PTC (Positive Temperature Coefficient) Thermistors

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PRF PTC Thermistors

Murata Electronics PRF Series PTC Thermistors offer a fast response time, 470Ω to 10kΩ resistance range, and 2mm x 1.25mm maximum dimensions. PRF thermistors accurately detect overheating in multiple areas using a very simple circuit through sharp changes in resistance. Using sharp changes in electrical resistance also translates into outstanding noise resistance. Murata PRF Series PTC Thermistors are ideal for mobile phones, power supplies, LED bulbs, and automotive applications.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (SGD) Filter the results in the table by unit price based on your quantity.	Qty.	Series	Resistance	Tolerance	Mounting Style	Termination Style	Minimum Operating Temperature	Maximum Operating Temperature	Packaging
PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0805 PRF21BC471QB5RA Murata Electronics 1: $0.626 6,120In 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	6,120In Stock	Cut Tape $0.626 $0.536 $0.462 $0.379 Reel $0.253 View $0.335 $0.276 $0.252 $0.249 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	PRF	470 Ohms	50 %	PCB Mount	SMD/SMT	- 20 C	+ 120 C	Reel, Cut Tape, MouseReel
PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0805 PRF21BE471QB5RA Murata Electronics 1: $0.517 6,670In 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	6,670In Stock	Cut Tape $0.517 $0.484 $0.428 $0.379 Reel $0.26 View $0.335 $0.282 $0.256 $0.252 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	PRF	470 Ohms	50 %	PCB Mount	SMD/SMT	- 20 C	+ 100 C	Reel, Cut Tape, MouseReel
PTC (Positive Temperature Coefficient) Thermistors PRF15BA102RB6RC Murata Electronics 1: $0.245 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 $0.245 $0.203 $0.178 $0.143 View Reel $0.09 $0.125 $0.12 $0.107 $0.09 MouseReel Available	Min.: 1 Mult.: 1 : 10,000	PRF	1 kOhms	50 %	PCB Mount	SMD/SMT	- 40 C	+ 150 C	Reel, Cut Tape, MouseReel
PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603 PRF18BG471RB5RB Murata Electronics 1: $0.558 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	$0.558 $0.51 $0.458 $0.398 View $0.356 $0.328 $0.326 $0.303 $0.299	Min.: 1 Mult.: 1	PRF	470 Ohms	50 %	PCB Mount	SMD/SMT	- 20 C	+ 90 C	Bulk
PTC (Positive Temperature Coefficient) Thermistors PRF18BE471RB5RB Murata Electronics 1: $0.558 3,860In 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	3,860In Stock	Cut Tape $0.558 $0.518 $0.458 $0.437 Reel $0.317 View $0.392 $0.328 $0.306 $0.301 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	PRF	470 Ohms	50 %	PCB Mount	SMD/SMT	- 20 C	+ 110 C	Reel, Cut Tape, MouseReel
PTC (Positive Temperature Coefficient) Thermistors 0603 1kohm 125+/-5degC Curie Point 110degC PRF03BA102QB7RL Murata Electronics 1: $0.177 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 $0.177 $0.15 $0.132 $0.11 View Reel $0.069 $0.097 $0.092 $0.083 $0.079 $0.069	Min.: 1 Mult.: 1 : 15,000	PRF	1 kOhms	50 %	PCB Mount	SMD/SMT	- 40 C	+ 150 C	Reel, Cut Tape
PTC (Positive Temperature Coefficient) Thermistors 0603 1kohm 125+/-5degC Curie Point 110degC PRF03BA102QS7RL Murata Electronics 1: $0.218 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 $0.218 $0.181 $0.159 $0.128 View Reel $0.083 $0.113 $0.107 $0.097 $0.092 $0.083	Min.: 1 Mult.: 1 : 15,000	PRF	1 kOhms	50 %	PCB Mount	SMD/SMT	- 40 C	+ 150 C	Reel, Cut Tape
PTC (Positive Temperature Coefficient) Thermistors 0603 1kohm 95+/-5degC Curie Point 80degC PRF03BD102QB7RL Murata Electronics 1: $0.177 12,000In 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	12,000In Stock	Cut Tape $0.177 $0.15 $0.132 $0.11 View Reel $0.069 $0.097 $0.092 $0.083 $0.079 $0.069	Min.: 1 Mult.: 1 : 15,000	PRF	1 kOhms	50 %	PCB Mount	SMD/SMT	- 40 C	+ 120 C	Reel, Cut Tape
PTC (Positive Temperature Coefficient) Thermistors 0603 1kohm 95+/-5degC Curie Point 80degC PRF03BD102QS7RL Murata Electronics 1: $0.218 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 $0.218 $0.181 $0.159 $0.128 View Reel $0.083 $0.113 $0.107 $0.097 $0.092 $0.083	Min.: 1 Mult.: 1 : 15,000	PRF	1 kOhms	50 %	PCB Mount	SMD/SMT	- 40 C	+ 150 C	Reel, Cut Tape
PTC (Positive Temperature Coefficient) Thermistors 0.6x0.3mm 1kohm 115+/-5degC PRF03BB102QB7RL Murata Electronics 1: $0.15 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 $0.15 $0.135 $0.117 $0.112 View Reel $0.072 $0.098 $0.092 $0.083 $0.076 $0.072	Min.: 1 Mult.: 1 : 15,000	PRF	1 kOhms	50 %	PCB Mount	SMD/SMT	- 40 C	+ 140 C	Reel, Cut Tape
PTC (Positive Temperature Coefficient) Thermistors 0.6x0.3mm 1kohm 105+/-5degC PRF03BC102QB7RL Murata Electronics 1: $0.15 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 $0.15 $0.135 $0.117 $0.112 View Reel $0.072 $0.098 $0.092 $0.083 $0.076 $0.072	Min.: 1 Mult.: 1 : 15,000	PRF	1 kOhms	50 %	PCB Mount	SMD/SMT	- 40 C	+ 130 C	Reel, Cut Tape
PTC (Positive Temperature Coefficient) Thermistors PRF15BB102RB6RC Murata Electronics 1: $0.204 56,825In 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	56,825In Stock	Cut Tape $0.204 $0.184 $0.16 $0.147 Reel $0.102 View $0.125 $0.12 $0.107 $0.098 MouseReel Available	Min.: 1 Mult.: 1 : 10,000	PRF	1 kOhms	50 %	PCB Mount	SMD/SMT	- 40 C	+ 140 C	Reel, Cut Tape, MouseReel
PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603 PRF18BA471QB5RB Murata Electronics 1: $0.272 64,034In 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	64,034In Stock	Cut Tape $0.272 $0.246 $0.231 $0.215 View Reel $0.154 $0.188 $0.169 $0.154 MouseReel Available	Min.: 1 Mult.: 1 Max.: 4,000 : 4,000	PRF	470 Ohms	50 %	PCB Mount	SMD/SMT	- 20 C	+ 150 C	Reel, Cut Tape, MouseReel
PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603 PRF18BG471QB5RB Murata Electronics 1: $0.231 24,053In Stock 60,000On Order	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	24,053In Stock 60,000On Order On Order Ship Dates Mfr. No: PRF18BG471QB5RB Stock: 24,053 Can Dispatch Immediately On Order: 28,000 Expected 19/10/2026 32,000 Expected 31/12/2026 Factory Lead Time: 13 Weeks	Cut Tape $0.231 $0.209 $0.184 $0.174 Reel $0.126 View $0.152 $0.132 $0.12 $0.117 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	PRF	470 Ohms	50 %	PCB Mount	SMD/SMT	- 20 C	+ 90 C	Reel, Cut Tape, MouseReel
PTC (Positive Temperature Coefficient) Thermistors PRF15BC102RB6RC Murata Electronics 1: $0.245 2,269In Stock 10,000Expected 12/11/2026	Mfr. Part No. PRF15BC102RB6RC Mouser Part No 81-PRF15BC102RB6RC	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	2,269In Stock 10,000Expected 12/11/2026	Cut Tape $0.245 $0.216 $0.19 $0.165 Reel $0.097 View $0.144 $0.137 $0.122 $0.095 MouseReel Available	Min.: 1 Mult.: 1 : 10,000	PRF	1 kOhms	50 %	PCB Mount	SMD/SMT	- 40 C	+ 130 C	Reel, Cut Tape, MouseReel
PTC (Positive Temperature Coefficient) Thermistors PRF18AS471QB5RB Murata Electronics 1: $0.272 2,680In Stock	Mfr. Part No. PRF18AS471QB5RB Mouser Part No 81-PRF18AS471QB5RB	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	2,680In Stock	Cut Tape $0.272 $0.246 $0.216 $0.204 Reel $0.147 View $0.18 $0.156 $0.141 $0.139 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	PRF	470 Ohms	50 %	PCB Mount	SMD/SMT	- 20 C	+ 160 C	Reel, Cut Tape, MouseReel
PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603 PRF18BC471RB5RB Murata Electronics 1: $0.558 3,481In Stock	Mfr. Part No. PRF18BC471RB5RB Mouser Part No 81-PRF18BC471RB5RB	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603 Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	3,481In Stock	Cut Tape $0.558 $0.518 $0.458 $0.437 Reel $0.326 View $0.392 $0.34 $0.303 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	PRF	470 Ohms	50 %	PCB Mount	SMD/SMT	- 20 C	+ 130 C	Reel, Cut Tape, MouseReel
PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603 PRF18BE471QB5RB Murata Electronics 1: $0.231 17,230In Stock	Mfr. Part No. PRF18BE471QB5RB Mouser Part No 81-PRF18BE471QB5RB	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603 Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	17,230In Stock	Cut Tape $0.231 $0.209 $0.184 $0.174 Reel $0.114 View $0.151 $0.124 $0.11 $0.106 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	PRF	470 Ohms	50 %	PCB Mount	SMD/SMT	- 20 C	+ 110 C	Reel, Cut Tape, MouseReel
PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603 PRF18BF471QB5RB Murata Electronics 1: $0.231 4,383In Stock 4,000Expected 29/10/2026	Mfr. Part No. PRF18BF471QB5RB Mouser Part No 81-PRF18BF471QB5RB	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603 Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	4,383In Stock 4,000Expected 29/10/2026	Cut Tape $0.231 $0.209 $0.184 $0.174 View Reel $0.126 $0.152 $0.132 $0.126 MouseReel Available	Min.: 1 Mult.: 1 Max.: 4,000 : 4,000	PRF	470 Ohms	50 %	PCB Mount	SMD/SMT	- 20 C	+ 100 C	Reel, Cut Tape, MouseReel
PTC (Positive Temperature Coefficient) Thermistors PRF18BF471RB5RB Murata Electronics 1: $0.558 3,192In Stock	Mfr. Part No. PRF18BF471RB5RB Mouser Part No 81-PRF18BF471RB5RB	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	3,192In Stock	Cut Tape $0.558 $0.518 $0.458 $0.437 View Reel $0.314 $0.392 $0.34 $0.314 MouseReel Available	Min.: 1 Mult.: 1 Max.: 4,000 : 4,000	PRF	470 Ohms	50 %	PCB Mount	SMD/SMT	- 20 C	+ 100 C	Reel, Cut Tape, MouseReel
PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0805 PRF21BA471QB5RA Murata Electronics 1: $0.476 1,271In Stock 4,000Expected 15/12/2026	Mfr. Part No. PRF21BA471QB5RA Mouser Part No 81-PRF21BA471QB5RA	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0805 Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	1,271In Stock 4,000Expected 15/12/2026	Cut Tape $0.476 $0.447 $0.394 $0.375 Reel $0.262 View $0.335 $0.28 $0.261 $0.249 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	PRF	470 Ohms	50 %	PCB Mount	SMD/SMT	- 20 C	+ 140 C	Reel, Cut Tape, MouseReel
PTC (Positive Temperature Coefficient) Thermistors PRF21BD471QB5RA Murata Electronics 1: $0.612 318In Stock	Mfr. Part No. PRF21BD471QB5RA Mouser Part No 81-PRF21BD471QB5RA	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	318In Stock	Cut Tape $0.612 $0.506 $0.441 $0.389 Reel $0.254 View $0.345 $0.277 $0.245 $0.238 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	PRF	470 Ohms	50 %	PCB Mount	SMD/SMT	- 20 C	+ 110 C	Reel, Cut Tape, MouseReel
PTC (Positive Temperature Coefficient) Thermistors PTC 0402, 10kOhms, 50%, 32VDC PRF15BB103RB6RC Murata Electronics 1: $0.204 19,875In Stock	Mfr. Part No. PRF15BB103RB6RC Mouser Part No 81-PRF15BB103RB6RC	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors PTC 0402, 10kOhms, 50%, 32VDC Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	19,875In Stock	Cut Tape $0.204 $0.184 $0.173 $0.156 Reel $0.103 View $0.139 $0.133 $0.121 $0.088 MouseReel Available	Min.: 1 Mult.: 1 : 10,000	PRF	10 kOhms	50 %	PCB Mount	SMD/SMT	- 20 C	+ 140 C	Reel, Cut Tape, MouseReel
PTC (Positive Temperature Coefficient) Thermistors 1 OHM 50% SMD 0402 PRF15BD102RB6RC Murata Electronics 1: $0.204 9,620In Stock	Mfr. Part No. PRF15BD102RB6RC Mouser Part No 81-PRF15BD102RB6RC	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 1 OHM 50% SMD 0402 Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	9,620In Stock	Cut Tape $0.204 $0.184 $0.16 $0.147 Reel $0.097 View $0.125 $0.12 $0.107 $0.094 MouseReel Available	Min.: 1 Mult.: 1 : 10,000	PRF	1 kOhms	50 %	PCB Mount	SMD/SMT	- 40 C	+ 120 C	Reel, Cut Tape, MouseReel
PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603 PRF18AR471QB5RB Murata Electronics 1: $0.299 132In Stock 16,000On Order	Mfr. Part No. PRF18AR471QB5RB Mouser Part No 81-PRF18AR471QB5RB	Murata Electronics	PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603 Learn More about Murata Electronics murata prf ptc thermistors	Datasheet	132In Stock 16,000On Order On Order Ship Dates Mfr. No: PRF18AR471QB5RB Stock: 132 Can Dispatch Immediately On Order: 8,000 Expected 22/10/2026 8,000 Expected 29/10/2026 Factory Lead Time: 13 Weeks	Cut Tape $0.299 $0.261 $0.234 $0.194 Reel $0.14 View $0.163 $0.156 $0.136 MouseReel Available	Min.: 1 Mult.: 1 Max.: 12,000 : 4,000	PRF	470 Ohms	50 %	PCB Mount	SMD/SMT	- 20 C	+ 160 C	Reel, Cut Tape, MouseReel

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