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: 47
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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 1206 LoRho SL 1.10A
Datasheet
10,510In 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
Littelfuse Resettable Fuses - PPTC 12V POLYFUSE 1206 LoRho SL 1.50A
Datasheet
5,212In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Rho SMD/SMT SMD/SMT 1.5 A 12 VDC 3 A 50 A 80 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 1.50A
Datasheet
5,132In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Rho SMD/SMT SMD/SMT 1.5 A 6 VDC 3 A 50 A 55 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 1.75A
Datasheet
10,234In 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 30 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 2A
Datasheet
4,170In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Rho PCB Mount SMD/SMT 2 A 6 VDC 4 A 50 A 25 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 2.6A
Datasheet
4,045In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Rho SMD/SMT SMD/SMT 2.6 A 6 VDC 5 A 50 A 26 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel

Littelfuse Resettable Fuses - PPTC 12V 4.0A-HD 50A SMD
Datasheet
5,006In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Low Rho SMD/SMT SMD/SMT 4 A 12 VDC 8 A 50 A 16 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 4.50A
Datasheet
3,979In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Low Rho PCB Mount SMD/SMT 4.5 A 6 VDC 9 A 50 A 14 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel

Littelfuse Resettable Fuses - PPTC 6V 5.0A-HD 50A MAX
Datasheet
8,000In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Low Rho SMD/SMT SMD/SMT 5 A 6 VDC 10 A 50 A 12 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel

Littelfuse Resettable Fuses - PPTC 6V 6.0A-HD 50A SMD
Datasheet
5,769In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Low Rho SMD/SMT SMD/SMT 6 A 6 VDC 12 A 50 A 10 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1210 LoRho SL 3.5A
Datasheet
4,912In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Low Rho SMD/SMT SMD/SMT 3.5 A 6 VDC 7 A 50 A 18 mOhms 1210 (3225 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 0402 LoRho SL .500A
Datasheet
608In Stock
30,000On Order
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 12V POLYFUSE 1206 LoRho SL 1.1A
Datasheet
553In Stock
4,000Expected 12/31/2026
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Rho SMD/SMT SMD/SMT 1.1 A 12 VDC 2.2 A 50 A 130 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 3.80A
Datasheet
1,357In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Rho SMD/SMT SMD/SMT 2.82 A 6 VDC 8 A 50 A 14 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1210 LoRho SL 2A
Datasheet
66In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Rho PCB Mount SMD/SMT 2 A 6 VDC 4 A 50 A 24 mOhms 1210 (3225 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1210 LoRho SL 4.50A
Datasheet
87In Stock
6,000Expected 9/1/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Low Rho PCB Mount SMD/SMT 4.5 A 6 VDC 9 A 50 A 14 mOhms 1210 (3225 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V 5A 1210 POLYFUSE SURF MOUNT
Datasheet
817In Stock
Min.: 1
Mult.: 1
: 3,000

Low Rho PCB Mount SMD/SMT 5 A 6 VDC 10 A 50 A 12 mOhms - 40 C + 85 C Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1812 LoRho SL 3.5A
Datasheet
1,215In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

Low Rho PCB Mount SMD/SMT 3.5 A 6 VDC 8.1 A 50 A 20 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1210 LoRho SL 4A
Datasheet
5,968Expected 9/30/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Low Rho SMD/SMT SMD/SMT 4 A 6 VDC 8 A 50 A 14 mOhms 1210 (3225 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel

Littelfuse Resettable Fuses - PPTC 6V 6.0A-HD 50A SMD
Datasheet
3,000Expected 10/14/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Low Rho SMD/SMT SMD/SMT 6 A 6 VDC 12 A 50 A 10 mOhms 1210 (3225 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1812 LoRho SL 3.00A
Datasheet
1,998Expected 1/20/2027
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 1812 LoRho SL 1.90A
Datasheet
Non-Stocked Lead-Time 15 Weeks
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

Low Rho PCB Mount SMD/SMT 1.9 A 6 V 4.9 A 50 A 25 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel