Project Description
PTC Thermistor Alloy
PTC Thermistor Resistance Alloy with medium resistivity, high positive temperature coefficient of resistance.
Chemical composition, %
| Alloy | Brand | Fe | S | Ni | C | P | Standard |
| Thermistor Resistance Alloys | PTC | Bal | ≤0.01 | 77-82 | ≤0.05 | ≤0.01 | JB/T 12515-2015 |
Physical and Mechanical Properties
| Alloy | Brand | Resistivity, μΩ.m | Temperature Coefficient of Resistivity, ℃ | Elongation, % | Tensile Strength, MPa | Standard |
| Thermistor Resistance Alloys | PTC | 0.20-0.38 | ≥3000-5000 | – | ≥390 | JB/T 12515-2015 |
Features
- High postive temperature coefficient resistance
- Automatic temperature control
- Automatic power adjustment
- Constant current
- Current limiting
- Energy saving
- Long service life
Applications
This material is widely used in all kinds of electric heater, also used to make thermistor, temperature measuring cathode thermometer and current limiting regulator.