Automotive Circuit Protection / Thermistors

Murata Electronics Automotive Circuit Protection and Thermistors include a wide lineup of characteristics for various electronic devices, including smartphones and wearable terminals, and automobile/automotive devices. Heat is generated by applied voltage and current, and the resistance changes along with the temperature. Murata thermistors function as a heating element and thermo-sensitive device and play an active role in various applications, such as temperature sensors, circuit protection, and temperature compensation.

Results: 87
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Qty. RoHS ECAD Model Series
Resistance
Tolerance
Mounting Style
Termination Style
Minimum Operating Temperature
Maximum Operating Temperature
Qualification
Packaging
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors 1 OHM 20% SMD 0805
Datasheet
8.231In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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 470 OHM 50% SMD 0603
Datasheet
7.523In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4.000

PRF18_S 470 Ohms 50 % PCB Mount SMD/SMT - 40 C + 150 C AEC-Q200 Reel, Cut Tape, MouseReel
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors
Datasheet
3.890In Stock
Min.: 1
Mult.: 1

PRF18_S 470 Ohms 50 % PCB Mount SMD/SMT - 40 C + 150 C AEC-Q200 Bulk
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors
Datasheet
79In Stock
Min.: 1
Mult.: 1

PRF18_S 470 Ohms 50 % PCB Mount SMD/SMT - 40 C + 150 C AEC-Q200 Bulk
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors
Datasheet
1.424In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4.000

PRF18_S 470 Ohms 50 % PCB Mount SMD/SMT - 20 C + 140 C AEC-Q200 Reel, Cut Tape, MouseReel
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors
Datasheet
3.855In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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
7.011In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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
Datasheet
2.808In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4.000

PRG21-MM1RA 3.3 Ohms 20 % PCB Mount SMD/SMT - 20 C + 85 C Reel, Cut Tape, MouseReel
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors
Datasheet
2.866In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

PRG21-MM1RK Reel, Cut Tape, MouseReel
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors
Datasheet
7.455In Stock
4.000Expected 4/14/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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 22 OHM 20% SMD 0805
Datasheet
10.664In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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 22 OHM 20% SMD 0805
Datasheet
9.233In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

PRG21-MB1RK 22 Ohms 20 % PCB Mount SMD/SMT - 10 C + 60 C Reel, Cut Tape, MouseReel
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors
Datasheet
8.440In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 10.000

PRG15-MM1RC 68 Ohms 20 % PCB Mount SMD/SMT - 20 C + 85 C Reel, Cut Tape, MouseReel
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors
Datasheet
6.575In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4.000

PRG18-MM1RB 10 Ohms 20 % PCB Mount SMD/SMT - 20 C + 85 C Reel, Cut Tape, MouseReel
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors
Datasheet
4.611In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4.000

PRG18-MM1RB 15 Ohms 20 % PCB Mount SMD/SMT - 20 C + 85 C Reel, Cut Tape, MouseReel
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors
Datasheet
4.356In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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
9In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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 3.3 OHM 20% SMD 0603
Datasheet
1.967In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4.000

PRG18-MM1RB 3.3 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
13.055In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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
Datasheet
3.156In Stock
Min.: 1
Mult.: 1
Reel: 4.000

PRG21-MS5RA 4.7 Ohms 20 % PCB Mount SMD/SMT - 40 C + 105 C Ammo Pack
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors
Datasheet
2.370In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

PRG21-MM1RK 400 mOhms 20 % PCB Mount SMD/SMT - 20 C + 85 C Reel, Cut Tape, MouseReel
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors
Datasheet
25.511In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

PRG21-MM1RK 1 Ohms 20 % PCB Mount SMD/SMT - 20 C + 85 C Reel, Cut Tape, MouseReel
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors
Datasheet
1.773In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

PRG21-MM1RK 2.2 Ohms 20 % PCB Mount SMD/SMT - 20 C + 85 C Reel, Cut Tape, MouseReel
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors
Datasheet
2.333In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

PRG21-MM1RK 3.3 Ohms 20 % PCB Mount SMD/SMT - 20 C + 85 C Reel, Cut Tape, MouseReel
Murata Electronics PTC (Positive Temperature Coefficient) Thermistors
Datasheet
57.224In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 10.000

PRF 1 kOhms 50 % PCB Mount SMD/SMT - 40 C + 140 C Reel, Cut Tape, MouseReel