General-purpose Navy Type II soft PZT: balanced coupling and sensitivity at a 340 °C Curie point.

| Navy type | Type II |
|---|---|
| Density | 7.90 g/cm³ |
| Curie temperature (Tc) | 340 °C |
| Dielectric constant (Kᵀ₃₃) | 2050 |
| Dielectric loss | 0.018 |
| Coercive field (Ec) | 13.5 kV/cm |
| Piezoelectric coefficient (d33) | 400 pm/V |
| Transverse coefficient (d31) | -190 pm/V |
| Shear coefficient (d15) | 550 pm/V |
| Electromechanical coupling (k33) | 0.73 |
| Thickness coupling (kt) | 0.49 |
| Planar coupling (kp) | 0.66 |
| Shear coupling (k15) | 0.68 |
| Planar frequency constant (Np) | 2065 Hz·m |
| Thickness frequency constant (Nt) | 2160 Hz·m |
Every High-Sensitivity Soft PZT grade on its piezoelectric coefficient.
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