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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Part #

PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603

PRF18BE471QB5RB
Murata Electronics
1: $0.231
23,251In Stock

Mfr. Part No.
PRF18BE471QB5RB

Mouser Part No
81-PRF18BE471QB5RB

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603

Learn More

Datasheet

23,251In Stock

Cut Tape

$0.231

$0.209

$0.184

$0.174

Reel

$0.114

View

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 0805

PRF21BA471QB5RA
Murata Electronics
1: $0.476
6,271In Stock

Mfr. Part No.
PRF21BA471QB5RA

Mouser Part No
81-PRF21BA471QB5RA

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0805

Learn More

Datasheet

6,271In Stock

Cut Tape

$0.476

$0.447

$0.394

$0.375

Reel

$0.267

View

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 470 OHM 50% SMD 0805

PRF21BC471QB5RA
Murata Electronics
1: $0.626
7,670In Stock

Mfr. Part No.
PRF21BC471QB5RA

Mouser Part No
81-PRF21BC471QB5RA

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0805

Learn More

Datasheet

7,670In Stock

Cut Tape

$0.626

$0.536

$0.462

$0.379

Reel

$0.239

View

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
6,937In Stock

Mfr. Part No.
PRF21BE471QB5RA

Mouser Part No
81-PRF21BE471QB5RA

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0805

Learn More

Datasheet

6,937In Stock

Cut Tape

$0.517

$0.484

$0.428

$0.379

Reel

$0.269

View

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 470 OHM 50% SMD 0603

PRF18BC471RB5RB
Murata Electronics
1: $0.558
3,705In Stock

Mfr. Part No.
PRF18BC471RB5RB

Mouser Part No
81-PRF18BC471RB5RB

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603

Learn More

Datasheet

3,705In Stock

Cut Tape

$0.558

$0.518

$0.458

$0.437

Reel

$0.326

View

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

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

Datasheet

3,860In Stock

Cut Tape

$0.558

$0.518

$0.458

$0.437

Reel

$0.314

View

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

PRF18BG471RB5RB
Murata Electronics
1: $0.558
4,047In Stock

Mfr. Part No.
PRF18BG471RB5RB

Mouser Part No
81-PRF18BG471RB5RB

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603

Learn More

Datasheet

4,047In Stock

$0.558

$0.518

$0.458

$0.437

View

Min.: 1
Mult.: 1

PRF

470 Ohms

50 %

PCB Mount

SMD/SMT

- 20 C

+ 90 C

Bulk

PTC (Positive Temperature Coefficient) Thermistors 0603 1kohm 125+/-5degC Curie Point 110degC

PRF03BA102QB7RL
Murata Electronics
1: $0.163
10,500In 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

Datasheet

10,500In Stock

Cut Tape

$0.163

$0.148

$0.131

$0.109

View

Reel

$0.075

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: $0.204
9,100In 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

Datasheet

9,100In Stock

Cut Tape

$0.204

$0.18

$0.158

$0.126

View

Reel

$0.087

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: $0.163
10,500In 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

Datasheet

10,500In Stock

Cut Tape

$0.163

$0.148

$0.131

$0.109

View

Reel

$0.075

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: $0.204
10,472In 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

Datasheet

10,472In Stock

Cut Tape

$0.204

$0.18

$0.158

$0.126

View

Reel

$0.087

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
13,599In 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

Datasheet

13,599In Stock

Cut Tape

$0.15

$0.135

$0.117

$0.112

View

Reel

$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

Datasheet

14,465In Stock

Cut Tape

$0.15

$0.135

$0.117

$0.112

View

Reel

$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 470 OHM 50% SMD 0603

PRF18BA471QB5RB
Murata Electronics
1: $0.272
34In Stock
64,000Expected 3/8/2026

Mfr. Part No.
PRF18BA471QB5RB

Mouser Part No
81-PRF18BA471QB5RB

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603

Learn More

Datasheet

34In Stock

64,000Expected 3/8/2026

Cut Tape

$0.272

$0.246

$0.216

$0.215

Reel

$0.125

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

PRF

470 Ohms

50 %

PCB Mount

SMD/SMT

- 20 C

+ 150 C

Reel, Cut Tape, MouseReel

PTC (Positive Temperature Coefficient) Thermistors

PRF15BA102RB6RC
Murata Electronics
1: $0.245
9,889In Stock

Mfr. Part No.
PRF15BA102RB6RC

Mouser Part No
81-PRF15BA102RB6RC

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors

Learn More

Datasheet

9,889In Stock

Cut Tape

$0.245

$0.203

$0.178

$0.143

Reel

$0.088

View

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

PRF15BC102RB6RC
Murata Electronics
1: $0.245
2,271In Stock
10,000Expected 29/7/2026

Mfr. Part No.
PRF15BC102RB6RC

Mouser Part No
81-PRF15BC102RB6RC

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors

Learn More

Datasheet

2,271In Stock

10,000Expected 29/7/2026

Cut Tape

$0.245

$0.218

$0.192

$0.165

Reel

$0.097

View

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 470 OHM 50% SMD 0603

PRF18AR471QB5RB
Murata Electronics
1: $0.286
4,132In Stock
8,000Expected 6/11/2026

Mfr. Part No.
PRF18AR471QB5RB

Mouser Part No
81-PRF18AR471QB5RB

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603

Learn More

Datasheet

4,132In Stock

8,000Expected 6/11/2026

Cut Tape

$0.286

$0.248

$0.219

$0.185

Reel

$0.139

View

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

PRF18AS471QB5RB
Murata Electronics
1: $0.272
2,690In Stock

Mfr. Part No.
PRF18AS471QB5RB

Mouser Part No
81-PRF18AS471QB5RB

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors

Learn More

Datasheet

2,690In Stock

Cut Tape

$0.272

$0.246

$0.216

$0.204

Reel

$0.147

View

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

PRF18BB471QB5RB
Murata Electronics
1: $0.462
296In Stock
4,000Expected 8/9/2026

Mfr. Part No.
PRF18BB471QB5RB

Mouser Part No
81-PRF18BB471QB5RB

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603

Learn More

Datasheet

296In Stock

4,000Expected 8/9/2026

Cut Tape

$0.462

$0.43

$0.379

$0.36

Reel

$0.246

View

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

PRF18BB471RB5RB
Murata Electronics
1: $0.299
3,034In Stock

Mfr. Part No.
PRF18BB471RB5RB

Mouser Part No
81-PRF18BB471RB5RB

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors

Learn More

Datasheet

3,034In Stock

Cut Tape

$0.299

$0.28

$0.246

$0.234

Reel

$0.16

View

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 470 OHM 50% SMD 0603

PRF18BC471QB5RB
Murata Electronics
1: $0.272
5,550In Stock
4,000Expected 22/9/2026

Mfr. Part No.
PRF18BC471QB5RB

Mouser Part No
81-PRF18BC471QB5RB

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603

Learn More

Datasheet

5,550In Stock

4,000Expected 22/9/2026

Cut Tape

$0.272

$0.246

$0.216

$0.204

Reel

$0.143

View

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

PRF18BD471QB5RB
Murata Electronics
1: $0.272
12,273In Stock

Mfr. Part No.
PRF18BD471QB5RB

Mouser Part No
81-PRF18BD471QB5RB

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603

Learn More

Datasheet

12,273In Stock

Cut Tape

$0.272

$0.246

$0.216

$0.204

Reel

$0.148

View

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

PRF18BD471RB5RB
Murata Electronics
1: $0.558
451In Stock
4,000Expected 27/7/2026

Mfr. Part No.
PRF18BD471RB5RB

Mouser Part No
81-PRF18BD471RB5RB

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors

Learn More

Datasheet

451In Stock

4,000Expected 27/7/2026

Cut Tape

$0.558

$0.518

$0.458

$0.437

Reel

$0.32

View

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 0603

PRF18BF471QB5RB
Murata Electronics
1: $0.272
5,475In Stock

Mfr. Part No.
PRF18BF471QB5RB

Mouser Part No
81-PRF18BF471QB5RB

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603

Learn More

Datasheet

5,475In Stock

Cut Tape

$0.272

$0.253

$0.223

$0.18

Reel

$0.131

View

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

PRF18BF471RB5RB
Murata Electronics
1: $0.558
132In Stock
4,000Expected 27/7/2026

Mfr. Part No.
PRF18BF471RB5RB

Mouser Part No
81-PRF18BF471RB5RB

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors

Learn More

Datasheet

132In Stock

4,000Expected 27/7/2026

Cut Tape

$0.558

$0.518

$0.458

$0.437

Reel

$0.314

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

PRF

470 Ohms

50 %

PCB Mount

SMD/SMT

- 20 C

+ 100 C

Reel, Cut Tape, MouseReel

PRF PTC Thermistors

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