Loading…
Product type
PTC thermistors, or Positive Temperature Coefficient thermistors, are temperature-sensitive resistors that exhibit an increase in resistance with rising temperature. They are typically made from ceramic materials that contain barium titanate or similar compounds. PTC thermistors are commonly used for overcurrent protection, temperature sensing, and inrush current limiting applications in various electronic circuits.
| Temperature range | -40°C to 125°C |
| Resistance at 25°C | 1 ohm to several megohms |
| Power rating | 0.1W to 5W |
| Tolerance | ±5% to ±20% |
| Package types | Disc, chip, and axial lead |
When selecting a PTC thermistor, consider the specific temperature range and resistance values required for your application. It's important to specify the power rating and tolerance that suit your circuit's needs. Additionally, inquire about the package type that best fits your design. Certifications such as RoHS compliance may also be relevant depending on your industry requirements.
Get quotes for PTC Thermistor
Tell us your requirement — quantity, specs and timeline — and our team sources verified manufacturers and brings you the best quote.
PTC thermistors are primarily used for overcurrent protection and temperature sensing.
As temperature increases, the resistance of a PTC thermistor also increases, limiting current flow.
They are typically made from ceramic materials like barium titanate.
Most PTC thermistors have a maximum operating temperature around 125°C.
Resistance values can range from 1 ohm to several megohms at 25°C.
Common package types include disc, chip, and axial lead.
Yes, humidity can affect the performance of PTC thermistors, so consider environmental conditions.
Consider the required temperature range, resistance, power rating, and package type.