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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 (IDR) Filter the results in the table by unit price based on your quantity.	Qty.
PTC (Positive Temperature Coefficient) Thermistors 2.2 OHM 20% SMD 0805 PRG21BC2R2MM1RA Murata Electronics 1: Rp11.007,60 4.445In Stock 8.000Expected 11/11/2026	Mfr. Part No. PRG21BC2R2MM1RA Mouser Part No 81-PRG21BC2R2MM1RA	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 2.2 OHM 20% SMD 0805 Learn More about Murata Electronics murata prg ptc thermistors	Datasheet	4.445In Stock 8.000Expected 11/11/2026	Cut Tape Rp11.007,60 Rp10.035,26 Rp9.411,50 Rp8.347,43 View Reel Rp5.577,18 Rp7.705,32 Rp6.916,44 Rp6.384,41 Rp5.889,07 Rp5.577,18 MouseReel Available	Min.: 1 Mult.: 1 : 4.000
PTC (Positive Temperature Coefficient) Thermistors PRG21BC3R3MM1RA Murata Electronics 1: Rp11.557,98 2.071In Stock	Mfr. Part No. PRG21BC3R3MM1RA Mouser Part No 81-PRG21BC3R3MM1RA	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors Learn More about Murata Electronics murata prg ptc thermistors	Datasheet	2.071In Stock	Cut Tape Rp11.557,98 Rp10.640,68 Rp10.292,11 Rp8.824,43 View Reel Rp5.944,10 Rp8.145,62 Rp7.320,05 Rp6.751,33 Rp6.237,64 Rp5.944,10 MouseReel Available	Min.: 1 Mult.: 1 : 4.000
PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603 PRF18BB471QB5RB Murata Electronics 1: Rp6.604,56 8In Stock 4.000Expected 25/11/2026	Mfr. Part No. PRF18BB471QB5RB Mouser Part No 81-PRF18BB471QB5RB	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603 Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	8In Stock 4.000Expected 25/11/2026	Cut Tape Rp6.604,56 Rp6.145,91 Rp5.430,42 Rp5.008,46 Reel Rp3.467,39 View Rp4.458,08 Rp3.999,43 Rp3.394,01 Rp3.375,66 MouseReel Available	Min.: 1 Mult.: 1 : 4.000
Aluminium Organic Polymer Capacitors ECASD40E337M006KA0 Murata Electronics 1: Rp34.123,56 2.998Expected 07/01/2027	Mfr. Part No. ECASD40E337M006KA0 Mouser Part No 81-ECASD40E337M006KA	Murata Electronics	Aluminium Organic Polymer Capacitors Learn More about Murata Electronics murataecaspolymer	Datasheet	2.998Expected 07/01/2027	Cut Tape Rp34.123,56 Rp23.115,96 Rp18.529,46 Rp16.676,51 Reel Rp12.090,01 View Rp13.080,70 Rp11.521,29 MouseReel Available	Min.: 1 Mult.: 1 Max.: 9.000 : 3.000
PTC (Positive Temperature Coefficient) Thermistors PRF18BD471RB5RB Murata Electronics 1: Rp7.521,86 7.599Expected 04/12/2026	Mfr. Part No. PRF18BD471RB5RB Mouser Part No 81-PRF18BD471RB5RB	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	7.599Expected 04/12/2026	Cut Tape Rp7.521,86 Rp6.989,83 Rp6.182,60 Rp5.889,07 Reel Rp4.348,00 View Rp5.283,65 Rp4.586,50 Rp4.182,89 Rp4.091,16 MouseReel Available	Min.: 1 Mult.: 1 : 4.000
PTC (Positive Temperature Coefficient) Thermistors PRF18BB471RB5RB Murata Electronics 1: Rp4.403,04 3.961Expected 11/12/2026	Mfr. Part No. PRF18BB471RB5RB Mouser Part No 81-PRF18BB471RB5RB	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	3.961Expected 11/12/2026	Cut Tape Rp4.403,04 Rp4.017,77 Rp3.522,43 Rp3.338,97 Reel Rp2.384,98 View Rp2.880,32 Rp2.568,44 Rp2.146,48 Rp2.091,44 MouseReel Available	Min.: 1 Mult.: 1 : 4.000
PTC (Positive Temperature Coefficient) Thermistors PRG21AR220MS5RA Murata Electronics 1: Rp18.162,54 4.000Expected 30/11/2026	Mfr. Part No. PRG21AR220MS5RA Mouser Part No 81-PRG21AR220MS5RA	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors Learn More about Murata Electronics murata prg ptc thermistors	Datasheet	4.000Expected 30/11/2026	Cut Tape Rp18.162,54 Rp13.796,19 Rp11.888,21 Rp11.484,60 View Reel Rp6.347,72 Rp9.778,42 Rp8.494,20 Rp7.503,51 Rp6.347,72	Min.: 1 Mult.: 1 Max.: 12.000 : 4.000
PTC (Positive Temperature Coefficient) Thermistors 1 OHM 20% SMD 0603 PRG18BC1R0MM1RB Murata Electronics 1: Rp7.338,40 4.000Expected 14/01/2027 NRND	Mfr. Part No. PRG18BC1R0MM1RB Mouser Part No 81-PRG18BC1R0MM1RB NRND	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 1 OHM 20% SMD 0603 Learn More about Murata Electronics murata prg ptc thermistors	Datasheet	4.000Expected 14/01/2027	Cut Tape Rp7.338,40 Rp6.622,91 Rp5.503,80 Rp4.568,15 Reel Rp3.614,16 View Rp4.219,58 Rp3.779,28 Rp3.449,05 Rp3.247,24 MouseReel Available	Min.: 1 Mult.: 1 : 4.000
PTC (Positive Temperature Coefficient) Thermistors PRF03BB541NB7RL Murata Electronics 1: Rp3.302,28 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. PRF03BB541NB7RL Mouser Part No 81-PRF03BB541NB7RL	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	Non-Stocked Lead-Time 12 Weeks	Cut Tape Rp3.302,28 Rp2.733,55 Rp2.403,33 Rp1.926,33 View Reel Rp1.265,87 Rp1.687,83 Rp1.284,22 Rp1.265,87	Min.: 1 Mult.: 1 : 4.000
PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0805 PRF21AR471QB5RA Murata Electronics 1: Rp6.421,10 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. PRF21AR471QB5RA Mouser Part No 81-PRF21AR471QB5RA	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0805 Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	Non-Stocked Lead-Time 12 Weeks	Cut Tape Rp6.421,10 Rp6.035,83 Rp5.320,34 Rp5.063,50 Reel Rp3.724,24 View Rp4.513,12 Rp3.889,35 Rp3.595,82 Rp3.540,78 MouseReel Available	Min.: 1 Mult.: 1 : 4.000
PTC (Positive Temperature Coefficient) Thermistors PRF21AS471QB5RA Murata Electronics 4.000: Rp3.779,28 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. PRF21AS471QB5RA Mouser Part No 81-PRF21AS471QB5RA	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel Rp3.779,28 Rp3.632,51	Min.: 4.000 Mult.: 4.000 : 4.000
PTC (Positive Temperature Coefficient) Thermistors PRG18BB221MS1RB Murata Electronics 4.000: Rp4.494,77 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. PRG18BB221MS1RB Mouser Part No 81-PRG18BB221MS1RB	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors Learn More about Murata Electronics murata prg ptc thermistors	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel Rp4.494,77	Min.: 4.000 Mult.: 4.000 : 4.000
PTC (Positive Temperature Coefficient) Thermistors PRG18BB470MS1RB Murata Electronics 4.000: Rp4.274,62 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. PRG18BB470MS1RB Mouser Part No 81-PRG18BB470MS1RB	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors Learn More about Murata Electronics murata prg ptc thermistors	Datasheet	Non-Stocked Lead-Time 12 Weeks	Rp4.274,62	Min.: 4.000 Mult.: 4.000
PTC (Positive Temperature Coefficient) Thermistors PRG18BB471MS1RB Murata Electronics 4.000: Rp4.274,62 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. PRG18BB471MS1RB Mouser Part No 81-PRG18BB471MS1RB	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors Learn More about Murata Electronics murata prg ptc thermistors	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel Rp4.274,62	Min.: 4.000 Mult.: 4.000 : 4.000
PTC (Positive Temperature Coefficient) Thermistors PRG21AR220MB1RK Murata Electronics 1: Rp11.924,90 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. PRG21AR220MB1RK Mouser Part No 81-PRG21AR220MB1RK	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors Learn More about Murata Electronics murata prg ptc thermistors	Datasheet	Non-Stocked Lead-Time 12 Weeks	Cut Tape Rp11.924,90 Rp9.044,58 Rp7.778,70 Rp7.521,86 View Reel Rp4.494,77 Rp6.402,75 Rp5.558,84 Rp5.155,23 Rp4.494,77 MouseReel Available	Min.: 1 Mult.: 1 : 3.000

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POSISTOR® PTC Thermistors

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