ELECTROMECHANICAL PROPERTIES	402	406
PHYSICAL PROPERTIES
Density (x 103 Kg/m3)	7.6	7.7
Curie Temperature (oC)	350	300
Mechanical QM (-)	500	600
Maximum Operating Temperature (oC)	150	150
ELECTRICAL PROPERTIES @ 25oC
Dielectric Constant @ 1 KHz (-)	1250	1500
Dissipation Factor @ 1 KHz (%)	0.5	0.5
Planar Coupling Factor kp (-)	0.52	0.55
Transverse Coupling factor k31 (-)	0.33	0.35
Longitudinal Coupling Factor k33 (-)	0.67	0.70
Shear Coupling Factor k15 (-)	0.68	0.67
Transverse Charge Coefficient d31 (x 10-12 m/V)	-120	-150
Longitudinal Charge Coefficient d33 (x 10-12 m/V)	275	320
Shear Charge Coefficient d15 (x 10-12 m/V)	480	500
Transverse Voltage Coefficient g31 (x 10-3 V m/N)	-10.8	-11.3
Longitudinal Charge Coefficient g33 (x 10-3 V m/N)	24.9	24.1
Shear Charge Coefficient g15 (x 10-3 V m/N)	43.4	37.7
MECHANICAL PROPERTIES @ 25oC
Young's Modulus (x 1010 N/m2)	7.6	7.2
Poisson's Ratio (-)	0.31	0.22
Elastic Compliance s11E (x 10-12 m2/N)	11.5	14.1
Elastic Compliance s33E (x 10-12 m2/N)	15.0	16.1
FREQUENCY CONSTANTS @ 25oC
Planar Frequency Constant Np (Hz-m)	2159	2180
Transverse Frequency Constant N1 (Hz-m)	1689	1610
Longitudinal Frequency Constant N3 (Hz-m)	2060	2050
Thickness Frequency Constant Nt (Hz-m)	2032	2007
Shear Frequency Constant N5 (Hz-m)	1325	1295
AGEING RATES
Dielectric Constant (% per time decade)	-3.0	-4.0
Resonant Frequency (% per time decade)	0.8	1.0
Coupling Constant (% per time decade)	-2.0	-2.3
ELECTRIC FIELD DEPENDENCE @ 200KV/m [5 V/mil] and 25oC
Dielectric Constant (% increase)	8.0	10.0
Dissipation Factor (% increase)	1.1	1.0
MAXIMUM OPERATING FIELD
AC (KV/m [V/mil])	350 [9]	350 [9]
DC - forward (KV/m [V/mil])	700 [18]	700 [18]
DC - reverse (KV/m [V/mil])	350 [9]	350 [9]