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Zibo Yuhai Electronic Ceramic Co., Ltd.
(Originally, Zibo Wireless Ceramic Factory)
Address :  No.57 Chuangye Road, Development Area Boshan, Zibo City, Shandong Prov. P.R. of China 
Tel : +86-0533-4230012      
Fax : +86-0533-4231700
Email :

Product details
  • Product name: lead free piezoelectric ring Φ27.94×Φ8.5×200khz
  • Product number: BT Φ27.94×Φ8.5×200khz
  • Date: 2016-12-23
  • Views : 112

Piezoelectric ceramic ring 

Lead free Piezo ceramic ring



Yuhai company developped Piezo material BaTiO3. Its high stiffness and low dissipation factor under high electric field make it special for sonar etc. .



Barium titanate lead-free piezoelectric ceramics are important piezo materials for the development of modern science and technology, which was widely used in the manufacture of ultrasonic transducersunderwater acoustic transducerselectroacoustic transducers,  ceramic transformers, ceramic frequency discriminators, high voltage generators, infrared detectors, surface acoustic wave devices, electro-optic devices, ignition and detonation devices, and piezoelectric gyroscope etc.

Application:  military, ocean, fishery, scientific research, mine detection, daily life and other fields.



Application: ultrasonic transducer (fishfinder) 

Piezoelectric Ceramic Material:  BaTiO3 (lead free)


Piezoelectric elements technical data:

Dimensions:  OD 27.94mm, ID8.5mm, height 13-16mm(according to the frequency 200KHz)

Thickness Frequency Fr: 200KHz ± 4 KHz

Frequency Bandwidth ΔF>12KHz

Resonate Impedance R ≤ 20 Ω
Dielectric Loss tg δ: <0.6%

Static capacitance Cs: 470pF±12.5%

Test Condition: 25±3 °C 40~70% R.H.
fr, Zm, Kr => Radial mode vibration
Cs tanδ => LCR meter at 1KHz 1Vrms



Typical value of piezoelectric ceramic materials performance  
Lead free piezo material BaTiO3   Lead-free Material
Properties     BaTiO3
Dielectric Constant ɛTr3   1260
Coupling factor  KP   0.34
  K31   0.196
  K33   0.43
  Kt   0.32
Piezoelectric coefficient d31 10-12m/v -60
  d33 10-12m/v 160
  g31 10-3vm/n -5.4
  g33 10-3vm/n 14.3
Frequency coefficients Np   3180
  N1   2280
  Nt   2675
Elastic compliance coefficient Se11 10-12m2/n 8.4
Machanical quality factor Qm   1200
Dielectric loss factor Tg δ % 0.5
Density ρ g/cm3 5.6
Curie Temperature Tc °C 115
Young's modulus YE11 <109N/m3 119
Poison Ratio     0.33




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