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Thermistors - PTC

PTC Thermistors are available at Mouser Electronics from industry leading manufacturers. Mouser is an authorized distributor for many PTC thermistor manufacturers including Amphenol, TDK, Murata, NXP, Vishay & more. Please view our large selection of PTC thermistors below.

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Part #

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

PRG18BB330MB1RB
Murata Electronics
1: Rp4.403
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

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Datasheet

131In Stock

55.700On Order

Cut Tape

Rp4.403

Rp3.889

Rp3.412

Rp3.100

Reel

Rp2.000

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: Rp7.889
4.130In Stock

Mfr. Part No.
PRG21AR420MB1RA

Mouser Part No
81-PRG21AR420MB1RA

Murata Electronics

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

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Datasheet

4.130In Stock

Cut Tape

Rp7.889

Rp7.412

Rp6.971

Rp6.678

View

Reel

Rp5.375

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: Rp11.191
2.491In Stock
4.000Expected 13/04/2026

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 13/04/2026

Cut Tape

Rp11.191

Rp10.512

Rp9.833

Rp9.356

View

Reel

Rp5.962

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: Rp8.990
475In Stock
4.000Expected 12/03/2026

Mfr. Part No.
PRG21BC0R6MM1RA

Mouser Part No
81-PRG21BC0R6MM1RA

Murata Electronics

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

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Datasheet

475In Stock

4.000Expected 12/03/2026

Cut Tape

Rp8.990

Rp8.402

Rp7.907

Rp7.632

View

Reel

Rp6.164

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: Rp8.806
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

Rp8.806

Rp8.292

Rp7.742

Rp7.375

View

Reel

Rp5.467

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

PTC (Positive Temperature Coefficient) Thermistors PTFC101B1G0 PT100,2.0X2.3,B

NB-PTCO-002
Measurement Specialties
1: Rp45.131
808In Stock
20.000Expected 25/05/2026

Mfr. Part No.
NB-PTCO-002

Mouser Part No
824-NB-PTCO-002

Measurement Specialties

PTC (Positive Temperature Coefficient) Thermistors PTFC101B1G0 PT100,2.0X2.3,B

Datasheet

808In Stock

20.000Expected 25/05/2026

Rp45.131

Rp35.591

Rp34.307

Rp33.573

View

Min.: 1
Mult.: 1

PTC (Positive Temperature Coefficient) Thermistors PTFC102B1A0 PT1000,2.0X2.3,B

NB-PTCO-157
Measurement Specialties
1: Rp45.865
6.076In Stock

Mfr. Part No.
NB-PTCO-157

Mouser Part No
824-NB-PTCO-157

Measurement Specialties

PTC (Positive Temperature Coefficient) Thermistors PTFC102B1A0 PT1000,2.0X2.3,B

Datasheet

6.076In Stock

Rp45.865

Rp44.030

Rp41.829

Rp40.361

Rp39.994

Min.: 1
Mult.: 1

PTC (Positive Temperature Coefficient) Thermistors T=5K 100deg C

B59008C0100A040
EPCOS / TDK
1: Rp19.997
567In Stock

Mfr. Part No.
B59008C0100A040

Mouser Part No
871-B59008C100A40

EPCOS / TDK

PTC (Positive Temperature Coefficient) Thermistors T=5K 100deg C

Learn More

Datasheet

567In Stock

Rp19.997

Rp19.080

Rp17.484

Rp16.713

View

Min.: 1
Mult.: 1

B59008

250 Ohms

PCB Mount

Radial

0 C

+ 40 C

Bulk

PTC (Positive Temperature Coefficient) Thermistors T=5K 110deg C

B59008C0110A040
EPCOS / TDK
1: Rp19.997
1.316In Stock
2.000Expected 13/04/2026

Mfr. Part No.
B59008C0110A040

Mouser Part No
871-B59008C110A40

EPCOS / TDK

PTC (Positive Temperature Coefficient) Thermistors T=5K 110deg C

Learn More

Datasheet

1.316In Stock

2.000Expected 13/04/2026

Rp19.997

Rp19.080

Rp17.832

Rp17.025

View

Min.: 1
Mult.: 1

B59008

250 Ohms

PCB Mount

Radial

0 C

+ 40 C

Bulk

PTC (Positive Temperature Coefficient) Thermistors T=5K 130deg C

B59008C0130A040
EPCOS / TDK
1: Rp19.997
754In Stock

Mfr. Part No.
B59008C0130A040

Mouser Part No
871-B59008C130A40

EPCOS / TDK

PTC (Positive Temperature Coefficient) Thermistors T=5K 130deg C

Learn More

Datasheet

754In Stock

Rp19.997

Rp19.080

Rp17.484

Rp16.713

View

Min.: 1
Mult.: 1

B59008

250 Ohms

PCB Mount

Radial

0 C

+ 40 C

Bulk

PTC (Positive Temperature Coefficient) Thermistors T=5K 150deg C

B59008C0150A040
EPCOS / TDK
1: Rp19.997
884In Stock

Mfr. Part No.
B59008C0150A040

Mouser Part No
871-B59008C150A40

EPCOS / TDK

PTC (Positive Temperature Coefficient) Thermistors T=5K 150deg C

Learn More

Datasheet

884In Stock

Rp19.997

Rp19.080

Rp17.484

Rp16.713

View

Min.: 1
Mult.: 1

B59008

250 Ohms

PCB Mount

Radial

0 C

+ 40 C

Bulk

PTC (Positive Temperature Coefficient) Thermistors T=5K 70deg C

B59008C0070A040
EPCOS / TDK
1: Rp19.997
1.652In Stock
1.000Expected 01/06/2026

Mfr. Part No.
B59008C0070A040

Mouser Part No
871-B59008C70A40

EPCOS / TDK

PTC (Positive Temperature Coefficient) Thermistors T=5K 70deg C

Learn More

Datasheet

1.652In Stock

1.000Expected 01/06/2026

Rp19.997

Rp19.080

Rp17.832

Rp17.025

View

Min.: 1
Mult.: 1

B59008

250 Ohms

PCB Mount

Radial

0 C

+ 40 C

Bulk

PTC (Positive Temperature Coefficient) Thermistors T=5K 80deg C

B59008C0080A040
EPCOS / TDK
1: Rp19.997
539In Stock

Mfr. Part No.
B59008C0080A040

Mouser Part No
871-B59008C80A40

EPCOS / TDK

PTC (Positive Temperature Coefficient) Thermistors T=5K 80deg C

Learn More

Datasheet

539In Stock

Rp19.997

Rp19.080

Rp17.832

Rp17.025

View

Min.: 1
Mult.: 1

B59008

250 Ohms

PCB Mount

Radial

0 C

+ 40 C

Bulk

PTC (Positive Temperature Coefficient) Thermistors T=5K 90deg C

B59008C0090A040
EPCOS / TDK
1: Rp19.997
1.674In Stock

Mfr. Part No.
B59008C0090A040

Mouser Part No
871-B59008C90A40

EPCOS / TDK

PTC (Positive Temperature Coefficient) Thermistors T=5K 90deg C

Learn More

Datasheet

1.674In Stock

Rp19.997

Rp19.080

Rp17.832

Rp17.025

View

Min.: 1
Mult.: 1

B59008

250 Ohms

PCB Mount

Radial

0 C

+ 40 C

Bulk

PTC (Positive Temperature Coefficient) Thermistors D 052-A 70-A 40 NAT 70 Grade C

B59052D1070A040
EPCOS / TDK
1: Rp22.749
1.371In Stock

Mfr. Part No.
B59052D1070A040

Mouser Part No
871-B59052D1070A040

EPCOS / TDK

PTC (Positive Temperature Coefficient) Thermistors D 052-A 70-A 40 NAT 70 Grade C

Datasheet

1.371In Stock

Rp22.749

Rp21.648

Rp20.364

Rp19.447

View

Min.: 1
Mult.: 1

Limit Temperature Sensor Housing style

570 Ohms

Ring Lug

Radial

0 C

+ 40 C

Bulk

PTC (Positive Temperature Coefficient) Thermistors D 052-A 110-A 40 NAT 110 Grade C

B59052D1110A040
EPCOS / TDK
1: Rp36.875
600In Stock

Mfr. Part No.
B59052D1110A040

Mouser Part No
871-B59052D1110A040

EPCOS / TDK

PTC (Positive Temperature Coefficient) Thermistors D 052-A 110-A 40 NAT 110 Grade C

Datasheet

600In Stock

Rp36.875

Rp28.436

Rp23.666

Rp23.299

View

Min.: 1
Mult.: 1

Limit Temperature Sensor Housing style

550 Ohms

Ring Lug

Radial

0 C

+ 40 C

Bulk

PTC (Positive Temperature Coefficient) Thermistors T=5K 100deg C

B59100C0100A070
EPCOS / TDK
1: Rp16.144
336In Stock

Mfr. Part No.
B59100C0100A070

Mouser Part No
871-B59100C100A70

EPCOS / TDK

PTC (Positive Temperature Coefficient) Thermistors T=5K 100deg C

Learn More

Datasheet

336In Stock

Rp16.144

Rp15.154

Rp14.218

Rp13.558

View

Reel

Rp11.008

Min.: 1
Mult.: 1

Reel: 2.400

Heater Element Round shape

100 Ohms

PCB Mount

Radial

0 C

+ 40 C

Ammo Pack

PTC (Positive Temperature Coefficient) Thermistors T=5K 60deg C

B59100M1060A070
EPCOS / TDK
1: Rp64.394
267In Stock
800Expected 23/02/2026

Mfr. Part No.
B59100M1060A070

Mouser Part No
871-B59100M1060A70

EPCOS / TDK

PTC (Positive Temperature Coefficient) Thermistors T=5K 60deg C

Learn More

Datasheet

267In Stock

800Expected 23/02/2026

Rp64.394

Rp57.606

Rp55.038

Rp52.103

Reel

Rp45.498

View

Min.: 1
Mult.: 1

Reel: 200

Limit Temperature Sensor Leaded style

100 Ohms

Wire

Radial

0 C

+ 40 C

Ammo Pack

PTC (Positive Temperature Coefficient) Thermistors 120C +/-5C Motor Prot Single Sensor

B59100M1120A070
EPCOS / TDK
1: Rp78.704
675In Stock
2.400Expected 17/02/2026

Mfr. Part No.
B59100M1120A070

Mouser Part No
871-B59100M1120A070

EPCOS / TDK

PTC (Positive Temperature Coefficient) Thermistors 120C +/-5C Motor Prot Single Sensor

Learn More

Datasheet

675In Stock

2.400Expected 17/02/2026

Cut Tape

Rp78.704

Rp59.074

Rp52.470

Rp49.901

Reel

Rp48.617

View

Min.: 1
Mult.: 1

Reel: 200

Motor Protector Single Sensor Style

100 Ohms

25 %

Wire

Radial

0 C

+ 40 C

Reel, Cut Tape

PTC (Positive Temperature Coefficient) Thermistors T=7K 170deg C

B59100M1170A070
EPCOS / TDK
1: Rp101.820
79In Stock
3.000On Order

Mfr. Part No.
B59100M1170A070

Mouser Part No
871-B59100M1170A70

EPCOS / TDK

PTC (Positive Temperature Coefficient) Thermistors T=7K 170deg C

Learn More

Datasheet

79In Stock

3.000On Order

Rp101.820

Rp90.446

Rp81.456

Rp75.586

Reel

Rp69.164

View

Min.: 1
Mult.: 1

Reel: 200

Motor Protector Single Sensor Style

100 Ohms

Wire

Radial

0 C

+ 40 C

Ammo Pack

PTC (Positive Temperature Coefficient) Thermistors 63Vdc 82mA 55ohms PTC Overcurrent

B59115P1080A062
EPCOS / TDK
1: Rp29.170
170In Stock
1.000Expected 17/02/2026

Mfr. Part No.
B59115P1080A062

Mouser Part No
871-B59115P1080A062

EPCOS / TDK

PTC (Positive Temperature Coefficient) Thermistors 63Vdc 82mA 55ohms PTC Overcurrent

Learn More

Datasheet

170In Stock

1.000Expected 17/02/2026

Cut Tape

Rp29.170

Rp26.969

Rp26.051

Rp22.382

Reel

Rp14.879

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1.000

Heater Element Rectangular shape

16 Ohms

25 %

PCB Mount

SMD/SMT

- 40 C

+ 125 C

Reel, Cut Tape, MouseReel

PTC (Positive Temperature Coefficient) Thermistors 4.6 OHM 25% SMD 3225

B59201P1080A62
EPCOS / TDK
1: Rp29.170
480In Stock

Mfr. Part No.
B59201P1080A62

Mouser Part No
871-B59201P1080A62

EPCOS / TDK

PTC (Positive Temperature Coefficient) Thermistors 4.6 OHM 25% SMD 3225

Learn More

Datasheet

480In Stock

Cut Tape

Rp29.170

Rp26.969

Rp26.785

Rp22.382

Reel

Rp15.190

View

Min.: 1
Mult.: 1

Reel: 1.000

B59x01P

4.6 Ohms

25 %

- 40 C

+ 125 C

Reel, Cut Tape

PTC (Positive Temperature Coefficient) Thermistors PTC Thermistor P 1201-A 120-A 62

B59201P1120A62
EPCOS / TDK
1: Rp23.666
535In Stock

Mfr. Part No.
B59201P1120A62

Mouser Part No
871-B59201P1120A62

EPCOS / TDK

PTC (Positive Temperature Coefficient) Thermistors PTC Thermistor P 1201-A 120-A 62

Learn More

Datasheet

535In Stock

Cut Tape

Rp23.666

Rp22.566

Rp21.098

Rp19.447

Reel

Rp16.108

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1.000

B59x01P

4.6 Ohms

25 %

PCB Mount

SMD/SMT

- 40 C

+ 125 C

Reel, Cut Tape, MouseReel

PTC (Positive Temperature Coefficient) Thermistors T=5K 100deg C

B59300M1100A070
EPCOS / TDK
1: Rp90.262
250In Stock

Mfr. Part No.
B59300M1100A070

Mouser Part No
871-B59300M1100A70

EPCOS / TDK

PTC (Positive Temperature Coefficient) Thermistors T=5K 100deg C

Learn More

Datasheet

250In Stock

Rp90.262

Rp81.089

Rp77.787

Rp73.751

Reel

Rp65.862

View

Min.: 1
Mult.: 1

Reel: 200

Inrush Current Limiter Housing Type

300 Ohms

Wire

Radial

0 C

+ 40 C

Ammo Pack

PTC (Positive Temperature Coefficient) Thermistors T=5K 130deg C

B59300M1130A070
EPCOS / TDK
1: Rp101.637
301In Stock

Mfr. Part No.
B59300M1130A070

Mouser Part No
871-B59300M1130A70

EPCOS / TDK

PTC (Positive Temperature Coefficient) Thermistors T=5K 130deg C

Learn More

Datasheet

301In Stock

Rp101.637

Rp91.180

Rp87.327

Rp82.740

Reel

Rp65.862

View

Min.: 1
Mult.: 1

Reel: 200

Motor Protector Sensor Triple Sensor Style

300 Ohms

Wire

Radial

0 C

+ 40 C

Ammo Pack

Thermistors - PTC

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2322
2381
B57213
B57237
B57238
B59004
B59006
B59008
B59012
B59050
B59069
B59084
B59100
B59102
B59116S
B59196
B59201
B59204
B59249R
B59314

200 mOhms
300 mOhms
400 mOhms
450 mOhms
500 mOhms
600 mOhms
700 mOhms
800 mOhms
900 mOhms
1 Ohms
1.1 Ohms
1.2 Ohms
1.3 Ohms
1.5 Ohms
1.65 Ohms
1.7 Ohms
1.8 Ohms
1.9 Ohms
2.1 Ohms
2.2 Ohms

+ 40 C
+ 55 C
+ 60 C
+ 70 C
+ 75 C
+ 80 C
+ 85 C
+ 90 C
+ 100 C
+ 105 C
+ 110 C
+ 120 C
+ 125 C
+ 130 C
+ 133 C
+ 140 C
+ 145 C
+ 150 C
+ 155 C
+ 160 C