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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 #

Aluminium Organic Polymer Capacitors

ECASD40E337M006KA0
Murata Electronics
1: $1.56
6,662In Stock

Mfr. Part No.
ECASD40E337M006KA0

Mouser Part No
81-ECASD40E337M006KA

Murata Electronics

Aluminium Organic Polymer Capacitors

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Datasheet

6,662In Stock

Cut Tape

$1.56

$0.868

$0.789

$0.651

Reel

$0.543

View

Min.: 1
Mult.: 1

Reel: 3,000

Aluminium Organic Polymer Capacitors 15UF 25V ESR=40

ECASD31E156M040KA0
Murata Electronics
1: $1.54
5,487In Stock

Mfr. Part No.
ECASD31E156M040KA0

Mouser Part No
81-ECASD31E156M040KA

Murata Electronics

Aluminium Organic Polymer Capacitors 15UF 25V ESR=40

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Datasheet

5,487In Stock

Cut Tape

$1.54

$0.793

$0.72

$0.593

Reel

$0.485

View

Min.: 1
Mult.: 1

Reel: 3,000

PTC (Positive Temperature Coefficient) Thermistors 1 OHM 20% SMD 0805

PRG21BC1R0MM1RA
Murata Electronics
1: $0.50
8,231In Stock

Mfr. Part No.
PRG21BC1R0MM1RA

Mouser Part No
81-PRG21BC1R0MM1RA

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors 1 OHM 20% SMD 0805

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Datasheet

8,231In Stock

Cut Tape

$0.50

$0.47

$0.44

$0.418

View

Reel

$0.251

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

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

PRF18BC471QB5RB
Murata Electronics
1: $0.13
16,705In Stock

Mfr. Part No.
PRF18BC471QB5RB

Mouser Part No
81-PRF18BC471QB5RB

Murata Electronics

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

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Datasheet

16,705In Stock

Cut Tape

$0.13

$0.127

$0.108

Reel

$0.107

$0.104

$0.084

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

PTC (Positive Temperature Coefficient) Thermistors

PRG21AR220MS5RA
Murata Electronics
1: $0.99
380In Stock
4,000Expected 2026/02/13

Mfr. Part No.
PRG21AR220MS5RA

Mouser Part No
81-PRG21AR220MS5RA

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors

Learn More

Datasheet

380In Stock

4,000Expected 2026/02/13

Cut Tape

$0.99

$0.752

$0.648

$0.626

View

Reel

$0.347

Min.: 1
Mult.: 1

Reel: 4,000

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

PRF18BC471RB5RB
Murata Electronics
1: $0.39
3,855In 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

3,855In Stock

Cut Tape

$0.39

$0.355

$0.307

$0.29

Reel

$0.24

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

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

PRF18BB471QB5RB
Murata Electronics
1: $0.33
7,031In Stock

Mfr. Part No.
PRF18BB471QB5RB

Mouser Part No
81-PRF18BB471QB5RB

Murata Electronics

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

Learn More

Datasheet

7,031In Stock

Cut Tape

$0.33

$0.311

$0.274

$0.261

Reel

$0.176

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

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

PRF03BB102QB7RL
Murata Electronics
1: $0.13
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

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Datasheet

13,599In Stock

Cut Tape

$0.13

$0.119

Reel

$0.119

Min.: 1
Mult.: 1

Reel: 15,000

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

PRF03BC102QB7RL
Murata Electronics
1: $0.13
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

$0.13

$0.119

Reel

$0.119

Min.: 1
Mult.: 1

Reel: 15,000

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

PRG18BC2R2MM1RB
Murata Electronics
1: $0.32
9In Stock
NRND

Mfr. Part No.
PRG18BC2R2MM1RB

Mouser Part No
81-PRG18BC2R2MM1RB

NRND

Murata Electronics

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

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Datasheet

9In Stock

Cut Tape

$0.32

$0.301

$0.266

$0.254

Reel

$0.188

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

PTC (Positive Temperature Coefficient) Thermistors 3.3 OHM 20% SMD 0603

PRG18BC3R3MM1RB
Murata Electronics
1: $0.33
1,967In Stock
NRND

Mfr. Part No.
PRG18BC3R3MM1RB

Mouser Part No
81-PRG18BC3R3MM1RB

NRND

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors 3.3 OHM 20% SMD 0603

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Datasheet

1,967In Stock

Cut Tape

$0.33

$0.307

$0.271

$0.258

Reel

$0.193

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

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

PRG18BC4R7MM1RB
Murata Electronics
1: $0.32
13,055In 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

13,055In Stock

Cut Tape

$0.32

$0.302

$0.266

$0.254

Reel

$0.191

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

PTC (Positive Temperature Coefficient) Thermistors

PRF15BB102RB6RC
Murata Electronics
1: $0.13
30,224In Stock
30,000Expected 2026/02/13

Mfr. Part No.
PRF15BB102RB6RC

Mouser Part No
81-PRF15BB102RB6RC

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors

Learn More

Datasheet

30,224In Stock

30,000Expected 2026/02/13

Cut Tape

$0.13

$0.123

$0.107

$0.102

Reel

$0.072

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 10,000

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

PRF18BA471QB5RB
Murata Electronics
1: $0.16
18,678In Stock
12,000Expected 2026/04/23

Mfr. Part No.
PRF18BA471QB5RB

Mouser Part No
81-PRF18BA471QB5RB

Murata Electronics

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

Learn More

Datasheet

18,678In Stock

12,000Expected 2026/04/23

Cut Tape

$0.16

$0.147

$0.136

$0.129

Reel

$0.117

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

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

PRG18BB330MS1RB
Murata Electronics
1: $0.40
7,500In Stock
4,000Expected 2026/04/14

Mfr. Part No.
PRG18BB330MS1RB

Mouser Part No
81-PRG18BB330MS1RB

Murata Electronics

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

Learn More

Datasheet

7,500In Stock

4,000Expected 2026/04/14

Cut Tape

$0.40

$0.372

$0.345

$0.329

View

Reel

$0.267

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

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

PRG18BB470MB1RB
Murata Electronics
1: $0.32
11,467In Stock
32,000On Order

Mfr. Part No.
PRG18BB470MB1RB

Mouser Part No
81-PRG18BB470MB1RB

Murata Electronics

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

Learn More

Datasheet

11,467In Stock

32,000On Order

Cut Tape

$0.32

$0.297

$0.262

$0.248

Reel

$0.192

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

PTC (Positive Temperature Coefficient) Thermistors 22 OHM 20% SMD 0805

PRG21AR220MS1RK
Murata Electronics
1: $0.42
10,664In Stock

Mfr. Part No.
PRG21AR220MS1RK

Mouser Part No
81-PRG21AR220MS1RK

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors 22 OHM 20% SMD 0805

Learn More

Datasheet

10,664In Stock

Cut Tape

$0.42

$0.391

$0.365

$0.347

View

Reel

$0.245

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

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

PRG21BB150MB1RK
Murata Electronics
1: $0.43
11,531In 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

11,531In Stock

Cut Tape

$0.43

$0.404

$0.378

$0.363

View

Reel

$0.263

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

PTC (Positive Temperature Coefficient) Thermistors 22 OHM 20% SMD 0805

PRG21BB220MB1RK
Murata Electronics
1: $0.47
9,233In Stock

Mfr. Part No.
PRG21BB220MB1RK

Mouser Part No
81-PRG21BB220MB1RK

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors 22 OHM 20% SMD 0805

Learn More

Datasheet

9,233In Stock

Cut Tape

$0.47

$0.44

$0.411

$0.39

View

Reel

$0.301

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

PTC (Positive Temperature Coefficient) Thermistors 6.8 OHM 20% SMD 0805

PRG21BC6R8MM1RA
Murata Electronics
1: $0.48
13,857In Stock
12,000Expected 2026/02/26

Mfr. Part No.
PRG21BC6R8MM1RA

Mouser Part No
81-PRG21BC6R8MM1RA

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors 6.8 OHM 20% SMD 0805

Learn More

Datasheet

13,857In Stock

12,000Expected 2026/02/26

Cut Tape

$0.48

$0.451

$0.42

$0.40

View

Reel

$0.297

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

PTC (Positive Temperature Coefficient) Thermistors

PRF18AS471QB5RB
Murata Electronics
1: $0.19
3,520In Stock

Mfr. Part No.
PRF18AS471QB5RB

Mouser Part No
81-PRF18AS471QB5RB

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors

Learn More

Datasheet

3,520In Stock

Cut Tape

$0.19

$0.177

$0.156

$0.147

Reel

$0.086

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

PTC (Positive Temperature Coefficient) Thermistors

PRF18BB471RB5RB
Murata Electronics
1: $0.211
3,144In Stock

Mfr. Part No.
PRF18BB471RB5RB

Mouser Part No
81-PRF18BB471RB5RB

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors

Learn More

Datasheet

3,144In Stock

Cut Tape

$0.211

$0.192

$0.164

$0.154

Reel

$0.126

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

PTC (Positive Temperature Coefficient) Thermistors

PRF18BD471RB5RB
Murata Electronics
1: $0.39
2,171In Stock

Mfr. Part No.
PRF18BD471RB5RB

Mouser Part No
81-PRF18BD471RB5RB

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors

Learn More

Datasheet

2,171In Stock

Cut Tape

$0.39

$0.366

$0.324

$0.308

Reel

$0.234

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

PTC (Positive Temperature Coefficient) Thermistors

PRF18BF471RB5RB
Murata Electronics
1: $0.40
1,694In Stock

Mfr. Part No.
PRF18BF471RB5RB

Mouser Part No
81-PRF18BF471RB5RB

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors

Learn More

Datasheet

1,694In Stock

Cut Tape

$0.40

$0.373

$0.331

$0.315

Reel

$0.237

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

PTC (Positive Temperature Coefficient) Thermistors

PRF21BD471QB5RA
Murata Electronics
1: $0.44
1,710In Stock

Mfr. Part No.
PRF21BD471QB5RA

Mouser Part No
81-PRF21BD471QB5RA

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors

Learn More

Datasheet

1,710In Stock

Cut Tape

$0.44

$0.404

$0.354

$0.314

Reel

$0.204

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

POSISTOR® PTC Thermistors

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POSISTOR® PTC Thermistors

All Results (64)

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