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PL122, PL140 PICMA™ Multilayer Bender Actuators

Product Description
PICMA™-series multilayer bender piezo actuators provide a deflection of up to 2 mm, forces up to 2 N (200 grams) and response times in the millisecond range. These multilayer piezoelectric components are manufactured from ceramic layers of only about 25 µm thickness. They feature internal silver-palladium electrodes and ceramic insulation applied in a co-firing process. The bender have two outer active areas and one central electrode network dividing the actuator in two segments of equal capacitance, similar to a classical parallel bimorph.

PICMA™ Bender piezo actuators offer several advantages over classic bimorph components manufactured by gluing together two ceramic plates (0.1 to 1 mm thick): faster response time and higher stiffness. The main advantage, however, is the drastically reduced (by a factor of 3 to 10) operating voltage of 60 V only. The reduced voltage allows smaller drive electronics and new applications, such as in medical equipment. Additionally these devices offer an improved humidity resistance due to the 100% ceramic insulation.

Long Lifetime and High Performance-Ideal for Dynamic Operation
PICMA™ Bender actuators are superior to conventional actuators in high-endurance situations. They show substantially longer lifetimes both in static and dynamic operation, even in harsh environments. The monolithic, ceramic-insulated design makes polymer-film insulation unnecessary. Diffusion of water molecules into the insulation layer, the major cause of dielectric breakdown, is greatly reduced by the use of cofired, outer ceramic insulation.

The high Curie temperature of 320 °C gives PICMA™ actuators a usable temperature range extending up to 150 °C, well above the 80 °C limit of conventional multilayer actuators. At the low end, operation down to a few kelvin is possible (with some reduction in performance specifications).

  • For OEM Applications
  • Ceramic Insulation
  • Positioning Range up to 2 mm
  • Fast Response (< 10 msec)
  • Nanometer-Range Resolution
  • Low Operating Voltage
  • Vacuum-Compatible Versions
  • Available with Integrated Position Sensor

  • Special OEM and Bench-Top Amplifiers/Drivers Available
Product PL122, PL140 PICMA™ Multilayer Bender Actuators
Company Physik Instrumente - Products
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Physik Instrumente - Products
Auf der Römerstr. 1 D-76228 Karlsruhe Germany

Tel: +49 721 4846-0
Fax: +49 721 4846-1019

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