1.95% alumina or 75% alumina or steatite ceramic,the alumina has been to improved Electrical Specifications,heat compression molding or extrusion moulding.
2.Length tolerance ≤ ± 0.05mm, Diameter tolerance ≤ ± 0.015mm.
3.The ceramic tube can be true of breaking capacity requirements for UL standards asks fuse.
4.The ceramics without crack, without burr,without pinholes,without gaps,without impurities, surface is smooth, dye absorption is passed.
5.The ceramic body is compact, high mechanical shock resistance.
6.Insulation Resistance ≥ 100MΩ (have been checked by megohm in DC500V).
7.Dielectric Strength: AC2000V/50HZ/1min no breakdown phenomenon.
8.Linear expansion coefficient is slight,and good for thermal shock performance.