Resettable Fuses - PPTC

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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (PEN) Filter the results in the table by unit price based on your quantity.	Qty.	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
Resettable Fuses - PPTC RGEF250-2 RGEF250-2 Littelfuse 1: S/ 2.10 5,433In Stock	Mfr. Part # RGEF250-2 Mouser Part # 650-RGEF250-2	Littelfuse	Resettable Fuses - PPTC RGEF250-2 Learn More about Littelfuse radial leaded pptcs	Datasheet	5,433In Stock	Cut Tape S/ 2.10 S/ 1.81 S/ 1.56 S/ 1.42 Reel S/ 1.04 View S/ 1.30 S/ 1.22 S/ 1.15 S/ 0.973	Min.: 1 Mult.: 1 : 3,000	RGEF	PCB Mount	Radial	2.5 A	16 VDC	4.7 A	100 A	53 mOhms	- 40 C	+ 85 C	5.8 mm		Reel, Cut Tape
Resettable Fuses - PPTC 0.12A 250V RADIAL 250R120U Littelfuse 1: S/ 2.80 3,880In Stock	Mfr. Part # 250R120U Mouser Part # 576-250R120	Littelfuse	Resettable Fuses - PPTC 0.12A 250V RADIAL Learn More about Littelfuse radial leaded pptcs	Datasheet	3,880In Stock	S/ 2.80 S/ 2.57 S/ 2.13 S/ 1.95 View S/ 1.77 S/ 1.63 S/ 1.50 S/ 1.28	Min.: 1 Mult.: 1	250R	PCB Mount	Radial	120 mA	60 VDC	240 mA	3 A	16 Ohms	- 40 C	+ 85 C	5.1 mm		Bulk
Resettable Fuses - PPTC 60V 40A 2.30W Radial-leaded Device RKEF135 Littelfuse 1: S/ 2.10 9,441In Stock	Mfr. Part # RKEF135 Mouser Part # 650-RKEF135	Littelfuse	Resettable Fuses - PPTC 60V 40A 2.30W Radial-leaded Device Learn More about Littelfuse radial leaded pptcs	Datasheet	9,441In Stock	S/ 2.10 S/ 1.83 S/ 1.59 S/ 1.44 View S/ 1.33 S/ 1.23 S/ 1.12 S/ 1.08 S/ 0.938	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
Resettable Fuses - PPTC 5A 30V 100A Imax RUEF500K-2 Littelfuse 1: S/ 3.46 5,890In Stock	Mfr. Part # RUEF500K-2 Mouser Part # 650-RUEF500K-2	Littelfuse	Resettable Fuses - PPTC 5A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	5,890In Stock	Cut Tape S/ 3.46 S/ 3.20 S/ 2.65 S/ 2.45 Reel S/ 1.53 View S/ 2.20 S/ 2.03 S/ 1.47	Min.: 1 Mult.: 1 : 1,500	RUEF	PCB Mount	Radial	5 A	30 VDC	10 A	100 A	50 mOhms	- 40 C	+ 85 C	10.9 mm		Reel, Cut Tape
Resettable Fuses - PPTC PTC 60V/250V.120A POLY TELECOM 250R120-RAZR Littelfuse 1: S/ 5.64 2,400In Stock	Mfr. Part # 250R120-RAZR Mouser Part # 576-250R120-RAZR	Littelfuse	Resettable Fuses - PPTC PTC 60V/250V.120A POLY TELECOM Learn More about Littelfuse radial leaded pptcs	Datasheet	2,400In Stock	S/ 5.64 S/ 5.22 S/ 4.28 S/ 3.97 Reel S/ 2.68 View S/ 3.56 S/ 3.29 S/ 2.48 S/ 2.34	Min.: 1 Mult.: 1 : 1,200	250R	PCB Mount	Radial	120 mA	60 VDC	240 mA	3 A	16 Ohms	- 40 C	+ 85 C	5.1 mm		Ammo Pack
Resettable Fuses - PPTC 30V POLYFUSE 5A RADIAL LEADS 30R500UF Littelfuse 1: S/ 5.22 5,175In Stock	Mfr. Part # 30R500UF Mouser Part # 576-30R500UF	Littelfuse	Resettable Fuses - PPTC 30V POLYFUSE 5A RADIAL LEADS Learn More about Littelfuse radial leaded pptcs	Datasheet	5,175In Stock	S/ 5.22 S/ 4.36 S/ 3.54 S/ 3.08 View S/ 2.73 S/ 2.56	Min.: 1 Mult.: 1	30R	PCB Mount	Radial	5 A	30 VDC	10 A	40 A	50 mOhms	- 40 C	+ 85 C	10.2 mm		Bulk
Resettable Fuses - PPTC PTC POLYFUSE RADIAL 72V 1.85A 72R185XMR Littelfuse 1: S/ 6.93 3,466In Stock	Mfr. Part # 72R185XMR Mouser Part # 576-72R185XMR	Littelfuse	Resettable Fuses - PPTC PTC POLYFUSE RADIAL 72V 1.85A Learn More about Littelfuse radial leaded pptcs	Datasheet	3,466In Stock	S/ 6.93 S/ 6.42 S/ 5.33 S/ 4.90 Reel S/ 3.34 View S/ 4.40 S/ 4.09 S/ 3.18 S/ 2.95	Min.: 1 Mult.: 1 : 1,000	72R	PCB Mount	Radial	1.85 A	72 VDC	3.7 A	40 A	190 mOhms	- 40 C	+ 85 C	5.1 mm		Ammo Pack
Resettable Fuses - PPTC 3A 32V High Temp AEC-Q200 AHEF300 Littelfuse 1: S/ 3.35 7,711In Stock	Mfr. Part # AHEF300 Mouser Part # 650-AHEF300	Littelfuse	Resettable Fuses - PPTC 3A 32V High Temp AEC-Q200 Learn More about Littelfuse radial leaded pptcs	Datasheet	7,711In Stock	S/ 3.35 S/ 2.88 S/ 2.54 S/ 2.30 View S/ 2.16 S/ 1.87 S/ 1.74 S/ 1.73 S/ 1.59	Min.: 1 Mult.: 1	AHEF	PCB Mount	Radial	3 A	32 VDC	6 A	100 A	110 mOhms	- 40 C	+ 85 C	5.84 mm	AEC-Q100	Bulk
Resettable Fuses - PPTC 430 mOhms 40 A 30 VDC - 40 C+ 125 C RHEF100-AP Littelfuse 1: S/ 2.72 10,949In Stock	Mfr. Part # RHEF100-AP Mouser Part # 650-RHEF100-AP	Littelfuse	Resettable Fuses - PPTC 430 mOhms 40 A 30 VDC - 40 C+ 125 C Learn More about Littelfuse radial leaded pptcs	Datasheet	10,949In Stock	Cut Tape S/ 2.72 S/ 2.50 S/ 2.08 S/ 1.92 Reel S/ 1.16 View S/ 1.72 S/ 1.47 S/ 1.12	Min.: 1 Mult.: 1 : 2,000	RHEF	PCB Mount	Radial	1 A	30 VDC	1.8 A	40 A	430 mOhms	- 40 C	+ 125 C	5.8 mm		Reel, Cut Tape
Resettable Fuses - PPTC Radial Lead .2A 72V 40A Imax RXEF020-2 Littelfuse 1: S/ 1.95 8,555In Stock	Mfr. Part # RXEF020-2 Mouser Part # 650-RXEF020-2	Littelfuse	Resettable Fuses - PPTC Radial Lead .2A 72V 40A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	8,555In Stock	Cut Tape S/ 1.95 S/ 1.70 S/ 1.46 S/ 1.25 Reel S/ 0.829 View S/ 1.22 S/ 1.13 S/ 1.04 S/ 0.825	Min.: 1 Mult.: 1 : 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
Resettable Fuses - PPTC 30V RADIAL LDS 1.60A RADIAL LEADS 30R160UPR Littelfuse 1: S/ 3.19 5,542In Stock	Mfr. Part # 30R160UPR Mouser Part # 576-30R160UPR	Littelfuse	Resettable Fuses - PPTC 30V RADIAL LDS 1.60A RADIAL LEADS Learn More about Littelfuse radial leaded pptcs	Datasheet	5,542In Stock	S/ 3.19 S/ 2.78 S/ 2.37 S/ 2.18 Reel S/ 1.39 View S/ 2.04 S/ 1.89 S/ 1.77 S/ 1.36	Min.: 1 Mult.: 1 : 2,000	30R	PCB Mount	Radial	1.6 A	30 VDC	3.2 A	40 A	110 mOhms	- 40 C	+ 85 C	5.1 mm		Ammo Pack
Resettable Fuses - PPTC RGEF600-2 RGEF600-2 Littelfuse 1: S/ 3.19 1,997In Stock	Mfr. Part # RGEF600-2 Mouser Part # 650-RGEF600-2	Littelfuse	Resettable Fuses - PPTC RGEF600-2 Learn More about Littelfuse radial leaded pptcs	Datasheet	1,997In Stock	Cut Tape S/ 3.19 S/ 2.92 S/ 2.42 S/ 2.23 Reel S/ 1.50 View S/ 2.01 S/ 1.71 S/ 1.33	Min.: 1 Mult.: 1 : 2,000	RGEF	PCB Mount	Radial	6 A	16 VDC	10.2 A	100 A	28 mOhms	- 40 C	+ 85 C	5.8 mm		Reel, Cut Tape
Resettable Fuses - PPTC RHEF400-2 RHEF400-2 Littelfuse 1: S/ 3.62 14,693In Stock	Mfr. Part # RHEF400-2 Mouser Part # 650-RHEF400-2	Littelfuse	Resettable Fuses - PPTC RHEF400-2 Learn More about Littelfuse radial leaded pptcs	Datasheet	14,693In Stock	Cut Tape S/ 3.62 S/ 3.09 S/ 2.58 S/ 2.31 Reel S/ 1.60 View S/ 2.07 S/ 1.91 S/ 1.48 S/ 1.35	Min.: 1 Mult.: 1 : 1,500	RHEF	PCB Mount	Radial	4 A	16 VDC	7.5 A	100 A	60 mOhms	- 40 C	+ 125 C	5.8 mm		Reel, Cut Tape
Resettable Fuses - PPTC 4A 30V 100A Imax RUEF400K-2 Littelfuse 1: S/ 2.61 3,000In Stock	Mfr. Part # RUEF400K-2 Mouser Part # 650-RUEF400K-2	Littelfuse	Resettable Fuses - PPTC 4A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	3,000In Stock	Cut Tape S/ 2.61 S/ 2.26 S/ 1.96 S/ 1.79 Reel S/ 1.35 View S/ 1.64 S/ 1.54 S/ 1.25 S/ 1.19	Min.: 1 Mult.: 1 : 1,500	RUEF	PCB Mount	Radial	4 A	30 VDC	8 A	100 A	50 mOhms	- 40 C	+ 85 C	5.8 mm		Reel, Cut Tape
Resettable Fuses - PPTC .5A 72V 40A Imax RXEF050S-AP Littelfuse 1: S/ 2.02 3,320In Stock	Mfr. Part # RXEF050S-AP Mouser Part # 650-RXEF050S-AP	Littelfuse	Resettable Fuses - PPTC .5A 72V 40A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	3,320In Stock	Cut Tape S/ 2.02 S/ 1.85 S/ 1.53 S/ 1.40 Reel S/ 0.852 View S/ 1.27 S/ 1.17 S/ 1.07 S/ 0.782	Min.: 1 Mult.: 1 : 2,000	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
Resettable Fuses - PPTC PTC 16V 10A POLY RADIAL LEADS 16R1000GMR Littelfuse 1: S/ 6.31 1,606In Stock	Mfr. Part # 16R1000GMR Mouser Part # 576-16R1000GMR	Littelfuse	Resettable Fuses - PPTC PTC 16V 10A POLY RADIAL LEADS Learn More about Littelfuse radial leaded pptcs	Datasheet	1,606In Stock	Cut Tape S/ 6.31 S/ 5.41 S/ 4.79 S/ 4.32 Reel S/ 3.02 View S/ 4.01 S/ 3.74 S/ 2.77	Min.: 1 Mult.: 1 : 1,000	16R	PCB Mount	Radial	10 A	16 VDC	17 A	100 A	10.2 mOhms	- 40 C	+ 85 C	5.1 mm		Reel, Cut Tape
Resettable Fuses - PPTC PTC 16V 5A POLY RADIAL LEADS 16R500GU Littelfuse 1: S/ 3.11 2,633In Stock	Mfr. Part # 16R500GU Mouser Part # 576-16R500GU	Littelfuse	Resettable Fuses - PPTC PTC 16V 5A POLY RADIAL LEADS Learn More about Littelfuse radial leaded pptcs	Datasheet	2,633In Stock	S/ 3.11 S/ 2.41 S/ 2.07 S/ 1.77 View S/ 1.67 S/ 1.57 S/ 1.53 S/ 1.44	Min.: 1 Mult.: 1	16R	PCB Mount	Radial	5 A	16 VDC	8.5 A	100 A	34 mOhms	- 40 C	+ 85 C	5.1 mm		Bulk
Resettable Fuses - PPTC PTC 60V/250V.145A POLY TELECOM 250R145ZR Littelfuse 1: S/ 3.66 1,813In Stock	Mfr. Part # 250R145ZR Mouser Part # 576-250R145ZR	Littelfuse	Resettable Fuses - PPTC PTC 60V/250V.145A POLY TELECOM Learn More about Littelfuse radial leaded pptcs	Datasheet	1,813In Stock	S/ 3.66 S/ 3.38 S/ 2.81 S/ 2.59 Reel S/ 1.53 View S/ 2.33 S/ 2.14 S/ 1.46	Min.: 1 Mult.: 1 : 1,200	250R	PCB Mount	Radial	145 mA	60 VDC	290 mA	3 A	14 Ohms	- 40 C	+ 85 C	5.1 mm		Ammo Pack
Resettable Fuses - PPTC 60V .170A RADIAL LEADS 60R017XPR Littelfuse 1: S/ 2.37 2,816In Stock	Mfr. Part # 60R017XPR Mouser Part # 576-60R017XPR	Littelfuse	Resettable Fuses - PPTC 60V .170A RADIAL LEADS Learn More about Littelfuse radial leaded pptcs	Datasheet	2,816In Stock	S/ 2.37 S/ 2.18 S/ 1.81 S/ 1.67 Reel S/ 1.01 View S/ 1.50 S/ 1.28 S/ 0.926 S/ 0.903	Min.: 1 Mult.: 1 : 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
Resettable Fuses - PPTC RGEF500K-AP RGEF500K-AP Littelfuse 1: S/ 2.61 3,535In Stock	Mfr. Part # RGEF500K-AP Mouser Part # 650-RGEF500K-AP	Littelfuse	Resettable Fuses - PPTC RGEF500K-AP Learn More about Littelfuse radial leaded pptcs	Datasheet	3,535In Stock	Cut Tape S/ 2.61 S/ 2.39 S/ 1.98 S/ 1.83 Reel S/ 1.40 View S/ 1.65 S/ 1.46 S/ 1.39 S/ 1.35	Min.: 1 Mult.: 1 : 2,000	RGEF	PCB Mount	Radial	5 A	16 VDC	8.5 A	100 A	34 mOhms	- 40 C	+ 85 C	5.8 mm		Reel, Cut Tape
Resettable Fuses - PPTC Radial Lead 7A 16V 100A Imax RGEF700K-2 Littelfuse 1: S/ 3.31 2,931In Stock	Mfr. Part # RGEF700K-2 Mouser Part # 650-RGEF700K-2	Littelfuse	Resettable Fuses - PPTC Radial Lead 7A 16V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	2,931In Stock	Cut Tape S/ 3.31 S/ 3.03 S/ 2.51 S/ 2.32 Reel S/ 1.45 View S/ 2.09 S/ 1.93 S/ 1.33 S/ 1.30	Min.: 1 Mult.: 1 : 1,500	RGEF	PCB Mount	Radial	7 A	16 VDC	11.9 A	100 A	22 mOhms	- 40 C	+ 85 C	5.8 mm		Reel, Cut Tape
Resettable Fuses - PPTC 30V POLYFUSE 1.35A RADIAL LEADS 30R135UPR Littelfuse 1: S/ 2.53 3,156In Stock	Mfr. Part # 30R135UPR Mouser Part # 576-30R135UPR	Littelfuse	Resettable Fuses - PPTC 30V POLYFUSE 1.35A RADIAL LEADS Learn More about Littelfuse radial leaded pptcs	Datasheet	3,156In Stock	S/ 2.53 S/ 2.12 S/ 1.81 S/ 1.62 Reel S/ 1.10 View S/ 1.53 S/ 1.33 S/ 1.01 S/ 0.989	Min.: 1 Mult.: 1 : 2,000	30R	PCB Mount	Radial	1.35 A	30 VDC	2.7 A	40 A	130 mOhms	- 40 C	+ 85 C	5.1 mm		Ammo Pack
Resettable Fuses - PPTC RGEF800-2 RGEF800-2 Littelfuse 1: S/ 3.89 2,353In Stock	Mfr. Part # RGEF800-2 Mouser Part # 650-RGEF800-2	Littelfuse	Resettable Fuses - PPTC RGEF800-2 Learn More about Littelfuse radial leaded pptcs	Datasheet	2,353In Stock	Cut Tape S/ 3.89 S/ 3.58 S/ 2.85 S/ 2.75 Reel S/ 1.71 View S/ 2.47 S/ 2.28 S/ 1.58 S/ 1.56	Min.: 1 Mult.: 1 : 1,500	RGEF	PCB Mount	Radial	8 A	16 VDC	13.6 A	100 A	17.5 mOhms	- 40 C	+ 85 C	5.8 mm		Reel, Cut Tape
Resettable Fuses - PPTC 1.6A 30V 40A Imax RUEF160-AP Littelfuse 1: S/ 2.26 3,673In Stock	Mfr. Part # RUEF160-AP Mouser Part # 650-RUEF160-AP	Littelfuse	Resettable Fuses - PPTC 1.6A 30V 40A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	3,673In Stock	Cut Tape S/ 2.26 S/ 2.06 S/ 1.71 S/ 1.58 Reel S/ 0.95 View S/ 1.42 S/ 1.31 S/ 1.20 S/ 0.876	Min.: 1 Mult.: 1 : 2,000	RUEF	PCB Mount	Radial	1.6 A	30 VDC	3.2 A	100 A	110 mOhms	- 40 C	+ 85 C	5.8 mm		Reel, Cut Tape
Resettable Fuses - PPTC 2.5A 30V 40A Imax Uncoated RUEF250U-2 Littelfuse 1: S/ 2.14 3,930In Stock	Mfr. Part # RUEF250U-2 Mouser Part # 650-RUEF250U-2	Littelfuse	Resettable Fuses - PPTC 2.5A 30V 40A Imax Uncoated Learn More about Littelfuse radial leaded pptcs	Datasheet	3,930In Stock	Cut Tape S/ 2.14 S/ 1.66 S/ 1.49 S/ 1.37 Reel S/ 0.973 View S/ 1.28 S/ 1.23 S/ 1.16 S/ 0.942	Min.: 1 Mult.: 1 : 3,000	RUEF	PCB Mount	Radial	2.5 A	30 VDC	5 A	100 A	70 mOhms	- 40 C	+ 85 C	5.8 mm		Reel, Cut Tape