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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 Thermistors 33 OHM 20% SMD 0603

PRG18BB330MS1RB
Murata Electronics
1: $0.518
10,625In Stock

Mfr. Part #
PRG18BB330MS1RB

Mouser Part #
81-PRG18BB330MS1RB

Murata Electronics

PTC Thermistors 33 OHM 20% SMD 0603

Learn More

Datasheet

10,625In Stock

Cut Tape

$0.518

$0.477

$0.449

$0.436

View

Reel

$0.34

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

PTC Thermistors 470 OHM 50% SMD 0603

PRF18BE471QB5RB
Murata Electronics
1: $0.245
23,276In Stock

Mfr. Part #
PRF18BE471QB5RB

Mouser Part #
81-PRF18BE471QB5RB

Murata Electronics

PTC Thermistors 470 OHM 50% SMD 0603

Learn More

Datasheet

23,276In Stock

Cut Tape

$0.245

$0.222

$0.194

$0.184

Reel

$0.12

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

PTC Thermistors 4.7 OHM 20% SMD 0805

PRG18BC4R7MM1RB
Murata Electronics
1: $0.49
12,730In Stock
NRND

Mfr. Part #
PRG18BC4R7MM1RB

Mouser Part #
81-PRG18BC4R7MM1RB

NRND

Murata Electronics

PTC Thermistors 4.7 OHM 20% SMD 0805

Learn More

Datasheet

12,730In Stock

Cut Tape

$0.49

$0.452

$0.399

$0.338

Reel

$0.243

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

PTC Thermistors

PRG21AR220MS5RA
Murata Electronics
1: $1.43
1,314In Stock

Mfr. Part #
PRG21AR220MS5RA

Mouser Part #
81-PRG21AR220MS5RA

Murata Electronics

PTC Thermistors

Learn More

Datasheet

1,314In Stock

Cut Tape

$1.43

$1.08

$0.933

$0.901

View

Reel

$0.498

Min.: 1
Mult.: 1

: 4,000

PTC Thermistors 470 OHM 50% SMD 0603

PRF18BG471RB5RB
Murata Electronics
1: $0.59
4,057In Stock

Mfr. Part #
PRF18BG471RB5RB

Mouser Part #
81-PRF18BG471RB5RB

Murata Electronics

PTC Thermistors 470 OHM 50% SMD 0603

Learn More

Datasheet

4,057In Stock

$0.59

$0.549

$0.482

$0.456

View

Min.: 1
Mult.: 1

PTC Thermistors 470 OHM 50% SMD 0805

PRF21BC471QB5RA
Murata Electronics
1: $0.662
7,670In Stock

Mfr. Part #
PRF21BC471QB5RA

Mouser Part #
81-PRF21BC471QB5RA

Murata Electronics

PTC Thermistors 470 OHM 50% SMD 0805

Learn More

Datasheet

7,670In Stock

Cut Tape

$0.662

$0.567

$0.49

$0.402

View

Reel

$0.251

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

PTC Thermistors 470 OHM 50% SMD 0603

PRF18BC471RB5RB
Murata Electronics
1: $0.59
3,745In Stock

Mfr. Part #
PRF18BC471RB5RB

Mouser Part #
81-PRF18BC471RB5RB

Murata Electronics

PTC Thermistors 470 OHM 50% SMD 0603

Learn More

Datasheet

3,745In Stock

Cut Tape

$0.59

$0.549

$0.485

$0.462

Reel

$0.346

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

PTC Thermistors 470 OHM 50% SMD 0805

PRF21BA471QB5RA
Murata Electronics
1: $0.504
6,271In Stock

Mfr. Part #
PRF21BA471QB5RA

Mouser Part #
81-PRF21BA471QB5RA

Murata Electronics

PTC Thermistors 470 OHM 50% SMD 0805

Learn More

Datasheet

6,271In Stock

Cut Tape

$0.504

$0.474

$0.418

$0.397

Reel

$0.276

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

PTC Thermistors 0603 1kohm 125+/-5degC Curie Point 110degC

PRF03BA102QB7RL
Murata Electronics
1: $0.173
10,500In Stock
New Product

Mfr. Part #
PRF03BA102QB7RL

Mouser Part #
81-PRF03BA102QB7RL

New Product

Murata Electronics

PTC Thermistors 0603 1kohm 125+/-5degC Curie Point 110degC

Learn More

Datasheet

10,500In Stock

Cut Tape

$0.173

$0.157

$0.138

$0.115

View

Reel

$0.079

Min.: 1
Mult.: 1

: 15,000

PTC Thermistors 0603 1kohm 125+/-5degC Curie Point 110degC

PRF03BA102QS7RL
Murata Electronics
1: $0.216
10,500In Stock
New Product

Mfr. Part #
PRF03BA102QS7RL

Mouser Part #
81-PRF03BA102QS7RL

New Product

Murata Electronics

PTC Thermistors 0603 1kohm 125+/-5degC Curie Point 110degC

Learn More

Datasheet

10,500In Stock

Cut Tape

$0.216

$0.19

$0.167

$0.134

View

Reel

$0.092

Min.: 1
Mult.: 1

: 15,000

PTC Thermistors 0603 1kohm 95+/-5degC Curie Point 80degC

PRF03BD102QB7RL
Murata Electronics
1: $0.173
10,500In Stock
New Product

Mfr. Part #
PRF03BD102QB7RL

Mouser Part #
81-PRF03BD102QB7RL

New Product

Murata Electronics

PTC Thermistors 0603 1kohm 95+/-5degC Curie Point 80degC

Learn More

Datasheet

10,500In Stock

Cut Tape

$0.173

$0.157

$0.138

$0.115

View

Reel

$0.079

Min.: 1
Mult.: 1

: 15,000

PTC Thermistors 0603 1kohm 95+/-5degC Curie Point 80degC

PRF03BD102QS7RL
Murata Electronics
1: $0.216
10,378In Stock
New Product

Mfr. Part #
PRF03BD102QS7RL

Mouser Part #
81-PRF03BD102QS7RL

New Product

Murata Electronics

PTC Thermistors 0603 1kohm 95+/-5degC Curie Point 80degC

Learn More

Datasheet

10,378In Stock

Cut Tape

$0.216

$0.19

$0.167

$0.134

View

Reel

$0.092

Min.: 1
Mult.: 1

: 15,000

PTC Thermistors 0.6x0.3mm 1kohm 115+/-5degC

PRF03BB102QB7RL
Murata Electronics
1: $0.158
13,599In Stock
New Product

Mfr. Part #
PRF03BB102QB7RL

Mouser Part #
81-PRF03BB102QB7RL

New Product

Murata Electronics

PTC Thermistors 0.6x0.3mm 1kohm 115+/-5degC

Learn More

Datasheet

13,599In Stock

Cut Tape

$0.158

$0.143

$0.124

$0.118

View

Reel

$0.076

Min.: 1
Mult.: 1

: 15,000

PTC Thermistors 0.6x0.3mm 1kohm 105+/-5degC

PRF03BC102QB7RL
Murata Electronics
1: $0.158
14,465In Stock
New Product

Mfr. Part #
PRF03BC102QB7RL

Mouser Part #
81-PRF03BC102QB7RL

New Product

Murata Electronics

PTC Thermistors 0.6x0.3mm 1kohm 105+/-5degC

Learn More

Datasheet

14,465In Stock

Cut Tape

$0.158

$0.143

$0.124

$0.118

View

Reel

$0.076

Min.: 1
Mult.: 1

: 15,000

PTC Thermistors 100 OHM 20% SMD 0603

PRG18BB101MB1RB
Murata Electronics
1: $0.331
16,626In Stock
40,000On Order

Mfr. Part #
PRG18BB101MB1RB

Mouser Part #
81-PRG18BB101MB1RB

Murata Electronics

PTC Thermistors 100 OHM 20% SMD 0603

Learn More

Datasheet

16,626In Stock

40,000On Order

Cut Tape

$0.331

$0.301

$0.264

$0.251

Reel

$0.181

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

PTC Thermistors 220 OHM 20% SMD 0603

PRG18BB221MB1RB
Murata Electronics
1: $0.317
28,495In Stock

Mfr. Part #
PRG18BB221MB1RB

Mouser Part #
81-PRG18BB221MB1RB

Murata Electronics

PTC Thermistors 220 OHM 20% SMD 0603

Learn More

Datasheet

28,495In Stock

Cut Tape

$0.317

$0.297

$0.261

$0.248

Reel

$0.187

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

PTC Thermistors 33 OHM 20% SMD 0603

PRG18BB330MB1RB
Murata Electronics
1: $0.317
49,038In Stock
132,000On Order

Mfr. Part #
PRG18BB330MB1RB

Mouser Part #
81-PRG18BB330MB1RB

Murata Electronics

PTC Thermistors 33 OHM 20% SMD 0603

Learn More

Datasheet

49,038In Stock

132,000On Order

Cut Tape

$0.317

$0.297

$0.258

$0.236

Reel

$0.181

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

PTC Thermistors 470 OHM 20% SMD 0603

PRG18BB471MB1RB
Murata Electronics
1: $0.317
29,660In Stock

Mfr. Part #
PRG18BB471MB1RB

Mouser Part #
81-PRG18BB471MB1RB

Murata Electronics

PTC Thermistors 470 OHM 20% SMD 0603

Learn More

Datasheet

29,660In Stock

Cut Tape

$0.317

$0.297

$0.261

$0.248

Reel

$0.18

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

PTC Thermistors 22 OHM 20% SMD 0805

PRG21AR220MS1RK
Murata Electronics
1: $0.619
7,279In Stock

Mfr. Part #
PRG21AR220MS1RK

Mouser Part #
81-PRG21AR220MS1RK

Murata Electronics

PTC Thermistors 22 OHM 20% SMD 0805

Learn More

Datasheet

7,279In Stock

Cut Tape

$0.619

$0.575

$0.536

$0.508

View

Reel

$0.376

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

PTC Thermistors 15 OHM 20% SMD 0805

PRG21BB150MB1RK
Murata Electronics
1: $0.677
11,006In Stock

Mfr. Part #
PRG21BB150MB1RK

Mouser Part #
81-PRG21BB150MB1RK

Murata Electronics

PTC Thermistors 15 OHM 20% SMD 0805

Learn More

Datasheet

11,006In Stock

Cut Tape

$0.677

$0.638

$0.589

$0.56

View

Reel

$0.418

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

PTC Thermistors 0.2 OHM 20% SMD 0805

PRG21BC0R2MM1RA
Murata Electronics
1: $0.878
8,236In Stock

Mfr. Part #
PRG21BC0R2MM1RA

Mouser Part #
81-PRG21BC0R2MM1RA

Murata Electronics

PTC Thermistors 0.2 OHM 20% SMD 0805

Learn More

Datasheet

8,236In Stock

Cut Tape

$0.878

$0.825

$0.77

$0.733

View

Reel

$0.553

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

PTC Thermistors 1 OHM 20% SMD 0805

PRG21BC1R0MM1RA
Murata Electronics
1: $0.734
5,779In Stock

Mfr. Part #
PRG21BC1R0MM1RA

Mouser Part #
81-PRG21BC1R0MM1RA

Murata Electronics

PTC Thermistors 1 OHM 20% SMD 0805

Learn More

Datasheet

5,779In Stock

Cut Tape

$0.734

$0.69

$0.644

$0.612

View

Reel

$0.451

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

PTC Thermistors 4.7 OHM 20% SMD 0805

PRG21BC4R7MM1RA
Murata Electronics
1: $0.72
5,766In Stock

Mfr. Part #
PRG21BC4R7MM1RA

Mouser Part #
81-PRG21BC4R7MM1RA

Murata Electronics

PTC Thermistors 4.7 OHM 20% SMD 0805

Learn More

Datasheet

5,766In Stock

Cut Tape

$0.72

$0.677

$0.631

$0.60

View

Reel

$0.436

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

PTC Thermistors 1 OHM 20% SMD 0603

PRG18BC1R0MM1RB
Murata Electronics
1: $0.49
3,055In Stock
NRND

Mfr. Part #
PRG18BC1R0MM1RB

Mouser Part #
81-PRG18BC1R0MM1RB

NRND

Murata Electronics

PTC Thermistors 1 OHM 20% SMD 0603

Learn More

Datasheet

3,055In Stock

Cut Tape

$0.49

$0.455

$0.402

$0.383

Reel

$0.284

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

PTC Thermistors 2.2 OHM 20% SMD 0603

PRG18BC2R2MM1RB
Murata Electronics
1: $0.461
Non-Stocked Lead-Time 12 Weeks
NRND

Mfr. Part #
PRG18BC2R2MM1RB

Mouser Part #
81-PRG18BC2R2MM1RB

NRND

Murata Electronics

PTC Thermistors 2.2 OHM 20% SMD 0603

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Cut Tape

$0.461

$0.433

$0.383

$0.364

Reel

$0.271

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

POSISTOR® PTC Thermistors

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POSISTOR® PTC Thermistors

All Results (65)

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