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Product Description
Product Introduction
Calcium titanate is a basic inorganic dielectric material with excellent dielectric properties, temperature properties, mechanical properties and optical properties. It is widely used in ceramic capacitors, PTC thermistors, microwave antennas, filters and stainless steel welding rods.
Under a strict quality control system, Wuxi Noble Electronics Co., Ltd. uses solid phase synthesis technology to prepare calcium titanate with excellent quality and stable quality.
An In-organic compound with excellent dielectricity ,temperature ,mechnical, optical characteristics, Calcium Titanate is wildely used in ceramic capacitor, PTC thermistor, microwave component, welding electrode , photosensitive material industry ...
Physical Properties
| Item | Spec | Remark |
| Particle Size Distribution (D50) |
0.2 ~ 30 μm |
Laser Particle Size Analizer |
| Water Content (wt%) |
0.2 ~ 30μm ： < 0.5 |
105℃ × 1Hr |
| Ignition Loss (wt%) |
0.2 ~ 30μm ： < 1.0 |
800℃ × 1Hr |
Chemical Composition
| Product No. | CT-1 Series | CT-2 Series | CT-3 Series |
| CaO/TiO2( Mole Ratio) | 1.000±0.01 | 1.000±0.02 | 1.000±0.03 |
| MgO(wt%) | <0.05 | <0.1 | <1.0 |
| Fe2O3 (wt%) | <0.05 | <0.1 | <0.5 |
| K2O+Na2O(wt%) | <0.05 | <0.1 | <0.5 |
| Al2O3 (wt%) | <0.1 | <0.2 | <0.5 |
| SiO2(wt%) | <0.1 | <0.2 | <0.5 |
Product Application
Calcium titanate (CaTiO₃), as an important electronic raw material, is widely used in the production of PTC thermistors (Positive Temperature Coefficient Thermistor). PTC thermistors are resistor materials with positive temperature coefficient characteristics, and their resistance increases with increasing temperature. Calcium titanate has excellent electrical properties, thermal stability and antioxidant ability, making it an ideal choice for manufacturing PTC thermistors. The following are the applications of calcium titanate in PTC thermistors:
1. Key materials for PTC thermistors
Calcium titanate has a high positive temperature coefficient (PTC) and plays a role in regulating temperature sensitivity in PTC thermistors.
When the temperature rises, the resistance of calcium titanate-based PTC thermistors increases rapidly. This feature makes it very important in applications such as overcurrent protection and temperature protection.
2. Application in electrical appliances and electrical protection
Calcium titanate-based PTC thermistors are widely used in power circuits, home appliance circuits, and automotive circuits as temperature control and overcurrent protection components, which can effectively prevent electrical equipment from being damaged by overload or overheating.
For example, in the fields of motor protection, fuse replacement, switching power supply, etc., calcium titanate materials can effectively limit current and avoid circuit failure.
3. Improve thermal stability and reliability
As a PTC thermistor material, calcium titanate has strong thermal stability. Even in high-temperature working environments, it can maintain good electrical properties and ensure long-term stable operation of the equipment.
Suitable for application environments that require high-temperature stability and durability, such as battery protection, automotive electrical systems, and electronic components.
4. Widely used in overload protection
As an overload protection element, calcium titanate-based PTC thermistors are widely used in electrical equipment such as power electronic equipment, transformers, and relays. When the current is too large, the resistance value increases, thereby limiting the current flow and effectively preventing the circuit from being damaged.
FAQ
1. How is calcium titanate used in the production of PTC thermistors?
As the base material of PTC thermistors, calcium titanate has a high positive temperature coefficient (PTC). As the temperature increases, its resistance increases significantly, making it an ideal material for regulating temperature and overcurrent. By adding calcium titanate to the resistor material, the functions of temperature protection and overload protection can be achieved.
2. What are the advantages of calcium titanate in PTC thermistors?
Calcium titanate has good temperature coefficient, thermal stability and electrical insulation properties, which enables PTC thermistors to work efficiently and stably in scenarios such as overcurrent protection and overtemperature protection. Its high positive temperature coefficient also enables it to respond quickly when the current is too large or the temperature is too high to prevent circuit damage.
3. How does a PTC thermistor work?
The working principle of the PTC thermistor is based on the property that the resistance of its material increases with increasing temperature. When the current is too large, the heat accumulation increases the resistance, thereby limiting the current and avoiding circuit overload or equipment damage. PTC thermistors made of calcium titanate-based materials have faster response speeds and higher stability when the temperature changes.
4. What applications are calcium titanate-based PTC thermistors suitable for?
Calcium titanate-based PTC thermistors are mainly used in overcurrent protection, temperature protection, power circuits, motor protection, battery protection, and electronic component protection. They can be used in products that require temperature or current protection, such as home appliances, automotive electronics, computers and communication equipment.
5. What are the technical advantages of calcium titanate in PTC thermistors?
The application of calcium titanate materials in PTC thermistors has the advantages of strong temperature sensitivity, good thermal stability and strong anti-aging ability, ensuring the reliability and stability of thermistors in long-term use. In addition, the low loss and high dielectric properties of calcium titanate materials help improve the overall performance and response speed of thermistors.
