Thermistors – Mouser Japan

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Automotive Circuit Protection / Thermistors

Murata Electronics Automotive Circuit Protection and Thermistors include a wide lineup of characteristics for various electronic devices, including smartphones and wearable terminals, and automobile/automotive devices. Heat is generated by applied voltage and current, and the resistance changes along with the temperature. Murata thermistors function as a heating element and thermo-sensitive device and play an active role in various applications, such as temperature sensors, circuit protection, and temperature compensation.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (JPY) Filter the results in the table by unit price based on your quantity.	Qty.	Product Type	Resistance	Mounting Style	Termination Style	Package / Case
PTC Thermistors PRG15BC3R3MM1RC Murata Electronics 1: ¥28.2 11,013In Stock NRND	Mfr. Part # PRG15BC3R3MM1RC Mouser Part # 81-PRG15BC3R3MM1RC NRND	Murata Electronics	PTC Thermistors Learn More about Murata Electronics murata prg ptc thermistors	Datasheet	11,013In Stock	Cut Tape ¥28.2 ¥25.9 ¥22.8 ¥21.4 Reel ¥15.6 View ¥18.8 ¥17.9 ¥16.1 ¥13.8 MouseReel Available	Min.: 1 Mult.: 1 : 10,000	PTC Thermistors	3.3 Ohms	PCB Mount	SMD/SMT	0402 (1005 metric)
PTC Thermistors 2.2 OHM 20% SMD 0603 PRG18BC2R2MM1RB Murata Electronics 1: ¥68.1 Non-Stocked Lead-Time 12 Weeks NRND	Mfr. Part # PRG18BC2R2MM1RB Mouser Part # 81-PRG18BC2R2MM1RB NRND	Murata Electronics	PTC 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 ¥68.1 ¥62 ¥48.5 ¥43.4 Reel ¥27.9 View ¥39.4 ¥30.6 ¥25.1 ¥24.9 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	PTC Thermistors	2.2 Ohms	PCB Mount	SMD/SMT	0603 (1608 metric)
PTC Thermistors 3.3 OHM 20% SMD 0603 PRG18BC3R3MM1RB Murata Electronics 1: ¥64.8 3,344In Stock NRND	Mfr. Part # PRG18BC3R3MM1RB Mouser Part # 81-PRG18BC3R3MM1RB NRND	Murata Electronics	PTC Thermistors 3.3 OHM 20% SMD 0603 Learn More about Murata Electronics murata prg ptc thermistors	Datasheet	3,344In Stock	Cut Tape ¥64.8 ¥59.3 ¥49.3 ¥40.9 Reel ¥32.4 View ¥37.7 ¥33.7 ¥29.4 ¥28.9 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	PTC Thermistors	3.3 Ohms	PCB Mount	SMD/SMT	0603 (1608 metric)
PTC Thermistors PRG21BC2R2MM1RK Murata Electronics 1: ¥89.7 1,384In Stock NRND	Mfr. Part # PRG21BC2R2MM1RK Mouser Part # 81-PRG21BC2R2MM1RK NRND	Murata Electronics	PTC Thermistors Learn More about Murata Electronics murata prg ptc thermistors	Datasheet	1,384In Stock	Cut Tape ¥89.7 ¥83.7 ¥78.1 ¥74.2 View Reel ¥53.7 ¥70.8 ¥63.8 ¥60.6 ¥53.7 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	PTC Thermistors	2.2 Ohms	PCB Mount	SMD/SMT	0805 (2012 metric)
PTC Thermistors PRG21BC4R7MM1RK Murata Electronics 1: ¥89.7 3,746In Stock NRND	Mfr. Part # PRG21BC4R7MM1RK Mouser Part # 81-PRG21BC4R7MM1RK NRND	Murata Electronics	PTC Thermistors Learn More about Murata Electronics murata prg ptc thermistors	Datasheet	3,746In Stock	Cut Tape ¥89.7 ¥83.7 ¥78.1 ¥74.2 View Reel ¥54.6 ¥70.8 ¥63.8 ¥60.6 ¥54.6 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	PTC Thermistors
PTC Thermistors PRG21BC6R8MM1RK Murata Electronics 1: ¥139.5 1,045In Stock NRND	Mfr. Part # PRG21BC6R8MM1RK Mouser Part # 81-PRG21BC6R8MM1RK NRND	Murata Electronics	PTC Thermistors Learn More about Murata Electronics murata prg ptc thermistors	Datasheet	1,045In Stock	Cut Tape ¥139.5 ¥107 ¥92 ¥88.9 View Reel ¥50.5 ¥75.7 ¥65.8 ¥60.6 ¥50.5 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	PTC Thermistors
NTC Thermistors 100K OHM 1% NCU18WF104F6SRB Murata Electronics 1: ¥24.9 65,936In Stock	Mfr. Part # NCU18WF104F6SRB Mouser Part # 81-NCU18WF104F6SRB	Murata Electronics	NTC Thermistors 100K OHM 1% Learn More about Murata Electronics murata ncu auto thermistors	Datasheet	65,936In Stock	Cut Tape ¥24.9 ¥23.3 ¥20.4 ¥19.1 Reel ¥13.6 View ¥17.1 ¥14.6 ¥13 ¥12.6 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	NTC Thermistors	100 kOhms	PCB Mount	SMD/SMT	0603 (1608 metric)
NTC Thermistors 10K OHM 1608 SMD 1% NCU18XH103F6SRB Murata Electronics 1: ¥21.6 267,932In Stock	Mfr. Part # NCU18XH103F6SRB Mouser Part # 81-NCU18XH103F6SRB	Murata Electronics	NTC Thermistors 10K OHM 1608 SMD 1% Learn More about Murata Electronics murata ncu auto thermistors	Datasheet	267,932In Stock	Cut Tape ¥21.6 ¥19.4 ¥16.9 ¥15.8 Reel ¥11.1 View ¥14 ¥12.1 ¥10.6 ¥10.3 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	NTC Thermistors	10 kOhms	PCB Mount	SMD/SMT	0603 (1608 metric)
PTC Thermistors 6.8 OHM 20% SMD 0805 PRG21BC6R8MM1RA Murata Electronics 1: ¥83.1 18,291In Stock 16,000Expected 11/30/2026	Mfr. Part # PRG21BC6R8MM1RA Mouser Part # 81-PRG21BC6R8MM1RA	Murata Electronics	PTC Thermistors 6.8 OHM 20% SMD 0805 Learn More about Murata Electronics murata prg ptc thermistors	Datasheet	18,291In Stock 16,000Expected 11/30/2026	Cut Tape ¥83.1 ¥77.9 ¥72.6 ¥69.1 View Reel ¥46.5 ¥65.8 ¥59.3 ¥55.8 ¥46.5 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	PTC Thermistors	6.8 Ohms	PCB Mount	SMD/SMT	0805 (2012 metric)
NTC Thermistors NCG18XH103F0SRB Murata Electronics 1: ¥63.1 121In Stock 4,000Expected 12/3/2026	Mfr. Part # NCG18XH103F0SRB Mouser Part # 81-NCG18XH103F0SRB	Murata Electronics	NTC Thermistors Learn More about Murata Electronics murata automotive circuit protection thermistors	Datasheet	121In Stock 4,000Expected 12/3/2026	¥63.1 ¥58.8 ¥52 ¥49.5 View ¥43.9 ¥40.7 ¥36 ¥34.7 ¥33.9	Min.: 1 Mult.: 1	NTC Thermistors	10 kOhms	PCB Mount	SMD/SMT	0603 (1608 metric)
NTC Thermistors NCU18WF104E6SRB Murata Electronics 1: ¥23.3 1,913In Stock 4,000Expected 3/1/2027	Mfr. Part # NCU18WF104E6SRB Mouser Part # 81-NCU18WF104E6SRB	Murata Electronics	NTC Thermistors Learn More about Murata Electronics murata ncu auto thermistors	Datasheet	1,913In Stock 4,000Expected 3/1/2027	Cut Tape ¥23.3 ¥21.3 ¥18.6 ¥17.4 Reel ¥11.8 View ¥15.3 ¥13.3 ¥11.3 ¥11	Min.: 1 Mult.: 1 : 4,000	NTC Thermistors	100 kOhms	PCB Mount	SMD/SMT	0603 (1608 metric)
PTC Thermistors PTC 0402, 10kOhms, 50%, 32VDC PRF15BB103RB6RC Murata Electronics 1: ¥24.9 19,665In Stock	Mfr. Part # PRF15BB103RB6RC Mouser Part # 81-PRF15BB103RB6RC	Murata Electronics	PTC Thermistors PTC 0402, 10kOhms, 50%, 32VDC Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	19,665In Stock	Cut Tape ¥24.9 ¥22.4 ¥21.3 ¥19.1 Reel ¥12.6 View ¥16.9 ¥16.3 ¥14.8 ¥10.8 MouseReel Available	Min.: 1 Mult.: 1 : 10,000	PTC Thermistors	10 kOhms	PCB Mount	SMD/SMT	0402 (1005 metric)
PTC Thermistors PRF15BC102RB6RC Murata Electronics 1: ¥26.6 2,267In Stock 10,000Expected 11/24/2026	Mfr. Part # PRF15BC102RB6RC Mouser Part # 81-PRF15BC102RB6RC	Murata Electronics	PTC Thermistors Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	2,267In Stock 10,000Expected 11/24/2026	Cut Tape ¥26.6 ¥23.9 ¥23.3 ¥20.1 Reel ¥11.3 View ¥17.6 ¥16.8 ¥14.9 ¥11 MouseReel Available	Min.: 1 Mult.: 1 : 10,000	PTC Thermistors	1 kOhms	PCB Mount	SMD/SMT	0402 (1005 metric)
PTC Thermistors 1 OHM 50% SMD 0402 PRF15BD102RB6RC Murata Electronics 1: ¥24.9 9,576In Stock	Mfr. Part # PRF15BD102RB6RC Mouser Part # 81-PRF15BD102RB6RC	Murata Electronics	PTC Thermistors 1 OHM 50% SMD 0402 Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	9,576In Stock	Cut Tape ¥24.9 ¥22.4 ¥19.6 ¥17.9 Reel ¥12 View ¥15.3 ¥14.6 ¥13.1 ¥11.6 MouseReel Available	Min.: 1 Mult.: 1 : 10,000	PTC Thermistors	1 kOhms	PCB Mount	SMD/SMT	0402 (1005 metric)
PTC Thermistors 470 OHM 50% SMD 0603 PRF18AR471QB5RB Murata Electronics 1: ¥34.9 16,127In Stock	Mfr. Part # PRF18AR471QB5RB Mouser Part # 81-PRF18AR471QB5RB	Murata Electronics	PTC Thermistors 470 OHM 50% SMD 0603 Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	16,127In Stock	Cut Tape ¥34.9 ¥31.7 ¥27.9 ¥24.6 Reel ¥18.6 View ¥21.3 ¥19.1 ¥17.8 MouseReel Available	Min.: 1 Mult.: 1 Max.: 12,000 : 4,000	PTC Thermistors	470 Ohms	PCB Mount	SMD/SMT	0603 (1608 metric)
PTC Thermistors PRF18AS471QB5RB Murata Electronics 1: ¥33.2 2,675In Stock	Mfr. Part # PRF18AS471QB5RB Mouser Part # 81-PRF18AS471QB5RB	Murata Electronics	PTC Thermistors Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	2,675In Stock	Cut Tape ¥33.2 ¥30.1 ¥26.4 ¥24.9 Reel ¥18.1 View ¥21.9 ¥19.1 ¥17.3 ¥16.9 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	PTC Thermistors	470 Ohms	PCB Mount	SMD/SMT	0603 (1608 metric)
PTC Thermistors 470 OHM 50% SMD 0603 PRF18BB471QS5RB Murata Electronics 1: ¥76.4 5,882In Stock	Mfr. Part # PRF18BB471QS5RB Mouser Part # 81-PRF18BB471QS5RB	Murata Electronics	PTC Thermistors 470 OHM 50% SMD 0603 Learn More about Murata Electronics murata auto prf ptc thermistors	Datasheet	5,882In Stock	Cut Tape ¥76.4 ¥71.3 ¥66.4 ¥63.1 View Reel ¥45 ¥60.1 ¥54.1 ¥50.8 ¥45 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	PTC Thermistors	470 Ohms	PCB Mount	SMD/SMT	0603 (1608 metric)
PTC Thermistors PRF18BB471RS5RB Murata Electronics 1: ¥86.4 654In Stock	Mfr. Part # PRF18BB471RS5RB Mouser Part # 81-PRF18BB471RS5RB	Murata Electronics	PTC Thermistors Learn More about Murata Electronics murata auto prf ptc thermistors	Datasheet	654In Stock	Cut Tape ¥86.4 ¥65.4 ¥56.5 ¥46.3 Reel ¥32.2 View ¥40.9 ¥34.7 ¥31.7 ¥31.2 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	PTC Thermistors	470 Ohms	PCB Mount	SMD/SMT	0603 (1608 metric)
PTC Thermistors 470 OHM 50% SMD 0603 PRF18BC471QB5RB Murata Electronics 1: ¥33.2 5,415In Stock	Mfr. Part # PRF18BC471QB5RB Mouser Part # 81-PRF18BC471QB5RB	Murata Electronics	PTC Thermistors 470 OHM 50% SMD 0603 Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	5,415In Stock	Cut Tape ¥33.2 ¥30.1 ¥26.4 ¥24.9 Reel ¥17.6 View ¥21.9 ¥19.1 ¥16.6 ¥16.1 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	PTC Thermistors	470 Ohms	PCB Mount	SMD/SMT	0603 (1608 metric)
PTC Thermistors 470 OHM 50% SMD 0603 PRF18BC471QS5RB Murata Electronics 1: ¥76.4 140In Stock 8,000Expected 1/21/2027	Mfr. Part # PRF18BC471QS5RB Mouser Part # 81-PRF18BC471QS5RB	Murata Electronics	PTC Thermistors 470 OHM 50% SMD 0603 Learn More about Murata Electronics murata auto prf ptc thermistors	Datasheet	140In Stock 8,000Expected 1/21/2027	Cut Tape ¥76.4 ¥71.3 ¥66.4 ¥63.1 View Reel ¥46.2 ¥60.1 ¥54.1 ¥50.8 ¥46.2 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	PTC Thermistors	470 Ohms	PCB Mount	SMD/SMT	0603 (1608 metric)
PTC Thermistors 470 OHM 50% SMD 0603 PRF18BC471RB5RB Murata Electronics 1: ¥68.1 3,481In Stock	Mfr. Part # PRF18BC471RB5RB Mouser Part # 81-PRF18BC471RB5RB	Murata Electronics	PTC Thermistors 470 OHM 50% SMD 0603 Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	3,481In Stock	Cut Tape ¥68.1 ¥63.3 ¥56 ¥53.3 Reel ¥39.9 View ¥47.8 ¥41.5 ¥37 ¥36.9 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	PTC Thermistors	470 Ohms	PCB Mount	SMD/SMT	0603 (1608 metric)
PTC Thermistors 470 OHM 50% SMD 0603 PRF18BD471QB5RB Murata Electronics 1: ¥33.2 6,372In Stock 16,000Expected 11/26/2026	Mfr. Part # PRF18BD471QB5RB Mouser Part # 81-PRF18BD471QB5RB	Murata Electronics	PTC Thermistors 470 OHM 50% SMD 0603 Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	6,372In Stock 16,000Expected 11/26/2026	Cut Tape ¥33.2 ¥30.1 ¥26.4 ¥24.9 View Reel ¥18.1 ¥21.9 ¥19.1 ¥18.1 MouseReel Available	Min.: 1 Mult.: 1 Max.: 4,000 : 4,000	PTC Thermistors	470 Ohms	PCB Mount	SMD/SMT	0603 (1608 metric)
PTC Thermistors 470 OHM 50% SMD 0603 PRF18BE471QB5RB Murata Electronics 1: ¥28.2 17,120In Stock	Mfr. Part # PRF18BE471QB5RB Mouser Part # 81-PRF18BE471QB5RB	Murata Electronics	PTC Thermistors 470 OHM 50% SMD 0603 Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	17,120In Stock	Cut Tape ¥28.2 ¥25.6 ¥22.4 ¥21.3 Reel ¥15.4 View ¥18.6 ¥16.1 ¥14.6 ¥13.8 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	PTC Thermistors	470 Ohms	PCB Mount	SMD/SMT	0603 (1608 metric)
PTC Thermistors 470 OHM 50% SMD 0603 PRF18BF471QB5RB Murata Electronics 1: ¥28.2 6,073In Stock 16,000Expected 1/7/2027	Mfr. Part # PRF18BF471QB5RB Mouser Part # 81-PRF18BF471QB5RB	Murata Electronics	PTC Thermistors 470 OHM 50% SMD 0603 Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	6,073In Stock 16,000Expected 1/7/2027	Cut Tape ¥28.2 ¥25.6 ¥22.4 ¥21.3 View Reel ¥15.4 ¥18.6 ¥16.1 ¥15.4 MouseReel Available	Min.: 1 Mult.: 1 Max.: 4,000 : 4,000	PTC Thermistors	470 Ohms	PCB Mount	SMD/SMT	0603 (1608 metric)
PTC Thermistors PRF18BF471RB5RB Murata Electronics 1: ¥68.1 3,042In Stock	Mfr. Part # PRF18BF471RB5RB Mouser Part # 81-PRF18BF471RB5RB	Murata Electronics	PTC Thermistors Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	3,042In Stock	Cut Tape ¥68.1 ¥63.3 ¥56 ¥53.3 View Reel ¥38.4 ¥47.8 ¥41.5 ¥38.4 MouseReel Available	Min.: 1 Mult.: 1 Max.: 4,000 : 4,000	PTC Thermistors	470 Ohms	PCB Mount	SMD/SMT	0603 (1608 metric)