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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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Part #

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

PRF18BE471QB5RB
Murata Electronics
1: € 0,146
21 250In Stock

Mfr. Part No.
PRF18BE471QB5RB

Mouser Part No
81-PRF18BE471QB5RB

Murata Electronics

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

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Datasheet

21 250In Stock

Cut Tape

€ 0,146

€ 0,132

€ 0,116

€ 0,11

Reel

€ 0,072

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Min.: 1
Mult.: 1

: 4 000

PTC (Positive Temperature Coefficient) Thermistors 4.7 OHM 20% SMD 0805

PRG18BC4R7MM1RB
Murata Electronics
1: € 0,335
11 439In Stock
NRND

Mfr. Part No.
PRG18BC4R7MM1RB

Mouser Part No
81-PRG18BC4R7MM1RB

NRND

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors 4.7 OHM 20% SMD 0805

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Datasheet

11 439In Stock

Cut Tape

€ 0,335

€ 0,308

€ 0,256

€ 0,212

Reel

€ 0,149

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Min.: 1
Mult.: 1

: 4 000

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

PRF21BC471QB5RA
Murata Electronics
1: € 0,396
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

€ 0,396

€ 0,339

€ 0,292

€ 0,24

Reel

€ 0,162

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Min.: 1
Mult.: 1

: 4 000

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

PRF21BE471QB5RA
Murata Electronics
1: € 0,327
6 837In 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 837In Stock

Cut Tape

€ 0,327

€ 0,306

€ 0,271

€ 0,24

Reel

€ 0,163

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Min.: 1
Mult.: 1

: 4 000

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

PRF18BG471RB5RB
Murata Electronics
1: € 0,353
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

Datasheet

4 032In Stock

€ 0,353

€ 0,328

€ 0,29

€ 0,276

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Min.: 1
Mult.: 1

PTC (Positive Temperature Coefficient) Thermistors

PRF18BE471RB5RB
Murata Electronics
1: € 0,353
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

€ 0,353

€ 0,328

€ 0,29

€ 0,276

Reel

€ 0,20

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Min.: 1
Mult.: 1

: 4 000

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

PRF21BA471QB5RA
Murata Electronics
1: € 0,301
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

€ 0,301

€ 0,283

€ 0,249

€ 0,237

Reel

€ 0,169

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Min.: 1
Mult.: 1

: 4 000

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

PRF03BA102QB7RL
Murata Electronics
1: € 0,103
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

Datasheet

12 000In Stock

Cut Tape

€ 0,103

€ 0,094

€ 0,083

€ 0,069

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Reel

€ 0,047

Min.: 1
Mult.: 1

: 15 000

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

PRF03BA102QS7RL
Murata Electronics
1: € 0,129
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

€ 0,129

€ 0,114

€ 0,10

€ 0,08

View

Reel

€ 0,055

Min.: 1
Mult.: 1

: 15 000

PTC (Positive Temperature Coefficient) Thermistors 0603 1kohm 95+/-5degC Curie Point 80degC

PRF03BD102QB7RL
Murata Electronics
1: € 0,103
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

Datasheet

12 000In Stock

Cut Tape

€ 0,103

€ 0,094

€ 0,083

€ 0,069

View

Reel

€ 0,047

Min.: 1
Mult.: 1

: 15 000

PTC (Positive Temperature Coefficient) Thermistors 0603 1kohm 95+/-5degC Curie Point 80degC

PRF03BD102QS7RL
Murata Electronics
1: € 0,129
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

€ 0,129

€ 0,114

€ 0,10

€ 0,08

View

Reel

€ 0,055

Min.: 1
Mult.: 1

: 15 000

PTC (Positive Temperature Coefficient) Thermistors 0.6x0.3mm 1kohm 115+/-5degC

PRF03BB102QB7RL
Murata Electronics
1: € 0,095
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

€ 0,095

€ 0,085

€ 0,074

€ 0,071

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Reel

€ 0,046

Min.: 1
Mult.: 1

: 15 000

PTC (Positive Temperature Coefficient) Thermistors 0.6x0.3mm 1kohm 105+/-5degC

PRF03BC102QB7RL
Murata Electronics
1: € 0,095
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

€ 0,095

€ 0,085

€ 0,074

€ 0,071

View

Reel

€ 0,046

Min.: 1
Mult.: 1

: 15 000

PTC (Positive Temperature Coefficient) Thermistors 33 OHM 20% SMD 0603

PRG18BB330MB1RB
Murata Electronics
1: € 0,215
164 112In Stock

Mfr. Part No.
PRG18BB330MB1RB

Mouser Part No
81-PRG18BB330MB1RB

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors 33 OHM 20% SMD 0603

Learn More

Datasheet

164 112In Stock

Cut Tape

€ 0,215

€ 0,198

€ 0,164

€ 0,137

Reel

€ 0,097

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MouseReel Available

Min.: 1
Mult.: 1

: 4 000

Aluminium Organic Polymer Capacitors 15UF 25V ESR=40

ECASD31E156M040KA0
Murata Electronics
1: € 1,43
3 439In Stock
3 000Expected 21/12/2026

Mfr. Part No.
ECASD31E156M040KA0

Mouser Part No
81-ECASD31E156M040KA

Murata Electronics

Aluminium Organic Polymer Capacitors 15UF 25V ESR=40

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Datasheet

3 439In Stock

3 000Expected 21/12/2026

Cut Tape

€ 1,43

€ 0,759

€ 0,689

€ 0,581

€ 0,543

Reel

€ 0,514

Min.: 1
Mult.: 1

: 3 000

PTC (Positive Temperature Coefficient) Thermistors

PRF15BB102RB6RC
Murata Electronics
1: € 0,12
64 080In Stock

Mfr. Part No.
PRF15BB102RB6RC

Mouser Part No
81-PRF15BB102RB6RC

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors

Learn More

Datasheet

64 080In Stock

Cut Tape

€ 0,12

€ 0,11

€ 0,096

€ 0,09

Reel

€ 0,062

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MouseReel Available

Min.: 1
Mult.: 1

: 10 000

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

PRF18BA471QB5RB
Murata Electronics
1: € 0,172
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

Datasheet

64 034In Stock

Cut Tape

€ 0,172

€ 0,156

€ 0,136

€ 0,119

Reel

€ 0,097

View

MouseReel Available

Min.: 1
Mult.: 1

: 4 000

PTC (Positive Temperature Coefficient) Thermistors 100 OHM 20% SMD 0603

PRG18BB101MB1RB
Murata Electronics
1: € 0,224
29 031In Stock
20 000On Order

Mfr. Part No.
PRG18BB101MB1RB

Mouser Part No
81-PRG18BB101MB1RB

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors 100 OHM 20% SMD 0603

Learn More

Datasheet

29 031In Stock

20 000On Order

Cut Tape

€ 0,224

€ 0,201

€ 0,167

€ 0,139

Reel

€ 0,09

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MouseReel Available

Min.: 1
Mult.: 1

: 4 000

PTC (Positive Temperature Coefficient) Thermistors 33 OHM 20% SMD 0603

PRG18BB330MS1RB
Murata Electronics
1: € 0,37
9 425In Stock

Mfr. Part No.
PRG18BB330MS1RB

Mouser Part No
81-PRG18BB330MS1RB

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors 33 OHM 20% SMD 0603

Learn More

Datasheet

9 425In Stock

Cut Tape

€ 0,37

€ 0,343

€ 0,32

€ 0,304

View

Reel

€ 0,22

MouseReel Available

Min.: 1
Mult.: 1

: 4 000

PTC (Positive Temperature Coefficient) Thermistors 0603 47ohm 20% SMD

PRG18BB470MB1RB
Murata Electronics
1: € 0,335
87 102In Stock

Mfr. Part No.
PRG18BB470MB1RB

Mouser Part No
81-PRG18BB470MB1RB

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors 0603 47ohm 20% SMD

Learn More

Datasheet

87 102In Stock

Cut Tape

€ 0,335

€ 0,292

€ 0,247

€ 0,206

Reel

€ 0,135

View

MouseReel Available

Min.: 1
Mult.: 1

: 4 000

PTC (Positive Temperature Coefficient) Thermistors 470 OHM 20% SMD 0603

PRG18BB471MB1RB
Murata Electronics
1: € 0,215
23 163In Stock
28 000Expected 22/09/2026

Mfr. Part No.
PRG18BB471MB1RB

Mouser Part No
81-PRG18BB471MB1RB

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors 470 OHM 20% SMD 0603

Learn More

Datasheet

23 163In Stock

28 000Expected 22/09/2026

Cut Tape

€ 0,215

€ 0,198

€ 0,164

€ 0,137

Reel

€ 0,089

View

MouseReel Available

Min.: 1
Mult.: 1

: 4 000

PTC (Positive Temperature Coefficient) Thermistors 15 OHM 20% SMD 0805

PRG21BB150MB1RK
Murata Electronics
1: € 0,49
10 424In Stock

Mfr. Part No.
PRG21BB150MB1RK

Mouser Part No
81-PRG21BB150MB1RK

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors 15 OHM 20% SMD 0805

Learn More

Datasheet

10 424In Stock

Cut Tape

€ 0,49

€ 0,447

€ 0,372

€ 0,359

View

Reel

€ 0,224

MouseReel Available

Min.: 1
Mult.: 1

: 3 000

PTC (Positive Temperature Coefficient) Thermistors 0.2 OHM 20% SMD 0805

PRG21BC0R2MM1RA
Murata Electronics
1: € 0,645
8 126In 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

Datasheet

8 126In Stock

Cut Tape

€ 0,645

€ 0,59

€ 0,49

€ 0,47

View

Reel

€ 0,286

MouseReel Available

Min.: 1
Mult.: 1

: 4 000

PTC (Positive Temperature Coefficient) Thermistors 1 OHM 20% SMD 0603

PRG18BC1R0MM1RB
Murata Electronics
1: € 0,292
1 790In Stock
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

Datasheet

1 790In Stock

Cut Tape

€ 0,292

€ 0,272

€ 0,24

€ 0,229

Reel

€ 0,169

View

MouseReel Available

Min.: 1
Mult.: 1

: 4 000

PTC (Positive Temperature Coefficient) Thermistors 2.2 OHM 20% SMD 0603

PRG18BC2R2MM1RB
Murata Electronics
1: € 0,292
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

Datasheet

Non-Stocked Lead-Time 12 Weeks

Cut Tape

€ 0,292

€ 0,269

€ 0,238

€ 0,226

Reel

€ 0,165

View

MouseReel Available

Min.: 1
Mult.: 1

: 4 000

POSISTOR® PTC Thermistors

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POSISTOR® PTC Thermistors

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