Ceramic Electronic Components for EV Relays and HVDC Contactors,
95% Alumina Porcelain Housing for Arc Extinguish
1. Description:
The new energy series ceramics are produced by high purity complex
alumina and nano metallization. It is suitable for brazing of
different materials such as copper, aluminum and felling. This
series consist of HVDC relay ceramic housing, HVDC contactor
ceramic shield, Fusegear ceramic case, ceramic connector for power
battery cell.
2. Key Words:
New energy, EV relay, HVDC contactor, Fast acting fusegear, Vacuum
interrupter, Power battery cell connector, Arc extinguish,uniform texture and good batch stability,high flexural strength,
high tensile strength and good air tightness,high frequency, high
power and good safety components,white, pink or
customized,dry-processing,95% alumina,compact, continuous, smooth
and weldability,PHEV vehicles, power charing stations, power
storage stations and urban commuting shuttles.
3. Parameters:
| Product Parameters |
| Physical Property | Material | 95% Alumina |
| Production Process | Dry Pressing |
| Product Dimension | Per customers' drawing |
| Density (g/cm3) | 3.70-3.75g/cm3 |
| Water Absorption | 0% |
| Mechanical Performance | Flexural Strength (Mpa) | 310Mpa |
| Modulus of Elasticity (Gpa) | 310Gpa |
| Hardness (Gpa) | 12.9Gpa |
| Poisson Ratio | 0.23 |
| Thermal Character | Linear Thermal Expansion Coefficient | 7.2 |
| Heat Conductivity (W/mk) | 23 |
| Electrical Property | Dielectric Constant | 9.2 |
| Dielectric Loss Tangent (x10-4) | 8 |
| Insulation Strength (x106V/M) | 15 |
| Metalized Ceramic Performance | Air Tightness (Pa·m3/s) | ≤10-8 |
| Bulk Resistivity (Ω·cm) | ≥1010 (20°C), ≥106 (300°C) |
| Bonding Strength (Mpa) | ≥120Mpa |
| Metallization Thickness (μm) | ≥20μm |
