Soft PZT

Sensor Technology Ltd. manufactures Navy Type II, Navy Type V and Navy Type VI (soft PZT) as BM500, BM527 and BM532 respectively. Piezoelectric ceramic (PZT) tubeThe BM500 series materials are lead zirconate titanates with high coupling coefficients and large piezoelectric charge constants.

BM500 – PZT-5 (Navy Type II)

BM500 is the material of choice for the majority of passive sensor applications. We use it for most of our hydrophone designs. In general, BM500 the best choice for converting a mechanical stress into an electrical signal.

BM532 – PZT-5H (Navy Type VI)

BM532 is a modified version of BM500. It has significant increases in both the dielectric and d constants. As a result, it is ideally suited for actuator applications requiring large mechanical displacements and in circuits requiring a high capacitance ceramic.

BM527 – PZT-5J (Navy Type V)

BM527 has dielectric and d constants larger than BM500 but less than BM532. It is a balance between the two materials.

Common applications for soft PZT:

  • passive devices such as hydrophones and microphones
  • low-power, short duty cycle resonators
  • level, flow and pressure sensors
  • actuator applications requiring precise displacement control

Download the Safety Data Sheet (SDS) for Sensor Technology Ltd.’s piezoelectric ceramics. You may use the SDS in place of the now outdated Material Safety Data Sheet (MSDS).