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Piezo ceramics specification

Standard product

 

Properties Symbol & unit NCE40 NCE41 NCE46* NCE51 NCE53 NCE55 NCE56 NCE57* NCE59* NCE80
 
DIELECTRIC PROPERTIES (tolerances +/- 10%)
Relative Dielectric Constant εT33 / ε0 1250 1350 1300 1850 1600 5000 2900 1800 2900 1050
Dielectric Loss Factor tgδ [10-4] 25 40 30 190 130 220 140 170 190 20
Dielectric Loss Factor at 400V/mm tgδ [10-4] 140 200        
    100
 
ELECTROMECHANICAL PROPERTIES (tolerances +/- 5%)
Electromech. Coupling Factors* kp 0.58 0.57 0.57 0.65 0.56 0.62 0.64 0.59 0.64 0.55
  k31 0.34 0.33 0.33 0.37 0.32 0.39 0.37 0.33 0.37 0.30
  k33 0.70 0.68 0.68 0.72 0.65 0.72 0.74 0.70 0.75 0.68
  kt 0.50 0.50 0.47 0.51 0.47 0.50 0.50 0.47 0.52 0.48
Piezoelectric Charge Constants -d31 [10-12 C/N] 140 130 130 195 150 260 250 170 240 100
  d33 [10-12 C/N] 320 310 330 460 360 670 580 425 575 240
Piezoelectric Voltage Constants -g31[10-3 Vm/N] 11 11 11 13 9 9 9 11 10 11
  g33 [10-3 Vm/N] 27 25 28 27 23 19 20 27 23 27
Frequency Constants  NEp [m/s] 2160 2280 2230 1940 2180 1970 2000 2010 1970 2270
  NDt [m/s] 1980 2000 2040 2010  2040 1990 2030 1950 1960 2050
  NE1 [m/s] 1470 1600 1500 1400     1530 1400 1410 1610
  ND3 [m/s] 1340 1500 1800 1390     1400 1500 1500 1500
 
PHYSICAL PROPERTIES (tolerances +/- 5%)
Mechanical Quality Factor Qm 700 1400  >1000 80 80 70 80 80 90  1000
Density ρ [103 kg/m3] 7.75 7.9 7.7 7.8 7.6 8 7.65 7.7 7.45 7.8
Elastic Compliances sE11 [10-12 m2/N] 13 13 13 16 16 17 18 17 17 11
  sE33 [10-12 m2/N] 17 16 20 19 18 21 20 23 23 14
Curie Temperature Tc [°C] 325 290 330 340 340 170 250 350 235 305

 

 *) For multilayer components only.
**) Measured in accordance with standard EN 50324.


The values listed above are for reference purposes only and cannot be applied unconditionally to other shapes and dimensions. Values vary depending on the components' actual shape, surface finish, shaping process and post-processing.

 

 
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