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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 22 OHM 20% SMD 0805

PRG21AR220MS1RK
Murata Electronics
1: 0,361 €
7.279In Stock

Mfr. Part No.
PRG21AR220MS1RK

Mouser Part No
81-PRG21AR220MS1RK

Murata Electronics

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

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Datasheet

7.279In Stock

Cut Tape

0,361 €

0,336 €

0,314 €

0,298 €

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Reel

0,202 €

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

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

PRG18BB330MS1RB
Murata Electronics
1: 0,284 €
10.695In Stock

Mfr. Part No.
PRG18BB330MS1RB

Mouser Part No
81-PRG18BB330MS1RB

Murata Electronics

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

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Datasheet

10.695In Stock

Cut Tape

0,284 €

0,272 €

0,26 €

0,252 €

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Reel

0,203 €

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

PTC (Positive Temperature Coefficient) Thermistors

PRG21AR220MS5RA
Murata Electronics
1: 0,851 €
3.224In Stock

Mfr. Part No.
PRG21AR220MS5RA

Mouser Part No
81-PRG21AR220MS5RA

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors

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Datasheet

3.224In Stock

Cut Tape

0,851 €

0,647 €

0,557 €

0,538 €

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Reel

0,298 €

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

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Datasheet

6.271In Stock

Cut Tape

0,301 €

0,277 €

0,245 €

0,233 €

Reel

0,181 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

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

PRF18BB471QB5RB
Murata Electronics
1: 0,284 €
6.841In Stock

Mfr. Part No.
PRF18BB471QB5RB

Mouser Part No
81-PRF18BB471QB5RB

Murata Electronics

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

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Datasheet

6.841In Stock

Cut Tape

0,284 €

0,267 €

0,236 €

0,224 €

Reel

0,151 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

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

PRF18BG471RB5RB
Murata Electronics
1: 0,344 €
4.067In 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

4.067In Stock

0,344 €

0,321 €

0,284 €

0,27 €

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Min.: 1
Mult.: 1

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

PRF18BC471RB5RB
Murata Electronics
1: 0,335 €
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

0,335 €

0,305 €

0,264 €

0,249 €

Reel

0,206 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

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

PRF03BB102QB7RL
Murata Electronics
1: 0,112 €
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

0,112 €

0,102 €

Reel

0,102 €

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

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Datasheet

14.465In Stock

Cut Tape

0,095 €

0,082 €

0,071 €

0,068 €

View

Reel

0,048 €

Min.: 1
Mult.: 1

: 15.000

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

PRG18BC4R7MM1RB
Murata Electronics
1: 0,275 €
13.030In 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

13.030In Stock

Cut Tape

0,275 €

0,26 €

0,229 €

0,218 €

Reel

0,166 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

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

PRG18BC1R0MM1RB
Murata Electronics
1: 0,284 €
3.073In Stock
NRND

Mfr. Part No.
PRG18BC1R0MM1RB

Mouser Part No
81-PRG18BC1R0MM1RB

NRND

Murata Electronics

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

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Datasheet

3.073In Stock

Cut Tape

0,284 €

0,261 €

0,23 €

0,219 €

Reel

0,172 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

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

PRG18BC2R2MM1RB
Murata Electronics
1: 0,275 €
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

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Datasheet

Non-Stocked Lead-Time 12 Weeks

Cut Tape

0,275 €

0,259 €

0,229 €

0,218 €

Reel

0,162 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

PTC (Positive Temperature Coefficient) Thermistors

PRF15BB102RB6RC
Murata Electronics
1: 0,112 €
48.779In Stock

Mfr. Part No.
PRF15BB102RB6RC

Mouser Part No
81-PRF15BB102RB6RC

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors

Learn More

Datasheet

48.779In Stock

Cut Tape

0,112 €

0,106 €

0,092 €

0,088 €

Reel

0,062 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 10.000

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

PRF18BE471QB5RB
Murata Electronics
1: 0,146 €
23.376In Stock

Mfr. Part No.
PRF18BE471QB5RB

Mouser Part No
81-PRF18BE471QB5RB

Murata Electronics

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

Learn More

Datasheet

23.376In Stock

Cut Tape

0,146 €

0,13 €

0,114 €

0,108 €

Reel

0,073 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

PTC (Positive Temperature Coefficient) Thermistors 220 OHM 20% SMD 0603

PRG18BB221MB1RB
Murata Electronics
1: 0,189 €
39.076In Stock

Mfr. Part No.
PRG18BB221MB1RB

Mouser Part No
81-PRG18BB221MB1RB

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors 220 OHM 20% SMD 0603

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Datasheet

39.076In Stock

Cut Tape

0,189 €

0,172 €

0,138 €

0,135 €

Reel

0,117 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

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

PRG18BB470MB1RB
Murata Electronics
1: 0,258 €
15.040In Stock
16.000Expected 16/06/2026

Mfr. Part No.
PRG18BB470MB1RB

Mouser Part No
81-PRG18BB470MB1RB

Murata Electronics

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

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Datasheet

15.040In Stock

16.000Expected 16/06/2026

Cut Tape

0,258 €

0,238 €

0,213 €

0,203 €

Reel

0,154 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

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

PRG21BB150MB1RK
Murata Electronics
1: 0,404 €
11.106In 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

11.106In Stock

Cut Tape

0,404 €

0,381 €

0,352 €

0,335 €

View

Reel

0,249 €

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

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

PRG21BC1R0MM1RA
Murata Electronics
1: 0,43 €
6.049In Stock

Mfr. Part No.
PRG21BC1R0MM1RA

Mouser Part No
81-PRG21BC1R0MM1RA

Murata Electronics

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

Learn More

Datasheet

6.049In Stock

Cut Tape

0,43 €

0,404 €

0,378 €

0,359 €

View

Reel

0,269 €

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

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

PRG21BC4R7MM1RA
Murata Electronics
1: 0,43 €
6.076In Stock

Mfr. Part No.
PRG21BC4R7MM1RA

Mouser Part No
81-PRG21BC4R7MM1RA

Murata Electronics

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

Learn More

Datasheet

6.076In Stock

Cut Tape

0,43 €

0,404 €

0,377 €

0,359 €

View

Reel

0,257 €

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

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

PRG21BC6R8MM1RA
Murata Electronics
1: 0,421 €
16.803In Stock
12.000Expected 19/05/2026

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

16.803In Stock

12.000Expected 19/05/2026

Cut Tape

0,421 €

0,373 €

0,368 €

0,35 €

View

Reel

0,247 €

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

Aluminium Organic Polymer Capacitors

ECASD40E337M006KA0
Murata Electronics
1: 1,62 €
419In Stock

Mfr. Part No.
ECASD40E337M006KA0

Mouser Part No
81-ECASD40E337M006KA

Murata Electronics

Aluminium Organic Polymer Capacitors

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Datasheet

419In Stock

Cut Tape

1,62 €

1,06 €

0,827 €

0,753 €

Reel

0,511 €

View

Min.: 1
Mult.: 1

: 3.000

PTC (Positive Temperature Coefficient) Thermistors

PRF18AS471QB5RB
Murata Electronics
1: 0,163 €
3.420In Stock

Mfr. Part No.
PRF18AS471QB5RB

Mouser Part No
81-PRF18AS471QB5RB

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors

Learn More

Datasheet

3.420In Stock

Cut Tape

0,163 €

0,152 €

0,134 €

0,126 €

Reel

0,074 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

PTC (Positive Temperature Coefficient) Thermistors

PRF18BB471RB5RB
Murata Electronics
1: 0,181 €
3.044In Stock

Mfr. Part No.
PRF18BB471RB5RB

Mouser Part No
81-PRF18BB471RB5RB

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors

Learn More

Datasheet

3.044In Stock

Cut Tape

0,181 €

0,165 €

0,141 €

0,132 €

Reel

0,108 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

PTC (Positive Temperature Coefficient) Thermistors

PRF18BD471RB5RB
Murata Electronics
1: 0,335 €
1.671In Stock

Mfr. Part No.
PRF18BD471RB5RB

Mouser Part No
81-PRF18BD471RB5RB

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors

Learn More

Datasheet

1.671In Stock

Cut Tape

0,335 €

0,315 €

0,279 €

0,265 €

Reel

0,201 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

PTC (Positive Temperature Coefficient) Thermistors

PRF18BF471RB5RB
Murata Electronics
1: 0,344 €
944In Stock

Mfr. Part No.
PRF18BF471RB5RB

Mouser Part No
81-PRF18BF471RB5RB

Murata Electronics

PTC (Positive Temperature Coefficient) Thermistors

Learn More

Datasheet

944In Stock

Cut Tape

0,344 €

0,321 €

0,285 €

0,271 €

Reel

0,203 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

POSISTOR® PTC Thermistors

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POSISTOR® PTC Thermistors

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