Piezo Actuator Stack General Specifications

Co-fired monolithic piezoelectric stacks are high quality products, high force density for strong, fast and precise actuation.

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Catalogue co-fired multilayer piezo stacks
Piezotechnics_Catalog_2017_PB3.pdf
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Item  Specified Data Conditions 
 
Operating temperature   25 to +85°C 

 

When applied with a DC voltage: Ambient temperature

   

When driven by an AC voltage: Ambient temperature + temperature rise due to generated heat 

 

Maximum  voltage  150VDC  Note: self-generated heat in case of dynamic operation
 

Displacement 

 see part

 

0 - 150 VDC unipolar

 
see part  -30 - 150 VDC semi-bipolar

Generated force

see part

 

 

The force required for restricting the

displacement to 0 when the maximum driving voltage is applied. 

 
Capacitance 

see part

 

f = 1kHz,V=1Vrms(<10 μ F)

f = 120Hz,V=1Vrms(>10 μ F
Capacitance tolerance  +/20 %   
 
Dissipation factor  5% or less   
 
Insulation resistance  see part Value obtained in 1 minute at 150 VDC 
 
Resonance frequency  see part With both ends of element in free state
Typical value of the element under our test conditions 
 
Tensile strength  4 × 1010 N/m2 

 

Typical value of the element under our test conditions 

 
Young's modulus  4.4 × 1010 N/m2 

 

Typical value of the element under our test conditions 

 

 

Temperature cycle test 

 

 

 

Displacement: Initial value ±20% Capacitance: Initial value ±30% Appearance: No noticeable defect 

Room temperature (3 min) –25°C (30 min.)
Room temperature (3 min) +85°C (30 min) 
 
Repetition of 10 cycles of the above 
 

 

Poission ratio

 

0.3