Low Resistance Resettable PTCs

Littelfuse Low Resistance Resettable PPTCs offer ultra-low normal operating resistance while maintaining the same performance of other Littelfuse PPTC products. The low resistance devices offer a 0.1A to 6A maximum current range, a 5V to 12V maximum voltage range, and overcurrent and over-temperature protections for various applications. The low-resistance resettable PPTCs are available in the Surface Mount Low Rho SMD Series, the Surface Mount LoRho Series, and the Battery Strap SL Series. The components are halogen-free, lead-free, and RoHS Compliant.

Results: 48
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Description Datasheet Availability Pricing (TWD) 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
Package / Case
Minimum Operating Temperature
Maximum Operating Temperature
Packaging
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 0603 LoRho SL 1.75A
Datasheet
16,259In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Rho SMD/SMT SMD/SMT 1.75 A 6 VDC 3.5 A 50 A 60 mOhms 0603 (1608 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 3.00A
Datasheet
53,560In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Rho SMD/SMT SMD/SMT 3 A 6 VDC 6 A 50 A 20 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1812 LoRho SL 2.60A
Datasheet
2,784In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

Low Rho SMD/SMT SMD/SMT 2.6 A 6 VDC 6 A 50 A 24 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 3.50A
Datasheet
15,030In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Rho SMD/SMT SMD/SMT 3.5 A 6 VDC 7 A 50 A 18 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 0805 LoRho SL 2.60A
Datasheet
6,574In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Rho SMD/SMT SMD/SMT 2.6 A 6 VDC 5.2 A 50 A 35 mOhms 0805 (2012 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 2920 LoRho SL 7.0A
Datasheet
2,670In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

Low Rho SMD/SMT SMD/SMT 7 A 6 VDC 14 A 50 A 7 mOhms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel

Littelfuse Resettable Fuses - PPTC 12V 5.0A-HD 50A SMD
Datasheet
5,353In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Low Rho SMD/SMT SMD/SMT 5 A 12 VDC 10 A 50 A 12 mOhms 1210 (3225 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel

Littelfuse Resettable Fuses - PPTC 6V 5.5A-HD 50A SMD
Datasheet
1,770In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Low Rho SMD/SMT SMD/SMT 5.5 A 6 VDC 11 A 50 A 11 mOhms 1210 (3225 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1812 LoRho SL 3.00A
Datasheet
104In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

Low Rho SMD/SMT SMD/SMT 3 A 6 VDC 7 A 50 A 21 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1210 LoRho SL 2.6A
Datasheet
54In Stock
4,000Expected 1/4/2027
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Rho SMD/SMT SMD/SMT 2.6 A 6 V 5 A 50 A 20 mOhms 1210 (3225 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 0402 LoRho SL .350A
Datasheet
15,915In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

Low Rho SMD/SMT SMD/SMT 350 mA 6 VDC 700 mA 40 A 700 mOhms 0402 (1005 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 0603 LoRho SL 0.50A
Datasheet
23,041In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Rho SMD/SMT SMD/SMT 500 mA 6 VDC 1 A 50 A 350 mOhms 0603 (1608 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 4A
Datasheet
26,480In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Low Rho SMD/SMT SMD/SMT 4 A 6 VDC 8 A 50 A 16 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 0402 LoRho SL .100A
Datasheet
8,716In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

Low Rho SMD/SMT SMD/SMT 100 mA 6 VDC 300 mA 40 A 2 Ohms 0402 (1005 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 0402 LoRho SL .100A
Datasheet
9,689In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

Low Rho SMD/SMT SMD/SMT 200 mA 6 VDC 500 mA 40 A 1.25 Ohms 0402 (1005 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 0402 LoRho SL .500A
Datasheet
2,205In Stock
10,000Expected 10/14/2026
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

Low Rho SMD/SMT SMD/SMT 500 mA 6 VDC 1 A 40 A 400 mOhms 0402 (1005 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 0603 LoRho SL 1A
Datasheet
10,189In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Rho SMD/SMT SMD/SMT 1 A 6 VDC 1.8 A 50 A 120 mOhms 0603 (1608 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 0603 LoRho SL 1.5A
Datasheet
2,868In Stock
8,000Expected 8/13/2026
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Rho SMD/SMT SMD/SMT 1.5 A 6 VDC 3 A 50 A 80 mOhms 0603 (1608 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 0805 LoRho SL 0.75A
Datasheet
2,925In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Rho SMD/SMT SMD/SMT 750 mA 6 VDC 1.5 A 50 A 150 mOhms 0805 (2012 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 0805 LoRho SL 1.10A
Datasheet
8,895In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Rho SMD/SMT SMD/SMT 1.1 A 6 VDC 1.8 A 50 A 120 mOhms 0805 (2012 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 0805 LoRho SL 1.5A
Datasheet
4,053In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Rho SMD/SMT SMD/SMT 1.5 A 6 VDC 3 A 50 A 65 mOhms 0805 (2012 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 0805 LoRho SL 2.00A
Datasheet
10,002In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Rho PCB Mount SMD/SMT 2 A 6 VDC 4 A 50 A 45 mOhms 0805 (2012 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 0805 LoRho SL 3.00A
Datasheet
5,830In Stock
9,000Expected 8/13/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Low Rho SMD/SMT SMD/SMT 3 A 6 VDC 6 A 50 A 30 mOhms 0805 (2012 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 0.75A
Datasheet
6,303In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Rho SMD/SMT SMD/SMT 750 mA 6 VDC 1.5 A 50 A 180 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 1.10A
Datasheet
10,535In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Rho SMD/SMT SMD/SMT 1.1 A 6 VDC 2.2 A 50 A 100 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel