Microwave porcelain powder technology parameters
| Type | Dielectric Constant (K) | Qfx | Tf (ppm/ °C)-40~25 °C | Tf (ppm / °C)25~125 °C | Sintering Temperature（°C） |
| NPO10 | 9±1 | > 15000 | ±20 | ±20 | 1350±10 |
| NPO20 | 19±1 | > 30000 | ±20 | ±20 | 1310±10 |
| NPO37 | 37±1 | >40000 | ±20 | ±20 | 1180±10 |
| NPO45 | 47±1 | > 15000 | ±20 | ±20 | 1320±10 |
| NPO65 | 65±2 | > 10000 | ±20 | ±20 | 1310±10 |
| NPO90 | 90±2 | > 5000 | ±20 | ±20 | 1300±10 |
| NPO100 | 101±1 | >4500 | ±20 | ±20 | 1315±10 |
