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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Description Datasheet Availability Pricing (INR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Resistance
Tolerance
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Termination Style
Minimum Operating Temperature
Maximum Operating Temperature
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Murata Electronics PTC (Positive Temperature Coefficient) Thermistors 4.7 OHM 20% SMD 0805
Datasheet
12,730In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

PRG18-MM1RB 4.7 Ohms 20 % PCB Mount SMD/SMT - 20 C + 85 C Reel, Cut Tape, MouseReel
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603
Datasheet
23,376In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

PRF 470 Ohms 50 % PCB Mount SMD/SMT - 20 C + 110 C Reel, Cut Tape, MouseReel
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors 33 OHM 20% SMD 0603
Datasheet
10,625In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

PRG18-MS1RB 33 Ohms 20 % PCB Mount SMD/SMT - 40 C + 75 C AEC-Q100 Reel, Cut Tape, MouseReel
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors
Datasheet
2,514In Stock
Min.: 1
Mult.: 1
: 4,000

PRG21-MS5RA 22 Ohms 20 % PCB Mount SMD/SMT - 40 C + 105 C Reel, Cut Tape
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603
Datasheet
3,845In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

PRF 470 Ohms 50 % PCB Mount SMD/SMT - 20 C + 130 C Reel, Cut Tape, MouseReel
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603
Datasheet
4,057In Stock
Min.: 1
Mult.: 1

PRF 470 Ohms 50 % PCB Mount SMD/SMT - 20 C + 90 C Bulk
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0805
Datasheet
7,670In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

PRF 470 Ohms 50 % PCB Mount SMD/SMT - 20 C + 120 C Reel, Cut Tape, MouseReel
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0805
Datasheet
6,271In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

PRF 470 Ohms 50 % PCB Mount SMD/SMT - 20 C + 140 C Reel, Cut Tape, MouseReel
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors 0603 1kohm 125+/-5degC Curie Point 110degC
Datasheet
10,500In Stock
Min.: 1
Mult.: 1
: 15,000

PRF 1 kOhms 50 % PCB Mount SMD/SMT - 40 C + 150 C Reel, Cut Tape
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors 0603 1kohm 125+/-5degC Curie Point 110degC
Datasheet
10,500In Stock
Min.: 1
Mult.: 1
: 15,000

PRF 1 kOhms 50 % PCB Mount SMD/SMT - 40 C + 150 C Reel, Cut Tape
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors 0603 1kohm 95+/-5degC Curie Point 80degC
Datasheet
10,500In Stock
Min.: 1
Mult.: 1
: 15,000

PRF 1 kOhms 50 % PCB Mount SMD/SMT - 40 C + 120 C Reel, Cut Tape
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors 0603 1kohm 95+/-5degC Curie Point 80degC
Datasheet
10,500In Stock
Min.: 1
Mult.: 1
: 15,000

PRF 1 kOhms 50 % PCB Mount SMD/SMT - 40 C + 150 C Reel, Cut Tape
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors 0.6x0.3mm 1kohm 115+/-5degC
Datasheet
13,599In Stock
Min.: 1
Mult.: 1
: 15,000

PRF 1 kOhms 50 % PCB Mount SMD/SMT - 40 C + 140 C Reel, Cut Tape
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors 0.6x0.3mm 1kohm 105+/-5degC
Datasheet
14,465In Stock
Min.: 1
Mult.: 1
: 15,000

PRF 1 kOhms 50 % PCB Mount SMD/SMT - 40 C + 130 C Reel, Cut Tape
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors 1 OHM 20% SMD 0603
Datasheet
3,055In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

PRG18-MM1RB 1 Ohms 20 % PCB Mount SMD/SMT - 20 C + 85 C Reel, Cut Tape, MouseReel
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors 2.2 OHM 20% SMD 0603
Datasheet
Non-Stocked Lead-Time 12 Weeks
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

PRG18-MM1RB 2.2 Ohms 20 % PCB Mount SMD/SMT - 20 C + 85 C Reel, Cut Tape, MouseReel
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors 470 OHM 50% SMD 0603
Datasheet
20,210In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

PRF 470 Ohms 50 % PCB Mount SMD/SMT - 20 C + 90 C Reel, Cut Tape, MouseReel
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors 220 OHM 20% SMD 0603
Datasheet
37,510In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

PRG18-MB1RB 220 Ohms 20 % PCB Mount SMD/SMT - 20 C + 75 C Reel, Cut Tape, MouseReel
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors 33 OHM 20% SMD 0603
Datasheet
17,719In Stock
1,64,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

PRG18-MB1RB 33 Ohms 20 % PCB Mount SMD/SMT - 20 C + 75 C Reel, Cut Tape, MouseReel
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors 0603 47ohm 20% SMD
Datasheet
13,080In Stock
88,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

PRG18-MB1RB 47 Ohms 20 % PCB Mount SMD/SMT - 20 C + 75 C Reel, Cut Tape, MouseReel
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors 470 OHM 20% SMD 0603
Datasheet
17,815In Stock
16,000Expected 01-06-2026
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

PRG18-MB1RB 470 Ohms 20 % PCB Mount SMD/SMT - 20 C + 75 C Reel, Cut Tape, MouseReel
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors 22 OHM 20% SMD 0805
Datasheet
7,279In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

PRG21-MS1RK 22 Ohms 20 % PCB Mount SMD/SMT - 40 C + 105 C AEC-Q100 Reel, Cut Tape, MouseReel
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors 15 OHM 20% SMD 0805
Datasheet
11,006In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

PRG21-MB1RK 15 Ohms 20 % PCB Mount SMD/SMT - 10 C + 60 C Reel, Cut Tape, MouseReel
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors 1 OHM 20% SMD 0805
Datasheet
5,999In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

PRG21-MM1RA 1 Ohms 20 % PCB Mount SMD/SMT - 20 C + 85 C Reel, Cut Tape, MouseReel
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors 4.7 OHM 20% SMD 0805
Datasheet
6,076In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

PRG21-MM1RA 4.7 Ohms 20 % PCB Mount SMD/SMT - 20 C + 85 C Reel, Cut Tape, MouseReel