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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: Rp28.620
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

Rp28.620

Rp15.906

Rp14.457

Rp11.943

Reel

Rp9.962

View

Min.: 1
Mult.: 1

Reel: 3.000

Aluminium Organic Polymer Capacitors 15UF 25V ESR=40

ECASD31E156M040KA0
Murata Electronics
1: Rp28.253
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

Rp28.253

Rp14.548

Rp13.209

Rp10.879

Reel

Rp8.898

View

Min.: 1
Mult.: 1

Reel: 3.000

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

PRG21BC1R0MM1RA
Murata Electronics
1: Rp9.173
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

Rp9.173

Rp8.623

Rp8.054

Rp7.650

View

Reel

Rp4.605

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4.000

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

PRF18BC471QB5RB
Murata Electronics
1: Rp2.385
8.705In Stock

Mfr. Part No.
PRF18BC471QB5RB

Mouser Part No
81-PRF18BC471QB5RB

Murata Electronics

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

Learn More

Datasheet

8.705In Stock

Cut Tape

Rp2.385

Rp2.330

Rp1.981

Reel

Rp1.963

Rp1.908

Rp1.541

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4.000

PTC (Positive Temperature Coefficient) Thermistors

PRG21AR220MS5RA
Murata Electronics
1: Rp18.163
380In Stock
4.000Expected 13/02/2026

Mfr. Part No.
PRG21AR220MS5RA

Mouser Part No
81-PRG21AR220MS5RA

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors

Learn More

Datasheet

380In Stock

4.000Expected 13/02/2026

Cut Tape

Rp18.163

Rp13.796

Rp11.888

Rp11.485

View

Reel

Rp6.348

Min.: 1
Mult.: 1

Reel: 4.000

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

PRF18BC471RB5RB
Murata Electronics
1: Rp7.155
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

Rp7.155

Rp6.513

Rp5.632

Rp5.302

Reel

Rp4.403

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4.000

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

PRF18BB471QB5RB
Murata Electronics
1: Rp6.054
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

Rp6.054

Rp5.687

Rp5.027

Rp4.770

Reel

Rp3.229

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: Rp2.385
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

Rp2.385

Rp2.183

Reel

Rp2.183

Min.: 1
Mult.: 1

Reel: 15.000

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

PRF03BC102QB7RL
Murata Electronics
1: Rp2.385
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

Rp2.385

Rp2.183

Reel

Rp2.183

Min.: 1
Mult.: 1

Reel: 15.000

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

PRG18BC2R2MM1RB
Murata Electronics
1: Rp5.871
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

Learn More

Datasheet

9In Stock

Cut Tape

Rp5.871

Rp5.522

Rp4.880

Rp4.642

Reel

Rp3.449

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: Rp6.054
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

Rp6.054

Rp5.632

Rp4.972

Rp4.733

Reel

Rp3.541

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: Rp5.871
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

Rp5.871

Rp5.540

Rp4.880

Rp4.642

Reel

Rp3.504

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4.000

PTC (Positive Temperature Coefficient) Thermistors

PRF15BB102RB6RC
Murata Electronics
1: Rp2.385
30.224In Stock
30.000Expected 13/02/2026

Mfr. Part No.
PRF15BB102RB6RC

Mouser Part No
81-PRF15BB102RB6RC

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors

Learn More

Datasheet

30.224In Stock

30.000Expected 13/02/2026

Cut Tape

Rp2.385

Rp2.257

Rp1.963

Rp1.871

Reel

Rp1.321

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 10.000

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

PRF18BA471QB5RB
Murata Electronics
1: Rp2.935
18.518In Stock
12.000Expected 23/04/2026

Mfr. Part No.
PRF18BA471QB5RB

Mouser Part No
81-PRF18BA471QB5RB

Murata Electronics

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

Learn More

Datasheet

18.518In Stock

12.000Expected 23/04/2026

Cut Tape

Rp2.935

Rp2.697

Rp2.495

Rp2.367

Reel

Rp2.165

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4.000

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

PRG18BB330MS1RB
Murata Electronics
1: Rp7.338
7.500In Stock
4.000Expected 14/04/2026

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 14/04/2026

Cut Tape

Rp7.338

Rp6.825

Rp6.329

Rp6.036

View

Reel

Rp4.917

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4.000

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

PRG18BB470MB1RB
Murata Electronics
1: Rp5.871
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

Rp5.871

Rp5.449

Rp4.807

Rp4.550

Reel

Rp3.522

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4.000

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

PRG21AR220MS1RK
Murata Electronics
1: Rp7.705
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

Rp7.705

Rp7.173

Rp6.696

Rp6.366

View

Reel

Rp4.495

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3.000

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

PRG21BB150MB1RK
Murata Electronics
1: Rp7.889
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

Rp7.889

Rp7.412

Rp6.935

Rp6.660

View

Reel

Rp4.825

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3.000

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

PRG21BB220MB1RK
Murata Electronics
1: Rp8.623
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

Rp8.623

Rp8.054

Rp7.522

Rp7.137

View

Reel

Rp5.522

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3.000

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

PRG21BC6R8MM1RA
Murata Electronics
1: Rp8.806
13.857In Stock
12.000Expected 26/02/2026

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 26/02/2026

Cut Tape

Rp8.806

Rp8.274

Rp7.705

Rp7.338

View

Reel

Rp5.449

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4.000

PTC (Positive Temperature Coefficient) Thermistors

PRF18AS471QB5RB
Murata Electronics
1: Rp3.486
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

Rp3.486

Rp3.247

Rp2.862

Rp2.697

Reel

Rp1.578

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4.000

PTC (Positive Temperature Coefficient) Thermistors

PRF18BB471RB5RB
Murata Electronics
1: Rp3.853
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

Rp3.853

Rp3.522

Rp3.009

Rp2.825

Reel

Rp2.312

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4.000

PTC (Positive Temperature Coefficient) Thermistors

PRF18BD471RB5RB
Murata Electronics
1: Rp7.155
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

Rp7.155

Rp6.715

Rp5.944

Rp5.651

Reel

Rp4.293

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4.000

PTC (Positive Temperature Coefficient) Thermistors

PRF18BF471RB5RB
Murata Electronics
1: Rp7.338
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

Rp7.338

Rp6.843

Rp6.073

Rp5.779

Reel

Rp4.348

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4.000

PTC (Positive Temperature Coefficient) Thermistors

PRF21BD471QB5RA
Murata Electronics
1: Rp8.072
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

Rp8.072

Rp7.412

Rp6.476

Rp5.761

Reel

Rp3.724

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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