Thermistors - PTC – Mouser South Africa

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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

PRF18BD471QB5RB
Murata Electronics
1: $0.19
9,713In 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

9,713In Stock

Cut Tape

$0.19

$0.174

$0.154

$0.145

Reel

$0.11

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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: $0.39
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

PRF

470 Ohms

50 %

PCB Mount

SMD/SMT

- 20 C

+ 120 C

Reel, Cut Tape, MouseReel

PTC (Positive Temperature Coefficient) Thermistors

PRF18BF471RB5RB
Murata Electronics
1: $0.40
1,544In Stock

Mfr. Part No.
PRF18BF471RB5RB

Mouser Part No
81-PRF18BF471RB5RB

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors

Learn More

Datasheet

1,544In Stock

Cut Tape

$0.40

$0.373

$0.331

$0.315

Reel

$0.236

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

PRF21BB471QB5RA
Murata Electronics
1: $0.29
1,880In Stock

Mfr. Part No.
PRF21BB471QB5RA

Mouser Part No
81-PRF21BB471QB5RA

Murata Electronics

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

Learn More

Datasheet

1,880In Stock

Cut Tape

$0.29

$0.261

$0.247

$0.24

Reel

$0.165

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

PRF

470 Ohms

50 %

PCB Mount

SMD/SMT

- 20 C

+ 130 C

Reel, Cut Tape, MouseReel

PTC (Positive Temperature Coefficient) Thermistors

PRF21BD471QB5RA
Murata Electronics
1: $0.44
1,210In Stock

Mfr. Part No.
PRF21BD471QB5RA

Mouser Part No
81-PRF21BD471QB5RA

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors

Learn More

Datasheet

1,210In Stock

Cut Tape

$0.44

$0.404

$0.354

$0.314

Reel

$0.204

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

PRF

470 Ohms

50 %

PCB Mount

SMD/SMT

- 20 C

+ 110 C

Reel, Cut Tape, MouseReel

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

PRG18BB101MS1RB
Murata Electronics
1: $0.42
2,883In Stock

Mfr. Part No.
PRG18BB101MS1RB

Mouser Part No
81-PRG18BB101MS1RB

Murata Electronics

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

Learn More

Datasheet

2,883In Stock

Cut Tape

$0.42

$0.391

$0.365

$0.347

View

Reel

$0.254

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

PRG18-MS1RB

100 Ohms

20 %

PCB Mount

SMD/SMT

- 40 C

+ 75 C

AEC-Q100

Reel, Cut Tape, MouseReel

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

PRG18BB471MB1RB
Murata Electronics
1: $0.211
92In Stock
16,000On Order

Mfr. Part No.
PRG18BB471MB1RB

Mouser Part No
81-PRG18BB471MB1RB

Murata Electronics

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

Learn More

Datasheet

92In Stock

16,000On Order

Cut Tape

$0.211

$0.198

$0.174

$0.165

Reel

$0.113

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

PRG18-MB1RB

470 Ohms

20 %

PCB Mount

SMD/SMT

- 20 C

+ 75 C

Reel, Cut Tape, MouseReel

PTC (Positive Temperature Coefficient) Thermistors 42 OHM 20% SMD 0805

PRG21AR420MS1RA
Murata Electronics
1: $0.411
1,584In Stock

Mfr. Part No.
PRG21AR420MS1RA

Mouser Part No
81-PRG21AR420MS1RA

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors 42 OHM 20% SMD 0805

Learn More

Datasheet

1,584In Stock

Cut Tape

$0.411

$0.384

$0.358

$0.34

View

Reel

$0.247

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

PRG21-MS1RA

42 Ohms

20 %

PCB Mount

SMD/SMT

- 40 C

+ 105 C

AEC-Q100

Reel, Cut Tape, MouseReel

PTC (Positive Temperature Coefficient) Thermistors

PRG21BC3R3MM1RA
Murata Electronics
1: $0.511
2,808In Stock

Mfr. Part No.
PRG21BC3R3MM1RA

Mouser Part No
81-PRG21BC3R3MM1RA

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors

Learn More

Datasheet

2,808In Stock

Cut Tape

$0.511

$0.478

$0.447

$0.426

View

Reel

$0.324

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

PRG21-MM1RA

3.3 Ohms

20 %

PCB Mount

SMD/SMT

- 20 C

+ 85 C

Reel, Cut Tape, MouseReel

PTC (Positive Temperature Coefficient) Thermistors 6.8 OHM 20% SMD 0603

PRG18BC6R8MM1RB
Murata Electronics
1: $0.261
3,934In Stock
8,000Expected 2026/05/04
NRND

Mfr. Part No.
PRG18BC6R8MM1RB

Mouser Part No
81-PRG18BC6R8MM1RB

NRND

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors 6.8 OHM 20% SMD 0603

Learn More

Datasheet

3,934In Stock

8,000Expected 2026/05/04

Cut Tape

$0.261

$0.252

$0.226

$0.217

Reel

$0.17

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

PRG18-MM1RB

6.8 Ohms

20 %

PCB Mount

SMD/SMT

- 20 C

+ 85 C

Reel, Cut Tape, MouseReel

PTC (Positive Temperature Coefficient) Thermistors

PRF15BC102RB6RC
Murata Electronics
1: $0.18
7,781In Stock

Mfr. Part No.
PRF15BC102RB6RC

Mouser Part No
81-PRF15BC102RB6RC

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors

Learn More

Datasheet

7,781In Stock

Cut Tape

$0.18

$0.16

$0.141

$0.127

Reel

$0.079

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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: $0.19
5,170In Stock

Mfr. Part No.
PRF18AR471QB5RB

Mouser Part No
81-PRF18AR471QB5RB

Murata Electronics

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

Learn More

Datasheet

5,170In Stock

Cut Tape

$0.19

$0.177

$0.156

$0.143

Reel

$0.112

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

PRF18BE471QB5RB
Murata Electronics
1: $0.16
16,056In Stock
8,000Expected 2026/04/14

Mfr. Part No.
PRF18BE471QB5RB

Mouser Part No
81-PRF18BE471QB5RB

Murata Electronics

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

Learn More

Datasheet

16,056In Stock

8,000Expected 2026/04/14

Cut Tape

$0.16

$0.148

$0.13

$0.123

Reel

$0.085

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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: $0.16
7,560In Stock
8,000Expected 2026/04/14

Mfr. Part No.
PRF18BF471QB5RB

Mouser Part No
81-PRF18BF471QB5RB

Murata Electronics

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

Learn More

Datasheet

7,560In Stock

8,000Expected 2026/04/14

Cut Tape

$0.16

$0.148

$0.13

$0.123

View

Reel

$0.095

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

PRF18BG471QB5RB
Murata Electronics
1: $0.16
2,300In Stock
12,000Expected 2026/04/16

Mfr. Part No.
PRF18BG471QB5RB

Mouser Part No
81-PRF18BG471QB5RB

Murata Electronics

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

Learn More

Datasheet

2,300In Stock

12,000Expected 2026/04/16

Cut Tape

$0.16

$0.148

$0.13

$0.123

Reel

$0.093

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

PRF

470 Ohms

50 %

PCB Mount

SMD/SMT

- 20 C

+ 90 C

Reel, Cut Tape, MouseReel

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

PRF18BG471RB5RB
Murata Electronics
1: $0.39
4,077In 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

4,077In Stock

$0.39

$0.366

$0.324

$0.308

View

Min.: 1
Mult.: 1

PRF

470 Ohms

50 %

PCB Mount

SMD/SMT

- 20 C

+ 90 C

Bulk

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

PRF21BA471QB5RA
Murata Electronics
1: $0.35
2,421In Stock
4,000Expected 2026/03/06

Mfr. Part No.
PRF21BA471QB5RA

Mouser Part No
81-PRF21BA471QB5RA

Murata Electronics

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

Learn More

Datasheet

2,421In Stock

4,000Expected 2026/03/06

Cut Tape

$0.35

$0.322

$0.285

$0.271

Reel

$0.205

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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: $0.44
3,850In Stock
4,000Expected 2026/06/01

Mfr. Part No.
PRF21BC471QB5RA

Mouser Part No
81-PRF21BC471QB5RA

Murata Electronics

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

Learn More

Datasheet

3,850In Stock

4,000Expected 2026/06/01

Cut Tape

$0.44

$0.415

$0.368

$0.348

Reel

$0.19

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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: $0.37
3,392In Stock
4,000Expected 2026/04/14

Mfr. Part No.
PRF21BE471QB5RA

Mouser Part No
81-PRF21BE471QB5RA

Murata Electronics

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

Learn More

Datasheet

3,392In Stock

4,000Expected 2026/04/14

Cut Tape

$0.37

$0.349

$0.309

$0.29

Reel

$0.22

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

PRF

470 Ohms

50 %

PCB Mount

SMD/SMT

- 20 C

+ 100 C

Reel, Cut Tape, MouseReel

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

PRG18BB101MB1RB
Murata Electronics
1: $0.22
12,320In Stock
8,000Expected 2026/05/01

Mfr. Part No.
PRG18BB101MB1RB

Mouser Part No
81-PRG18BB101MB1RB

Murata Electronics

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

Learn More

Datasheet

12,320In Stock

8,000Expected 2026/05/01

Cut Tape

$0.22

$0.204

$0.179

$0.17

Reel

$0.128

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

PRG18-MB1RB

100 Ohms

20 %

PCB Mount

SMD/SMT

- 20 C

+ 75 C

Reel, Cut Tape, MouseReel

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

PRG18BB330MB1RB
Murata Electronics
1: $0.211
131In Stock
55,700On Order

Mfr. Part No.
PRG18BB330MB1RB

Mouser Part No
81-PRG18BB330MB1RB

Murata Electronics

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

Learn More

Datasheet

131In Stock

55,700On Order

Cut Tape

$0.211

$0.198

$0.174

$0.165

Reel

$0.117

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

PRG18-MB1RB

33 Ohms

20 %

PCB Mount

SMD/SMT

- 20 C

+ 75 C

Reel, Cut Tape, MouseReel

PTC (Positive Temperature Coefficient) Thermistors 42 OHM 20% SMD 0805

PRG21AR420MB1RA
Murata Electronics
1: $0.461
3,930In Stock

Mfr. Part No.
PRG21AR420MB1RA

Mouser Part No
81-PRG21AR420MB1RA

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors 42 OHM 20% SMD 0805

Learn More

Datasheet

3,930In Stock

Cut Tape

$0.461

$0.428

$0.399

$0.379

View

Reel

$0.29

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

PRG21-MB1RA

42 Ohms

20 %

PCB Mount

SMD/SMT

- 10 C

+ 60 C

Reel, Cut Tape, MouseReel

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

PRG21BC0R2MM1RA
Murata Electronics
1: $0.611
2,491In Stock
4,000Expected 2026/04/13

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

2,491In Stock

4,000Expected 2026/04/13

Cut Tape

$0.611

$0.573

$0.536

$0.511

View

Reel

$0.384

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

PRG21-MM1RA

200 mOhms

20 %

PCB Mount

SMD/SMT

- 20 C

+ 85 C

Reel, Cut Tape, MouseReel

PTC (Positive Temperature Coefficient) Thermistors 0.6 OHM 20% SMD 0805

PRG21BC0R6MM1RA
Murata Electronics
1: $0.49
475In Stock
4,000Expected 2026/03/12

Mfr. Part No.
PRG21BC0R6MM1RA

Mouser Part No
81-PRG21BC0R6MM1RA

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors 0.6 OHM 20% SMD 0805

Learn More

Datasheet

475In Stock

4,000Expected 2026/03/12

Cut Tape

$0.49

$0.458

$0.431

$0.416

View

Reel

$0.336

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

PRG21-MM1RA

600 mOhms

20 %

PCB Mount

SMD/SMT

- 20 C

+ 85 C

Reel, Cut Tape, MouseReel

PTC (Positive Temperature Coefficient) Thermistors 2.2 OHM 20% SMD 0805

PRG21BC2R2MM1RA
Murata Electronics
1: $0.48
3,723In Stock

Mfr. Part No.
PRG21BC2R2MM1RA

Mouser Part No
81-PRG21BC2R2MM1RA

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors 2.2 OHM 20% SMD 0805

Learn More

Datasheet

3,723In Stock

Cut Tape

$0.48

$0.452

$0.422

$0.402

View

Reel

$0.307

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

PRG21-MM1RA

2.2 Ohms

20 %

PCB Mount

SMD/SMT

- 20 C

+ 85 C

Reel, Cut Tape, MouseReel

POSISTOR® PTC Thermistors

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