Barium Titanate is a critical ferroelectric ceramic material. For high-end electronic components like MLCCs (Multi-Layer Ceramic Capacitors), you must prioritize purity levels of 99.9% (3N) or higher. Key technical indicators include the Ba/Ti molar ratio, which should be strictly controlled (typically 0.995 to 1.005) to ensure stable dielectric properties. Additionally, verify the particle size distribution (D50); nano-grade powders (under 100nm) are essential for thin-layer capacitors, while micron-grade is suitable for PTC thermistors.