Main
characteristics of Piezoelectric Materials for the use of resonator
and filter
Type number
Electro
Mechanical
Coupling Coefficient
Mechanical
Quality Factor
Dielectric Constant
£`T33
Frequency Temperature Coefficient
(x10-6/¢J)
Applicable for
Kp(%)
Kt(%)
Kt3(%)
K15
Qm
Qmt3
PT-1
<10
18
16
3000
290
30
High frequency
(13-60MHz)
resonators and filters
PsrN-1
40
38
500
1000
50
4.5-10.7MHz filters
and resonators
PZT-10
50
40
600
900
50
2-8MHz shear mode resonators
Ceramic sheets
for the use of resonator and filter
Material
Type
Dimension
(mm)
Frequency
Range
Mode
of Vibration
PT-1
30
x 20 x 0.7
12MHz
- 50MHz
Thickness
3rd overtone mode
PsrN-1
30
x 20 x 0.6
5MHz
- 12MHz
Thickness
longitudinal mode
PZT-10
30
x 20 x 7.2
30 x 20 x 6.5
1.8MHz
- 8.0MHz
Thickness
shear mode
Copyright
by Hong Kong Piezo Co Ltd. 2003
Address¡GFlat 15, 9/F., Block A, Veristrong Industrial Centre,
34-36 Au Pui Wan Street, Fo Tan, N.T., Hong Kong.