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POSISTOR® PTC Thermistors

Murata POSISTOR^® Positive Temperature Coefficient (PTC) Thermistors are ideal for circuit protection in a variety of applications, such as temperature sensor and temperature compensation. These devices are also suitable for current control in common household appliances, humidifiers, dryers of all kinds, refrigerators, freezers, and air conditioners. In a conventional NTC thermistor, the resistance decreases when the temperature increases, but for the Murata PTC thermistors, the resistance rises sharply when their temperature exceeds a specific temperature.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (RON) Filter the results in the table by unit price based on your quantity.	Qty.
PTC (Positive Temperature Coefficient) Thermistors 15 OHM 20% SMD 0805 PRG21BB150MB1RK Murata Electronics 1: 2,62 lei 9.094In Stock	Mfr. Part No. PRG21BB150MB1RK Mouser Part No 81-PRG21BB150MB1RK	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 15 OHM 20% SMD 0805 Learn More about Murata Electronics murata prg ptc thermistors	Datasheet	9.094In Stock	Cut Tape 2,62 lei 2,39 lei 1,99 lei 1,92 lei View Reel 1,19 lei 1,82 lei 1,65 lei 1,56 lei 1,47 lei 1,19 lei MouseReel Available	Min.: 1 Mult.: 1 : 3.000
PTC (Positive Temperature Coefficient) Thermistors 0.2 OHM 20% SMD 0805 PRG21BC0R2MM1RA Murata Electronics 1: 3,45 lei 8.124In Stock	Mfr. Part No. PRG21BC0R2MM1RA Mouser Part No 81-PRG21BC0R2MM1RA	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 0.2 OHM 20% SMD 0805 Learn More about Murata Electronics murata prg ptc thermistors	Datasheet	8.124In Stock	Cut Tape 3,45 lei 3,16 lei 2,62 lei 2,51 lei View Reel 1,44 lei 2,42 lei 2,18 lei 2,06 lei 1,63 lei 1,44 lei MouseReel Available	Min.: 1 Mult.: 1 : 4.000
PTC (Positive Temperature Coefficient) Thermistors PRF15BA102RB6RC Murata Electronics 1: 0,829 lei 9.809In Stock	Mfr. Part No. PRF15BA102RB6RC Mouser Part No 81-PRF15BA102RB6RC	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	9.809In Stock	Cut Tape 0,829 lei 0,685 lei 0,605 lei 0,482 lei View Reel 0,305 lei 0,423 lei 0,407 lei 0,364 lei 0,305 lei MouseReel Available	Min.: 1 Mult.: 1 : 10.000
PTC (Positive Temperature Coefficient) Thermistors 0.6 OHM 20% SMD 0805 PRG21BC0R6MM1RA Murata Electronics 1: 2,99 lei 3.820In Stock	Mfr. Part No. PRG21BC0R6MM1RA Mouser Part No 81-PRG21BC0R6MM1RA	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 0.6 OHM 20% SMD 0805 Learn More about Murata Electronics murata prg ptc thermistors	Datasheet	3.820In Stock	Cut Tape 2,99 lei 2,76 lei 2,61 lei 2,29 lei View Reel 1,55 lei 2,12 lei 1,90 lei 1,75 lei 1,62 lei 1,55 lei MouseReel Available	Min.: 1 Mult.: 1 : 4.000
PTC (Positive Temperature Coefficient) Thermistors PRF18BE471RB5RB Murata Electronics 1: 1,89 lei 3.760In Stock	Mfr. Part No. PRF18BE471RB5RB Mouser Part No 81-PRF18BE471RB5RB	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	3.760In Stock	Cut Tape 1,89 lei 1,75 lei 1,55 lei 1,48 lei Reel 1,06 lei View 1,33 lei 1,11 lei 1,01 lei 0,995 lei MouseReel Available	Min.: 1 Mult.: 1 : 4.000
PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0805 PRF21BC471QB5RA Murata Electronics 1: 2,12 lei 5.720In Stock	Mfr. Part No. PRF21BC471QB5RA Mouser Part No 81-PRF21BC471QB5RA	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0805 Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	5.720In Stock	Cut Tape 2,12 lei 1,81 lei 1,56 lei 1,28 lei Reel 0,861 lei View 1,13 lei 0,936 lei 0,856 lei 0,845 lei MouseReel Available	Min.: 1 Mult.: 1 : 4.000
PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0805 PRF21BE471QB5RA Murata Electronics 1: 1,75 lei 6.631In Stock	Mfr. Part No. PRF21BE471QB5RA Mouser Part No 81-PRF21BE471QB5RA	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0805 Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	6.631In Stock	Cut Tape 1,75 lei 1,64 lei 1,45 lei 1,28 lei View Reel 0,851 lei 1,13 lei 0,952 lei 0,851 lei MouseReel Available	Min.: 1 Mult.: 1 : 4.000
PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603 PRF18BG471RB5RB Murata Electronics 1: 1,89 lei 4.032In Stock	Mfr. Part No. PRF18BG471RB5RB Mouser Part No 81-PRF18BG471RB5RB	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603 Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	4.032In Stock	1,89 lei 1,73 lei 1,55 lei 1,35 lei View 1,20 lei 1,11 lei 1,10 lei 1,01 lei 0,99 lei	Min.: 1 Mult.: 1
PTC (Positive Temperature Coefficient) Thermistors 0603 1kohm 125+/-5degC Curie Point 110degC PRF03BA102QB7RL Murata Electronics 1: 0,599 lei 12.000In Stock New Product	Mfr. Part No. PRF03BA102QB7RL Mouser Part No 81-PRF03BA102QB7RL New Product	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 0603 1kohm 125+/-5degC Curie Point 110degC Learn More about Murata Electronics murata auto prf ptc thermistors	Datasheet	12.000In Stock	Cut Tape 0,599 lei 0,508 lei 0,444 lei 0,375 lei View Reel 0,235 lei 0,326 lei 0,31 lei 0,278 lei 0,268 lei 0,235 lei	Min.: 1 Mult.: 1 : 15.000
PTC (Positive Temperature Coefficient) Thermistors 0603 1kohm 125+/-5degC Curie Point 110degC PRF03BA102QS7RL Murata Electronics 1: 0,738 lei 10.400In Stock New Product	Mfr. Part No. PRF03BA102QS7RL Mouser Part No 81-PRF03BA102QS7RL New Product	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 0603 1kohm 125+/-5degC Curie Point 110degC Learn More about Murata Electronics murata auto prf ptc thermistors	Datasheet	10.400In Stock	Cut Tape 0,738 lei 0,61 lei 0,54 lei 0,433 lei View Reel 0,278 lei 0,38 lei 0,364 lei 0,326 lei 0,31 lei 0,278 lei	Min.: 1 Mult.: 1 : 15.000
PTC (Positive Temperature Coefficient) Thermistors 0603 1kohm 95+/-5degC Curie Point 80degC PRF03BD102QB7RL Murata Electronics 1: 0,599 lei 11.920In Stock New Product	Mfr. Part No. PRF03BD102QB7RL Mouser Part No 81-PRF03BD102QB7RL New Product	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 0603 1kohm 95+/-5degC Curie Point 80degC Learn More about Murata Electronics murata auto prf ptc thermistors	Datasheet	11.920In Stock	Cut Tape 0,599 lei 0,508 lei 0,444 lei 0,375 lei View Reel 0,235 lei 0,326 lei 0,31 lei 0,278 lei 0,268 lei 0,235 lei	Min.: 1 Mult.: 1 : 15.000
PTC (Positive Temperature Coefficient) Thermistors 0603 1kohm 95+/-5degC Curie Point 80degC PRF03BD102QS7RL Murata Electronics 1: 0,738 lei 11.968In Stock New Product	Mfr. Part No. PRF03BD102QS7RL Mouser Part No 81-PRF03BD102QS7RL New Product	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 0603 1kohm 95+/-5degC Curie Point 80degC Learn More about Murata Electronics murata auto prf ptc thermistors	Datasheet	11.968In Stock	Cut Tape 0,738 lei 0,61 lei 0,54 lei 0,433 lei View Reel 0,278 lei 0,38 lei 0,364 lei 0,326 lei 0,31 lei 0,278 lei	Min.: 1 Mult.: 1 : 15.000
PTC (Positive Temperature Coefficient) Thermistors 0.6x0.3mm 1kohm 115+/-5degC PRF03BB102QB7RL Murata Electronics 1: 0,508 lei 13.539In Stock New Product	Mfr. Part No. PRF03BB102QB7RL Mouser Part No 81-PRF03BB102QB7RL New Product	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 0.6x0.3mm 1kohm 115+/-5degC Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	13.539In Stock	Cut Tape 0,508 lei 0,455 lei 0,396 lei 0,38 lei View Reel 0,246 lei 0,332 lei 0,31 lei 0,278 lei 0,257 lei 0,246 lei	Min.: 1 Mult.: 1 : 15.000
PTC (Positive Temperature Coefficient) Thermistors 0.6x0.3mm 1kohm 105+/-5degC PRF03BC102QB7RL Murata Electronics 1: 0,508 lei 14.465In Stock New Product	Mfr. Part No. PRF03BC102QB7RL Mouser Part No 81-PRF03BC102QB7RL New Product	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 0.6x0.3mm 1kohm 105+/-5degC Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	14.465In Stock	Cut Tape 0,508 lei 0,455 lei 0,396 lei 0,38 lei View Reel 0,246 lei 0,332 lei 0,31 lei 0,278 lei 0,257 lei 0,246 lei	Min.: 1 Mult.: 1 : 15.000
PTC (Positive Temperature Coefficient) Thermistors 33 OHM 20% SMD 0603 PRG18BB330MB1RB Murata Electronics 1: 1,15 lei 142.834In Stock	Mfr. Part No. PRG18BB330MB1RB Mouser Part No 81-PRG18BB330MB1RB	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 33 OHM 20% SMD 0603 Learn More about Murata Electronics murata prg ptc thermistors	Datasheet	142.834In Stock	Cut Tape 1,15 lei 1,06 lei 0,877 lei 0,733 lei Reel 0,471 lei View 0,696 lei 0,514 lei 0,423 lei 0,417 lei MouseReel Available	Min.: 1 Mult.: 1 : 4.000
PTC (Positive Temperature Coefficient) Thermistors PRF15BB102RB6RC Murata Electronics 1: 0,69 lei 56.774In Stock	Mfr. Part No. PRF15BB102RB6RC Mouser Part No 81-PRF15BB102RB6RC	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	56.774In Stock	Cut Tape 0,69 lei 0,621 lei 0,54 lei 0,498 lei Reel 0,348 lei View 0,423 lei 0,407 lei 0,364 lei 0,332 lei MouseReel Available	Min.: 1 Mult.: 1 : 10.000
PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603 PRF18BA471QB5RB Murata Electronics 1: 0,92 lei 64.029In Stock	Mfr. Part No. PRF18BA471QB5RB Mouser Part No 81-PRF18BA471QB5RB	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603 Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	64.029In Stock	Cut Tape 0,92 lei 0,835 lei 0,781 lei 0,728 lei View Reel 0,519 lei 0,637 lei 0,572 lei 0,519 lei MouseReel Available	Min.: 1 Mult.: 1 Max.: 4.000 : 4.000
PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603 PRF18BG471QB5RB Murata Electronics 1: 0,781 lei 50.053In Stock 32.000Expected 12/31/2026	Mfr. Part No. PRF18BG471QB5RB Mouser Part No 81-PRF18BG471QB5RB	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603 Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	50.053In Stock 32.000Expected 12/31/2026	Cut Tape 0,781 lei 0,706 lei 0,621 lei 0,589 lei Reel 0,428 lei View 0,514 lei 0,444 lei 0,407 lei 0,396 lei MouseReel Available	Min.: 1 Mult.: 1 : 4.000
PTC (Positive Temperature Coefficient) Thermistors 100 OHM 20% SMD 0603 PRG18BB101MB1RB Murata Electronics 1: 1,20 lei 37.161In Stock 32.000Expected 12/3/2026	Mfr. Part No. PRG18BB101MB1RB Mouser Part No 81-PRG18BB101MB1RB	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 100 OHM 20% SMD 0603 Learn More about Murata Electronics murata prg ptc thermistors	Datasheet	37.161In Stock 32.000Expected 12/3/2026	Cut Tape 1,20 lei 1,08 lei 0,893 lei 0,744 lei Reel 0,482 lei View 0,701 lei 0,524 lei 0,433 lei 0,423 lei MouseReel Available	Min.: 1 Mult.: 1 : 4.000
PTC (Positive Temperature Coefficient) Thermistors 220 OHM 20% SMD 0603 PRG18BB221MB1RB Murata Electronics 1: 1,29 lei 26.229In Stock 96.000On Order	Mfr. Part No. PRG18BB221MB1RB Mouser Part No 81-PRG18BB221MB1RB	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 220 OHM 20% SMD 0603 Learn More about Murata Electronics murata prg ptc thermistors	Datasheet	26.229In Stock 96.000On Order On Order Ship Dates Mfr. No: PRG18BB221MB1RB Stock: 26.229 Can Dispatch Immediately On Order: 36.000 Expected 12/3/2026 60.000 Expected 12/24/2026 Factory Lead Time: 12 Weeks	Cut Tape 1,29 lei 1,13 lei 0,915 lei 0,845 lei Reel 0,567 lei View 0,701 lei 0,615 lei 0,508 lei 0,482 lei MouseReel Available	Min.: 1 Mult.: 1 : 4.000
PTC (Positive Temperature Coefficient) Thermistors 0603 47ohm 20% SMD PRG18BB470MB1RB Murata Electronics 1: 1,70 lei 53.406In Stock 44.000Expected 11/26/2026	Mfr. Part No. PRG18BB470MB1RB Mouser Part No 81-PRG18BB470MB1RB	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 0603 47ohm 20% SMD Learn More about Murata Electronics murata prg ptc thermistors	Datasheet	53.406In Stock 44.000Expected 11/26/2026	Cut Tape 1,70 lei 1,51 lei 1,27 lei 1,05 lei Reel 0,733 lei View 0,99 lei 0,867 lei 0,669 lei MouseReel Available	Min.: 1 Mult.: 1 : 4.000
PTC (Positive Temperature Coefficient) Thermistors 470 OHM 20% SMD 0603 PRG18BB471MB1RB Murata Electronics 1: 1,15 lei 37.698In Stock 24.000Expected 11/20/2026	Mfr. Part No. PRG18BB471MB1RB Mouser Part No 81-PRG18BB471MB1RB	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 470 OHM 20% SMD 0603 Learn More about Murata Electronics murata prg ptc thermistors	Datasheet	37.698In Stock 24.000Expected 11/20/2026	Cut Tape 1,15 lei 1,06 lei 0,877 lei 0,733 lei Reel 0,498 lei View 0,701 lei 0,546 lei 0,444 lei 0,428 lei MouseReel Available	Min.: 1 Mult.: 1 : 4.000
PTC (Positive Temperature Coefficient) Thermistors 22 OHM 20% SMD 0805 PRG21BB220MB1RK Murata Electronics 1: 2,58 lei 6.000In Stock 15.000On Order	Mfr. Part No. PRG21BB220MB1RK Mouser Part No 81-PRG21BB220MB1RK	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 22 OHM 20% SMD 0805 Learn More about Murata Electronics murata prg ptc thermistors	Datasheet	6.000In Stock 15.000On Order On Order Ship Dates Mfr. No: PRG21BB220MB1RK Stock: 6.000 Can Dispatch Immediately On Order: 6.000 Expected 12/8/2026 9.000 Expected 12/11/2026 Factory Lead Time: 12 Weeks	Cut Tape 2,58 lei 2,38 lei 2,28 lei 1,97 lei View Reel 1,19 lei 1,82 lei 1,64 lei 1,51 lei 1,40 lei 1,19 lei MouseReel Available	Min.: 1 Mult.: 1 : 3.000
PTC (Positive Temperature Coefficient) Thermistors 4.7 OHM 20% SMD 0805 PRG21BC4R7MM1RA Murata Electronics 1: 2,30 lei 8.226In Stock	Mfr. Part No. PRG21BC4R7MM1RA Mouser Part No 81-PRG21BC4R7MM1RA	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 4.7 OHM 20% SMD 0805 Learn More about Murata Electronics murata prg ptc thermistors	Datasheet	8.226In Stock	Cut Tape 2,30 lei 2,16 lei 2,02 lei 1,92 lei View Reel 1,40 lei 1,82 lei 1,65 lei 1,55 lei 1,40 lei MouseReel Available	Min.: 1 Mult.: 1 : 4.000
PTC (Positive Temperature Coefficient) Thermistors 2.2 OHM 20% SMD 0603 PRG18BC2R2MM1RB Murata Electronics 1: 1,89 lei Non-Stocked Lead-Time 12 Weeks NRND	Mfr. Part No. PRG18BC2R2MM1RB Mouser Part No 81-PRG18BC2R2MM1RB NRND	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 2.2 OHM 20% SMD 0603 Learn More about Murata Electronics murata prg ptc thermistors	Datasheet	Non-Stocked Lead-Time 12 Weeks	Cut Tape 1,89 lei 1,72 lei 1,34 lei 1,20 lei Reel 0,77 lei View 1,09 lei 0,845 lei 0,696 lei 0,69 lei MouseReel Available	Min.: 1 Mult.: 1 : 4.000

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POSISTOR® PTC Thermistors

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