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 computer and consumer electronics against temporary overcurrent faults. Package size varies 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 (following the AECQ200 specification). 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.

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Description Datasheet Availability Pricing (EUR) 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 6V 1.6A-HD 40A MAX
Datasheet
Non-Stocked
Min.: 3,000
Mult.: 3,000
Reel: 3,000

1206L PCB Mount SMD/SMT 1.6 A 6 V 3.2 A 40 A 115 mOhms 1206 (3216 metric) - 40 C + 85 C Reel
Littelfuse Resettable Fuses - PPTC PTC 6V POLY 1206 SL 3.5A
Datasheet
Non-Stocked Lead-Time 13 Weeks
Min.: 3,000
Mult.: 3,000
Reel: 3,000

Low Rho PCB Mount SMD/SMT 3.5 A 6 V 7 A 50 A 18 mOhms 1206 (3216 metric) - 40 C + 85 C Reel
Littelfuse Resettable Fuses - PPTC 6V 3.80A 1206 SL PTC
Datasheet
Non-Stocked
Min.: 4,000
Mult.: 4,000
Reel: 4,000

Low Rho PCB Mount SMD/SMT 6 V - 40 C + 85 C Reel
Littelfuse Resettable Fuses - PPTC 6V 4.00A 1206 SL PTC
Datasheet
Non-Stocked
Min.: 4,000
Mult.: 4,000
Reel: 4,000

Low Rho PCB Mount SMD/SMT 6 V - 40 C + 85 C Reel
Littelfuse Resettable Fuses - PPTC PTC POLYFUSE SURF MOUNT Lorho 1206 4.0A
Datasheet
Non-Stocked
Min.: 4,000
Mult.: 4,000
Reel: 4,000

Low Rho PCB Mount SMD/SMT 4 A 6 VDC 8 A 50 A 14 mOhms 1206 (3216 metric) - 40 C + 85 C Reel
Littelfuse Resettable Fuses - PPTC PTC POLYFUSE SURF MOUNT Lorho 1206 4.5A
Datasheet
Non-Stocked
Min.: 4,000
Mult.: 4,000
Reel: 4,000
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
Littelfuse Resettable Fuses - PPTC PTC POLYFUSE SURF MOUNT Lorho 1206 5.0A
Datasheet
Non-Stocked
Min.: 4,000
Mult.: 4,000
Reel: 4,000

Low Rho PCB Mount SMD/SMT 5 A 6 VDC 10 A 50 A 12 mOhms 1206 (3216 metric) - 40 C + 85 C Reel
Littelfuse Resettable Fuses - PPTC 12V 1.50A 1210 PTC
Datasheet
Non-Stocked
Min.: 3,000
Mult.: 3,000
Reel: 3,000

1210L PCB Mount SMD/SMT 12 V 100 A 1210 (3225 metric) Reel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1210 LoRho SL 3.00A
Datasheet
Non-Stocked
Min.: 4,000
Mult.: 4,000
Reel: 4,000

Low Rho PCB Mount SMD/SMT 3 A 6 V 6 A 50 A 20 mOhms 1210 (3225 metric) - 40 C + 85 C Reel
Littelfuse Resettable Fuses - PPTC PTC POLYFUSE SURF MOUNT Lorho 1210 4.5A
Datasheet
Non-Stocked
Min.: 4,000
Mult.: 4,000
Reel: 4,000
Low Rho SMD/SMT SMD/SMT 4.5 A 6 VDC 9 A 50 A 14 mOhms 1210 (3225 metric) - 40 C + 85 C Reel
Littelfuse Resettable Fuses - PPTC PTC POLYFUSE SURF MOUNT Lorho 1210 5.0A
Datasheet
Non-Stocked
Min.: 4,000
Mult.: 4,000
Reel: 4,000
Low Rho SMD/SMT SMD/SMT 5 A 6 VDC 10 A 50 A 12 mOhms 1210 (3225 metric) - 40 C + 85 C Reel
Littelfuse Resettable Fuses - PPTC 6V 7.0A-HD 50A SMD
Datasheet
Non-Stocked Lead-Time 13 Weeks
Min.: 3,000
Mult.: 3,000
Reel: 3,000
Low Rho PCB Mount SMD/SMT 7 A 1210 (3225 metric) - 40 C + 85 C Reel
Littelfuse Resettable Fuses - PPTC 15V .5A
Datasheet
Non-Stocked
Min.: 8,000
Mult.: 8,000
Reel: 8,000

1812L SMD/SMT SMD/SMT 500 mA 15 V 1 A 40 A 1 Ohms 1812 (4532 metric) - 40 C + 85 C Reel
Littelfuse Resettable Fuses - PPTC 13.2V .75A
Datasheet
Non-Stocked
Min.: 8,000
Mult.: 8,000
Reel: 8,000

1812L SMD/SMT SMD/SMT 750 mA 13.2 V 1.5 A 40 A 420 mOhms 1812 (4532 metric) - 40 C + 85 C Reel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1812 LoRho SL 1.90A
Datasheet
Non-Stocked Lead-Time 13 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 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
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1812 LoRho SL 2.7A
Datasheet
Non-Stocked
Min.: 2,000
Mult.: 2,000
Reel: 2,000

Low Rho SMD/SMT SMD/SMT 2.7 A 6 V 7 A 50 A 22 mOhms 1812 (4532 metric) - 40 C + 85 C Reel
Littelfuse Resettable Fuses - PPTC 6V 7.5A 1812 SL PTC POLY SMT
Datasheet
Non-Stocked
Min.: 2,000
Mult.: 2,000
Reel: 2,000

Low Rho PCB Mount SMD/SMT 6 V - 40 C + 85 C Reel
Littelfuse Resettable Fuses - PPTC NANOSMD500LR-D-2
Datasheet
Non-Stocked
Min.: 3,000
Mult.: 3,000

miniASMD PCB Mount SMD/SMT 1206 (3216 metric)
Littelfuse Resettable Fuses - PPTC PolySwitch Surface Mount Resettable PPTC
Datasheet
Non-Stocked
Min.: 3,000
Mult.: 3,000
Reel: 3,000

SMDC SMD/SMT SMD/SMT 3.1 A 18 V 6 A 50 A 36 mOhms 2920 (7450 metric) - 40 C + 85 C Reel
Littelfuse Resettable Fuses - PPTC AUTOMOTIVE POLY SWITCH Non-Stocked
Min.: 2,000
Mult.: 2,000
Reel: 2,000

ASMD PCB Mount SMD/SMT 900 mA 33 V 2.16 A 40 A 480 mOhms - 40 C + 85 C Reel
Littelfuse Resettable Fuses - PPTC 1.27A 16V SMD AEC-Q200
Datasheet
Non-Stocked Lead-Time 15 Weeks
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

ASMD SMD/SMT SMD/SMT 1.27 A 16 VDC 2.95 A 40 A 250 mOhms 3425 (8764 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 1.2A 33V SMD AEC-Q200
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1
Mult.: 1
Reel: 1,500

ASMD SMD/SMT SMD/SMT 1.2 A 33 VDC 2.88 A 40 A 230 mOhms 3425 (8763 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC 1.97A 16V SMD AEC-Q200
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1,500
Mult.: 1,500
Reel: 1,500

ASMD SMD/SMT SMD/SMT 1.97 A 16 VDC 5 A 40 A 85 mOhms 3425 (8764 metric) - 40 C + 85 C AEC-Q100 Reel
Littelfuse Resettable Fuses - PPTC
Datasheet
Non-Stocked Lead-Time 13 Weeks
Min.: 20,000
Mult.: 4,000
Reel: 4,000

nanoASMDCH PCB Mount SMD/SMT 100 mA 30 V 350 mA 10 A 10 Ohms - 40 C + 85 C Reel
Littelfuse Resettable Fuses - PPTC 24Vdc 20A SMD 7555MM 2920IN
Datasheet
Non-Stocked Lead-Time 20 Weeks
Min.: 3,000
Mult.: 3,000
Reel: 3,000

SMDC PCB Mount SMD/SMT 2920 (7351 metric) + 125 C Reel