PolySwitch Surface-Mount Resettable PTCs

Littelfuse PolySwitch Surface-Mount (SMD) Resettable PTCs provide overcurrent protection for applications where space is at a premium, and resettable protection is desired. The components are reliable and capable of protecting computers and consumer electronics against temporary overcurrent faults. Package sizes range from 0402 to 3425, while the current hold ranges from 50mA to 7.0A. The Littelfuse PolySwitch SMD product family is qualified to strict automotive standards (per AECQ200). As a result, these PTCs are suitable for protecting electronic control units (ECUs) against damage from faults that would otherwise require costly, complete module replacement.

Results: 409
Select Image Part # Mfr. Description Datasheet Availability Pricing (IDR) 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 Qualification Packaging
Littelfuse Resettable Fuses - PPTC PTC 72V POLYFUSE SURF MOUNT 2920 0.50A 3.260In Stock
12.000Expected 01/03/2027
Cut Tape
Rp15.594,10
Rp14.346,57
Rp11.906,55
Rp10.989,25
Reel
Rp7.265,02
Min.: 1
Mult.: 1
: 1.500
2920L SMD/SMT SMD/SMT 500 mA 72 VDC 1 A 10 A 1.5 Ohms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 0402 LoRho SL .100A 2.979In Stock
10.000Expected 15/02/2027
Cut Tape
Rp49.901,12
Rp46.048,46
Rp38.343,14
Rp34.857,40
Reel
Rp25.500,94
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 7.170In Stock
Cut Tape
Rp49.901,12
Rp45.131,16
Rp37.425,84
Rp33.573,18
Reel
Rp25.500,94
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 1.0A-HD 40A SMD 3.018In Stock
10.000Expected 10/11/2026
Cut Tape
Rp49.901,12
Rp46.048,46
Rp38.343,14
Rp35.407,78
Reel
Rp25.500,94
Min.: 1
Mult.: 1
: 10.000
Low Rho SMD/SMT SMD/SMT 1 A 6 VDC 2 A 40 A 250 mOhms 0402 (1005 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 36V 30MA-HD 40A SMD 16.933In Stock
Cut Tape
Rp33.389,72
Rp30.821,28
Rp25.317,48
Rp23.115,96
Reel
Rp15.282,22
Min.: 1
Mult.: 1
: 4.000
0603L SMD/SMT SMD/SMT 30 mA 36 VDC 90 mA 40 A 50 Ohms 0603 (1608 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel

Littelfuse Resettable Fuses - PPTC 36V 30MA-HD 40A SMD 2.379In Stock
Cut Tape
Rp39.994,28
Rp37.058,92
Rp30.637,82
Rp28.252,84
Reel
Rp19.997,14
Min.: 1
Mult.: 1
: 4.000
0603L SMD/SMT SMD/SMT 30 mA 36 V 90 mA 40 A 50 Ohms 0603 (1608 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 15V 0603 .100A POLY SURF MOUNT 3.525In Stock
Cut Tape
Rp24.583,64
Reel
Rp24.583,64
Min.: 1
Mult.: 1
: 4.000
0603L SMD/SMT SMD/SMT 100 mA 15 VDC 300 mA 40 A 6 Ohms 0603 (1608 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 9V .250A POLY SURF MOUNT 1.496In Stock
4.000Expected 01/02/2027
Cut Tape
Rp24.583,64
Reel
Rp24.583,64
Min.: 1
Mult.: 1
: 4.000
0603L SMD/SMT SMD/SMT 250 mA 9 VDC 550 mA 40 A 3 Ohms 0603 (1608 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 6V .350A POLY SURF MOUNT 2.158In Stock
Cut Tape
Rp24.767,10
Rp24.583,64
Reel
Rp24.583,64
Min.: 1
Mult.: 1
: 4.000
0603L SMD/SMT SMD/SMT 350 mA 6 VDC 750 mA 40 A 1 Ohms 0603 (1608 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 6V POLY 0603 0.5A 14.378In Stock
4.000Expected 07/01/2027
Cut Tape
Rp21.831,74
Rp20.180,60
Rp16.823,28
Reel
Rp16.823,28
Min.: 1
Mult.: 1
: 4.000
0603L PCB Mount SMD/SMT 500 mA 6 VDC 1 A 40 A 680 mOhms - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 0603 LoRho SL 0.75A 4.269In Stock
4.000On Order
Cut Tape
Rp36.508,54
Rp29.903,98
Rp26.234,78
Rp23.482,88
Reel
Rp16.823,28
Min.: 1
Mult.: 1
: 4.000
Low Rho SMD/SMT SMD/SMT 750 mA 6 VDC 1.5 A 50 A 165 mOhms 0603 (1608 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 0603 LoRho SL 1A 6.810In Stock
Cut Tape
Rp34.490,48
Rp31.738,58
Rp26.418,24
Rp24.400,18
Reel
Rp16.823,28
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 9.374In Stock
Cut Tape
Rp34.490,48
Rp31.738,58
Rp26.418,24
Rp24.400,18
Reel
Rp16.823,28
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 600MA-HD 50A SMD 3.333In Stock
Cut Tape
Rp34.490,48
Rp31.738,58
Rp26.418,24
Rp24.400,18
Reel
Rp16.823,28
Min.: 1
Mult.: 1
: 4.000
Low Rho SMD/SMT SMD/SMT 3 A 6 VDC 6 A 50 A 30 mOhms 0603 (1608 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 30V 50MA-HD 40A SMD 9.514In Stock
Cut Tape
Rp48.433,44
Rp44.580,78
Rp37.058,92
Rp34.123,56
Reel
Rp24.583,64
Min.: 1
Mult.: 1
: 4.000
0805L SMD/SMT SMD/SMT 50 mA 30 VDC 150 mA 40 A 20 Ohms 0805 (2012 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 30V 50MA-HD 40A SMD 3.991In Stock
Cut Tape
Rp48.433,44
Rp44.580,78
Rp37.058,92
Rp34.123,56
Reel
Rp24.583,64
Min.: 1
Mult.: 1
: 4.000
0805L SMD/SMT SMD/SMT 50 mA 30 V 150 mA 40 A 20 Ohms 0805 (2012 metric) - 40 C + 85 C Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC 0.10A 15V 0805 2.362In Stock
8.000Expected 24/12/2026
Cut Tape
Rp22.198,66
Reel
Rp22.198,66
Min.: 1
Mult.: 1
: 4.000
0805L SMD/SMT SMD/SMT 100 mA 15 VDC 300 mA 100 A 6 Ohms 0805 (2012 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 9V 0805 .200A POLYFUSE 2.522In Stock
12.000Expected 27/01/2027
Cut Tape
Rp22.198,66
Reel
Rp22.198,66
Min.: 1
Mult.: 1
: 4.000
0805L SMD/SMT SMD/SMT 200 mA 9 VDC 500 mA 100 A 3.5 Ohms 0805 (2012 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 0.35A 6V 0805 2.663In Stock
Cut Tape
Rp53.019,94
Rp44.213,86
Rp35.774,70
Rp31.004,74
Reel
Rp22.198,66
Min.: 1
Mult.: 1
: 4.000
0805L PCB Mount SMD/SMT 350 mA 6 VDC 750 mA 100 A 1.2 Ohms 0805 (2012 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 0.50A 6V 0805 5.768In Stock
Cut Tape
Rp45.314,62
Rp35.958,16
Rp31.004,74
Rp27.885,92
Reel
Rp24.583,64
Min.: 1
Mult.: 1
: 3.000
0805L SMD/SMT SMD/SMT 500 mA 6 VDC 1 A 100 A 850 mOhms 0805 (2012 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 0805 LoRho SL 0.75A 2.338In Stock
Cut Tape
Rp34.490,48
Rp27.702,46
Rp24.583,64
Rp22.015,20
Reel
Rp16.823,28
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 8.705In Stock
Cut Tape
Rp34.490,48
Rp27.152,08
Rp24.033,26
Rp21.464,82
Reel
Rp16.823,28
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 PTC 12V POLYFUSE SURF MOUNT 0805 SL 1.5A 5.030In Stock
Cut Tape
Rp39.994,28
Rp37.058,92
Rp30.637,82
Rp28.252,84
Reel
Rp19.997,14
Min.: 1
Mult.: 1
: 4.000
0805L PCB Mount SMD/SMT 1.5 A 12 VDC 3 A 50 A 80 mOhms - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 0805 LoRho SL 1.5A 2.698In Stock
Cut Tape
Rp34.490,48
Rp30.454,36
Rp26.418,24
Rp24.400,18
Reel
Rp16.823,28
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 1.747In Stock
8.000Expected 09/02/2027
Cut Tape
Rp34.490,48
Rp31.738,58
Rp26.418,24
Rp24.400,18
Reel
Rp16.823,28
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