| 2 Passive components |
| 2.4 Radiofrequency and Microwave components |
| 2.4.9 Filters, resonators and oscillators |
| 2.4.9.1 Filters |
| 2.4.9.1.4 Surface acoustic wave filters (SAW filters) |
| 2.4.9.1.5 Crystal filters |
| 2.4.9.1.8 Customized filters |
| 2.4.9.3 Oscillators |
| 2.4.9.3.1 Crystal oscillators |
| 2.4.9.3.6 Crystal oscillators, miscellaneous |
| 13 Sensor technology |
| 13.2 Sensors for mechanical parameters |
| 13.2.1 Force, torque, torsion, stress |
| 13.2.6 Hardness, elasticity, viscosity |
| 13.4 Sensors for temperature and caloric parameters |
| 13.4.1 Temperature, temperature distribution |
| 13.5 Sensors for climatic parameters |
| 13.5.1 Humidity (gas), evaporation, precipitation, dew point, condensation |
| 13.10 Sensor elements by technology |
| 13.10.6 Piezo electrical |