Supreme Navy I equivalent 

PCM40 is a hard PZT, low loss material for high power applications and an equivalent of Navy I materials. The high coupling factor and low dielectric and mechanical losses (tgδ, Q_m) combined with high piezoelectric charge constant (d₃₃) make the material ultimate for high power ultrasonic applications.

Higher piezoelectric charge coefficient

PCM40 provides a higher coupling factor and higher piezoelectric charge coefficient than competitive materials.

PCM40 can be exposed to high repetitive quasi-static and dynamic loads and is suitable for both constant and repetitive conditions in sonar, ultrasonic cleaning, and other high power applications
 

PCM40 may advantageously be used in these applications: 

Medical transducers

Hydrophones

Level sensors

Dental cleaners

High power underwater transducers 
 

	Symbol & unit	PCM40
DIELECTRIC PROPERTIES
Relative Dielectric Constant	εT33 / ε0	1250
Dielectric Loss Factor	tgδ [10-4]	25
Dielectric Loss Factor at 400V/m	tgδ [10-4]	140
ELECTROMECHANICAL PROPERTIES
Electromech. Coupling Factors	kp	0.61
	k31	0.34