
Datasheet
245In Stock
2,000Expected 23/03/2026
Min.: 1
Mult.: 1
Reel: 2,000

60R PCB Mount Radial 300 mA 60 VDC 600 mA 40 A 2.1 Ohms - 40 C + 85 C 5.1 mm Ammo Pack