Type II soft PZT tuned for higher sensitivity than TRS 200 while holding a 370 °C Curie point.

| Navy type | Type II |
|---|---|
| Density | 7.95 g/cm³ |
| Curie temperature (Tc) | 370 °C |
| Dielectric constant (Kᵀ₃₃) | 2100 |
| Dielectric loss | 0.018 |
| Coercive field (Ec) | 16 kV/cm |
| Piezoelectric coefficient (d33) | 450 pm/V |
| Transverse coefficient (d31) | -202 pm/V |
| Shear coefficient (d15) | 550 pm/V |
| Electromechanical coupling (k33) | 0.72 |
| Thickness coupling (kt) | 0.50 |
| Planar coupling (kp) | 0.67 |
| Shear coupling (k15) | 0.68 |
| Planar frequency constant (Np) | 1925 Hz·m |
| Thickness frequency constant (Nt) | 2035 Hz·m |
Every High-Sensitivity Soft PZT grade on its piezoelectric coefficient.
Shapes, poling modes, markets and documents for TRS 207.
