Dielectric Strength
| Material | Dielectric Strength |
| Al2O3 (99.9%) | 9.1 |
| Al2O3 (99.5%) | 9.5 |
| BeO (99.5%) | 10.2 |
| Cordierite | 2.4 - 7.9 |
| Polyester | 21.7 |
| Material | Dielectric Strength |
| Al2O3 (99.9%) | 9.1 |
| Al2O3 (99.5%) | 9.5 |
| BeO (99.5%) | 10.2 |
| Cordierite | 2.4 - 7.9 |
| Polyester | 21.7 |