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Product Description
Product Introduction
Calcium Titanate (CaTiO₃) is a high-purity ceramic material used extensively in the electronics industry as a functional additive and matrix material, particularly in the manufacture of Positive Temperature Coefficient (PTC) thermistors. With a stable perovskite crystal structure, CaTiO₃ exhibits excellent thermal stability, dielectric properties, and compatibility with other titanates such as BaTiO₃ and SrTiO₃.
In PTC thermistor applications, Calcium Titanate serves as a vital component to adjust the temperature coefficient and control the resistance-temperature curve. It is commonly blended with barium titanate and dopants to achieve precise switching temperatures, reliable performance, and long-term durability. Its role in improving temperature sensitivity, voltage resistance, and electrical insulation makes it indispensable in modern circuit protection and temperature sensing technologies.
Our Calcium Titanate powder is produced under strict quality control, ensuring high purity, uniform particle size distribution, and excellent sinterability—crucial for achieving consistent results in ceramic processing and device performance. It is well-suited for applications in both traditional thermistor ceramics and advanced multilayer components.
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: What is the role of Calcium Titanate in PTC thermistors?
CaTiO₃ is used to modify the dielectric and thermal properties of BaTiO₃-based ceramics, fine-tuning the PTC characteristics and ensuring reliable switching behavior.
2: Is your Calcium Titanate compatible with barium titanate systems?
Yes, it is fully compatible and often used in combination with BaTiO₃ to enhance performance in thermistor ceramics.
3: What particle sizes are available?
We offer nano, submicron, and custom particle size options to meet various production and sintering requirements.
4: Can Calcium Titanate improve the thermal stability of thermistors?
Yes, it contributes to improved temperature stability, maintaining consistent performance across a wide operating range.
5: Is the material suitable for multilayer PTC thermistors?
Absolutely. Its excellent sinterability and stability make it well-suited for multilayer fabrication technologies.
6: Does the product meet environmental compliance standards?
Yes, our Calcium Titanate is RoHS and REACH compliant, with no hazardous substances included.
