Piezoelectric materials
Specifications

Specifications

Standard piezoelectric ceramic materials
Item Symbol Unit Material name
L-1 L-6A L-201F L-11 L-9 L-155N L-145N H-8
Dielectric constant ε33T/ε0 – 2500 3600 3400 4000 5100 5700 6600 1350
Dielectric loss tanδ % 1.6 1.6 2.1 1.8 2.3 2.2 2.4 0.3
Electromechanical coupling coefficient kp % 69 72 70 70 71 71 71 61
k31 % 42 43 44 43 44 42 43 35
k33 % 77 79 79 75 77 77 75 72
kt % 52 52 53 51 52 51 52 49
Frequency constant Np Hz･m 1900 1890 1945 1930 1890 1870 1910 2200
N31 Hz･m 1400 1420 1440 1420 1410 1430 1430 1620
N33 Hz･m 1250 1200 1290 1320 1300 1350 1310 1490
Nt Hz･m 2040 2050 2080 2060 2040 2070 2050 2020
Piezoelectric constant d31 ×10−12m/V −255 −310 −300 −325 −370 −370 −410 −133
d33 ×10−12m/V 550 715 640 645 745 760 820 312
g31 ×10−3Vm/N −11.4 −9.7 −10.0 −9.2 −8.1 −7.4 −7.1 −11.1
g33 ×10−3Vm/N 24.9 22.4 21.3 18.2 16.4 15.1 14.0 26.1
Elastic constant s11E ×10−12m²/N 16.4 16.2 15.5 16.1 15.7 15.5 15.7 12.0
s33E ×10−12m²/N 23.1 25.5 21.8 20.8 20.9 19.6 20.7 15.7
c11E ×1010N/m² 14.5 16.2 15.3 13.3 13.7 13.6 13.2 14.4
c33E ×1010N/m² 12.3 12.2 12.8 12.4 12.5 12.9 12.4 12.3
Mechanical quality factor Qm – 65 50 60 50 40 50 50 2500
Density ρ ×103㎏/m³ 7.7 7.7 7.8 7.7 7.9 7.9 7.8 7.9
Curie
temperature		 Tc ℃ 280 235 230 210 165 155 145 320
Main applications Various probes Medical ultrasound probes High frequency ultrasound cleaners
Standard electrode types
Gold plating (over nickel plating), Fired silver
Standard resins used for composites
Epoxy resin, Low-density resin

* For other specifications, please inquire.