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: 410
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 90V POLYFUSE SURF MOUNT 1210 0.1A 15.644In Stock
Cut Tape
Rp25.684,40
Rp23.666,34
Rp19.630,22
Rp18.125,85
Reel
Rp12.787,16
Min.: 1
Mult.: 1
: 3.000
1210L Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 72V POLYFUSE SURF MOUNT 1210 0.20A 16.249In Stock
Cut Tape
Rp25.684,40
Rp23.666,34
Rp19.630,22
Rp18.125,85
Reel
Rp10.659,03
Min.: 1
Mult.: 1
: 3.000
1210L SMD/SMT SMD/SMT 200 mA 72 VDC 400 mA 10 A 5 Ohms 1210 (3225 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 0402 LoRho SL .350A 11.899In 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 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 0402 LoRho SL .500A 27.615In Stock
Cut Tape
Rp59.991,42
Rp46.965,76
Rp39.076,98
Rp35.958,16
Reel
Rp25.500,94
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 60V 10MA-HD 40A SMD 18.350In Stock
Cut Tape
Rp31.555,12
Rp29.170,14
Rp24.033,26
Rp22.015,20
Reel
Rp15.282,22
Min.: 1
Mult.: 1
: 4.000
0603L SMD/SMT SMD/SMT 10 mA 60 VDC 50 mA 40 A 100 Ohms 0603 (1608 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 36V 30MA-HD 40A SMD 17.440In Stock
Cut Tape
Rp33.389,72
Rp29.170,14
Rp23.849,80
Rp21.648,28
Reel
Rp14.163,11
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 24V .035A 0603 PTC 13.177In Stock
Cut Tape
Rp26.234,78
Rp24.583,64
Reel
Rp24.583,64
Min.: 1
Mult.: 1
: 4.000
0603L PCB Mount SMD/SMT 40 mA 24 VDC 120 mA 20 A 40 Ohms - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 0805 LoRho SL 3.00A 13.702In Stock
Cut Tape
Rp48.249,98
Rp39.994,28
Rp37.058,92
Rp30.637,82
Reel
Rp21.648,28
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 24V 500MA-HD 100A MAX 29.963In Stock
12.000Expected 29/10/2026
Cut Tape
Rp28.619,76
Rp26.418,24
Rp22.015,20
Rp20.364,06
Reel
Rp13.759,50
Min.: 1
Mult.: 1
: 3.000
1206L SMD/SMT SMD/SMT 500 mA 24 VDC 1 A 100 A 750 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 4A 27.810In Stock
Cut Tape
Rp39.994,28
Rp32.105,50
Rp28.619,76
Rp25.500,94
Reel
Rp19.997,14
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 PTC 33V 1.10A POLY SURF MOUNT 87.228In Stock
104.000Expected 24/12/2026
Cut Tape
Rp11.374,52
Rp10.071,95
Rp8.604,27
Rp7.576,90
Reel
Rp5.210,26
Min.: 1
Mult.: 1
: 1.000
1812L PCB Mount SMD/SMT 1.1 A 33 VDC 1.95 A 20 A 200 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel

Littelfuse Resettable Fuses - PPTC 24V 3.0A-HD 50A SMD 16.512In Stock
Cut Tape
Rp48.249,98
Rp39.994,28
Rp37.058,92
Rp30.637,82
Reel
Rp21.648,28
Min.: 1
Mult.: 1
: 2.500
Low Rho SMD/SMT SMD/SMT 3 A 24 VDC 6 A 50 A 30 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 1.10A 33V 2920 50.921In Stock
Cut Tape
Rp15.594,10
Rp11.723,09
Rp11.301,14
Rp9.558,27
Reel
Rp6.586,21
Min.: 1
Mult.: 1
: 2.000
2920L SMD/SMT SMD/SMT 1.1 A 33 VDC 2.2 A 40 A 410 mOhms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel

Littelfuse Resettable Fuses - PPTC 24V 5.0A-HD 50A SMD 24.290In Stock
Cut Tape
Rp67.880,20
Rp56.505,68
Rp52.286,10
Rp43.296,56
Reel
Rp29.170,14
Min.: 1
Mult.: 1
: 1.500
Low Rho SMD/SMT SMD/SMT 5 A 24 VDC 10 A 50 A 18 mOhms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel

Littelfuse Resettable Fuses - PPTC 24V 7.0A-HD 22A SMD 12.877In Stock
Cut Tape
Rp67.696,74
Rp56.505,68
Rp52.286,10
Rp52.102,64
Reel
Rp31.188,20
Min.: 1
Mult.: 1
: 2.500
Low Rho SMD/SMT SMD/SMT 7 A 24 VDC 14 A 50 A 10 mOhms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 2.6A 12V 100A Imax 78.327In Stock
Cut Tape
Rp11.557,98
Rp10.035,26
Rp8.952,85
Rp7.833,74
Reel
Rp5.173,57
Min.: 1
Mult.: 1
: 1.500
miniSMD SMD/SMT SMD/SMT 2.6 A 12 VDC 5 A 100 A 47 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .14A 60V 10A Imax 114.603In Stock
Cut Tape
Rp8.255,70
Rp7.521,86
Rp6.237,64
Rp5.632,22
Reel
Rp3.669,20
Min.: 1
Mult.: 1
: 2.000
miniSMD SMD/SMT SMD/SMT 140 mA 60 VDC 280 mA 10 A 6 Ohms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .5A 13.2V 100A Imax 75.443In Stock
Cut Tape
Rp9.356,46
Rp8.475,85
Rp7.081,56
Rp6.402,75
Reel
Rp3.981,08
Min.: 1
Mult.: 1
: 3.000
nanoSMD SMD/SMT SMD/SMT 500 mA 13.2 VDC 1.1 A 100 A 800 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 30V 40A IMAX 52.912In Stock
Cut Tape
Rp9.723,38
Rp8.971,19
Rp7.448,48
Rp6.879,75
Reel
Rp5.045,15
Min.: 1
Mult.: 1
: 2.000
SMD SMD/SMT SMD/SMT 1.1 A 30 VDC 2.2 A 40 A 480 mOhms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 60V 40A 12.7Ohms 31.525In Stock
Cut Tape
Rp9.906,84
Rp8.732,70
Rp7.430,13
Rp5.668,91
Reel
Rp4.292,96
Min.: 1
Mult.: 1
: 2.000
miniSMD SMD/SMT SMD/SMT 100 mA 60 VDC 300 mA 40 A 12.7 Ohms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 16V POLYFUSE SURF MOUNT 0805 0.20A 1.788In Stock
24.000Expected 29/10/2026
Cut Tape
Rp18.896,38
Rp17.428,70
Rp14.126,42
Rp13.355,89
Reel
Rp8.274,05
Min.: 1
Mult.: 1
: 4.000
0805L SMD/SMT SMD/SMT 200 mA 16 VDC 500 mA 100 A 3.5 Ohms 0805 (2012 metric) Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 72V POLYFUSE SURF MOUNT 2920 0.35A 1.791In Stock
Cut Tape
Rp13.025,66
Rp11.869,86
Rp9.870,15
Rp9.099,62
Reel
Rp6.806,37
Min.: 1
Mult.: 1
: 1.500
2920L SMD/SMT SMD/SMT 350 mA 72 VDC 700 mA 10 A 4 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 01/03/2027
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 7.736In Stock
Cut Tape
Rp53.753,78
Rp45.131,16
Rp42.012,34
Rp35.407,78
Reel
Rp26.418,24
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 2.753In Stock
10.000Expected 21/01/2027
Cut Tape
Rp59.074,12
Rp48.983,82
Rp45.314,62
Rp45.131,16
Reel
Rp27.152,08
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