Passive Components – Mouser United Kingdom

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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 15 OHM 20% SMD 0805

PRG21BB150MB1RK
Murata Electronics
1: £0.405
10,074In Stock

Mfr. Part No.
PRG21BB150MB1RK

Mouser Part No
81-PRG21BB150MB1RK

Murata Electronics

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

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Datasheet

10,074In Stock

Cut Tape

£0.405

£0.373

£0.324

£0.313

View

Reel

£0.195

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

PRF21BC471QB5RA
Murata Electronics
1: £0.346
6,170In Stock

Mfr. Part No.
PRF21BC471QB5RA

Mouser Part No
81-PRF21BC471QB5RA

Murata Electronics

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

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Datasheet

6,170In Stock

Cut Tape

£0.346

£0.296

£0.255

£0.21

View

Reel

£0.132

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

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

PRF21BE471QB5RA
Murata Electronics
1: £0.285
6,695In Stock

Mfr. Part No.
PRF21BE471QB5RA

Mouser Part No
81-PRF21BE471QB5RA

Murata Electronics

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

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Datasheet

6,695In Stock

Cut Tape

£0.285

£0.267

£0.237

£0.21

Reel

£0.136

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

PTC (Positive Temperature Coefficient) Thermistors

PRF15BA102RB6RC
Murata Electronics
1: £0.135
9,889In Stock

Mfr. Part No.
PRF15BA102RB6RC

Mouser Part No
81-PRF15BA102RB6RC

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors

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Datasheet

9,889In Stock

Cut Tape

£0.135

£0.112

£0.099

£0.079

View

Reel

£0.049

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

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

PRF18BG471RB5RB
Murata Electronics
1: £0.308
4,032In Stock

Mfr. Part No.
PRF18BG471RB5RB

Mouser Part No
81-PRF18BG471RB5RB

Murata Electronics

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

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Datasheet

4,032In Stock

£0.308

£0.286

£0.253

£0.24

View

Min.: 1
Mult.: 1

PTC (Positive Temperature Coefficient) Thermistors

PRF18BE471RB5RB
Murata Electronics
1: £0.308
3,860In Stock

Mfr. Part No.
PRF18BE471RB5RB

Mouser Part No
81-PRF18BE471RB5RB

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors

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Datasheet

3,860In Stock

Cut Tape

£0.308

£0.286

£0.253

£0.241

Reel

£0.175

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MouseReel Available

Min.: 1
Mult.: 1

: 4,000

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

PRF03BA102QB7RL
Murata Electronics
1: £0.09
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

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Datasheet

12,000In Stock

Cut Tape

£0.09

£0.082

£0.072

£0.06

View

Reel

£0.041

Min.: 1
Mult.: 1

: 15,000

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

PRF03BA102QS7RL
Murata Electronics
1: £0.113
10,400In 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

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Datasheet

10,400In Stock

Cut Tape

£0.113

£0.10

£0.087

£0.07

View

Reel

£0.048

Min.: 1
Mult.: 1

: 15,000

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

PRF03BD102QB7RL
Murata Electronics
1: £0.09
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

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Datasheet

12,000In Stock

Cut Tape

£0.09

£0.082

£0.072

£0.06

View

Reel

£0.041

Min.: 1
Mult.: 1

: 15,000

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

PRF03BD102QS7RL
Murata Electronics
1: £0.113
11,968In 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

11,968In Stock

Cut Tape

£0.113

£0.10

£0.087

£0.07

View

Reel

£0.048

Min.: 1
Mult.: 1

: 15,000

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

PRF03BB102QB7RL
Murata Electronics
1: £0.083
13,539In 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

13,539In Stock

Cut Tape

£0.083

£0.074

£0.065

£0.062

View

Reel

£0.04

Min.: 1
Mult.: 1

: 15,000

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

PRF03BC102QB7RL
Murata Electronics
1: £0.083
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

£0.083

£0.074

£0.065

£0.062

View

Reel

£0.04

Min.: 1
Mult.: 1

: 15,000

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

PRG18BB330MB1RB
Murata Electronics
1: £0.188
151,112In 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

151,112In Stock

Cut Tape

£0.188

£0.173

£0.143

£0.12

Reel

£0.083

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

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

PRG18BC4R7MM1RB
Murata Electronics
1: £0.292
10,939In 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

10,939In Stock

Cut Tape

£0.292

£0.269

£0.223

£0.185

Reel

£0.119

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

PTC (Positive Temperature Coefficient) Thermistors

PRF15BB102RB6RC
Murata Electronics
1: £0.113
56,930In Stock

Mfr. Part No.
PRF15BB102RB6RC

Mouser Part No
81-PRF15BB102RB6RC

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors

Learn More

Datasheet

56,930In Stock

Cut Tape

£0.113

£0.101

£0.088

£0.079

Reel

£0.057

View

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

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

PRF18BA471QB5RB
Murata Electronics
1: £0.15
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

£0.15

£0.136

£0.127

£0.119

View

Reel

£0.085

MouseReel Available

Min.: 1
Mult.: 1
Max.: 4,000

: 4,000

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

PRG18BB101MB1RB
Murata Electronics
1: £0.196
41,929In Stock
32,000Expected 03/12/2026

Mfr. Part No.
PRG18BB101MB1RB

Mouser Part No
81-PRG18BB101MB1RB

Murata Electronics

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

Learn More

Datasheet

41,929In Stock

32,000Expected 03/12/2026

Cut Tape

£0.196

£0.175

£0.146

£0.121

Reel

£0.079

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

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

PRG18BB470MB1RB
Murata Electronics
1: £0.292
78,019In Stock
44,000Expected 26/11/2026

Mfr. Part No.
PRG18BB470MB1RB

Mouser Part No
81-PRG18BB470MB1RB

Murata Electronics

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

Learn More

Datasheet

78,019In Stock

44,000Expected 26/11/2026

Cut Tape

£0.292

£0.255

£0.216

£0.179

Reel

£0.117

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

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

PRG18BC2R2MM1RB
Murata Electronics
1: £0.308
Non-Stocked Lead-Time 10 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 10 Weeks

Cut Tape

£0.308

£0.28

£0.219

£0.196

Reel

£0.127

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Aluminium Organic Polymer Capacitors 15UF 25V ESR=40

ECASD31E156M040KA0
Murata Electronics
1: £1.22
2,826In 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

2,826In Stock

3,000Expected 21/12/2026

Cut Tape

£1.22

£0.663

£0.601

£0.496

Reel

£0.402

View

Min.: 1
Mult.: 1

: 3,000

Aluminium Organic Polymer Capacitors

ECASD40E337M006KA0
Murata Electronics
1: £1.40
2,718In Stock

Mfr. Part No.
ECASD40E337M006KA0

Mouser Part No
81-ECASD40E337M006KA

Murata Electronics

Aluminium Organic Polymer Capacitors

Learn More

Datasheet

2,718In Stock

Cut Tape

£1.40

£0.943

£0.759

£0.672

Reel

£0.467

View

MouseReel Available

Min.: 1
Mult.: 1
Max.: 9,000

: 3,000

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

PRF18BG471QB5RB
Murata Electronics
1: £0.127
28,183In Stock
28,000Expected 19/10/2026

Mfr. Part No.
PRF18BG471QB5RB

Mouser Part No
81-PRF18BG471QB5RB

Murata Electronics

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

Learn More

Datasheet

28,183In Stock

28,000Expected 19/10/2026

Cut Tape

£0.127

£0.115

£0.101

£0.096

Reel

£0.07

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

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

PRG21AR420MB1RA
Murata Electronics
1: £0.421
6,096In 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

6,096In Stock

Cut Tape

£0.421

£0.38

£0.351

£0.32

View

Reel

£0.225

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

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

PRG21BC0R2MM1RA
Murata Electronics
1: £0.563
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

£0.563

£0.515

£0.428

£0.41

View

Reel

£0.25

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

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

PRG21BC6R8MM1RA
Murata Electronics
1: £0.375
18,755In Stock
16,000Expected 23/11/2026

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

18,755In Stock

16,000Expected 23/11/2026

Cut Tape

£0.375

£0.352

£0.328

£0.313

View

Reel

£0.214

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

POSISTOR® PTC Thermistors

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