Our Standard Piezo Aktuator Stack - General Specifications

 

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 

150 VDC 

Note: self-generated heat in case of dynamic operation

   
 

see part

0 - 150 VDC unipolar

   

Displacement 

see part

 -30 - 150 VDC semi-bipolar

   
   

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 % 

Value obtained in 1 minute at 150 VDC 

   

Dissipation factor 

5% or less 

   
   

Insulation resistance 

see part

   

Resonance frequency

see part

Typical value of the element under our test conditions 

   
   

Tensile strength 

1/10 of Fblock

   

Young's modulus 

4.4 × 1010 N/m2 

   
   
   

Temperature cycle test 

 

Room temperature (3 min) +85°C (30 min)

   

 

Repetition of 10 cycles of the above 

   
 

 

0.3

     

Poission ratio

   

 

   

Displacement: 

Initial value ±20%

 

   

Capacitance:

Initial value ±30% 

 

   

Appearance:

No noticeable defect 

 

   

Table. General Specifications

A co-fired monolithic piezo stack with external insulation technique represents the leading technology. It is with view of life and reliability a high-quality product with exceptional force density for strong, fast and precise positioning and force generation.