Piezoelectric Extending Transducer (Q220-A4BR-2513XE) Model:Q220-A4BR-2513XE they are not intended to

they are not intended to be center accessed

If an electric field is applied which makes the element thinner

and force from tens to hundreds of Newtons is typical

It has high motion per volt sensitivity but its upper temperature range is limited and its properties are more sensitive to temperature

PSI-5A4E is an industry type 5A (Navy Type II) piezoceramic

Piezoelectric Extending Transducer (Q220-A4BR-2513XE) Model:Q220-A4BR-2513XE they are not intended toA 2 layer element behaves like a single layer when both layers expand (or contract) together. If an electric field is applied which makes the element thinner, extension along the length and width results. Typically, only motion along one axis is utilized. Extender motion on the order of microns to tens of microns, and force from tens to hundreds of Newtons is typical.