Kunshan Risun Electronic Co., Ltd.

The Main characteristics of Piezoelectric Ceramic Materials
Produced by Kunshan Risun Electronic Co., Ltd.

Parameters	Symbols	Materials
Parameters	Symbols	PT-A	P-51A	P-52A	P-53A	P-54A	P-5A
Electro mechanical coupling coefficient	k_p	0.10	0.60	0.62	0.62	0.62	0.65
	k₃₁		0.37	0.38	0.38	0.38	0.38
	k₃₃		0.68	0.72	0.72	0.72	0.72
	k_t	0.45	0.45	0.48	0.48	0.48	0.52
Relative dielectric constant	ε^T₃₃/ ε₀	300	800	1650	1900	2200	2300
Piezoelectric strain constant	d₃₃×10^-12C/N	75	280	400	420	450	500
Piezoelectric strain constant	d₃₁×10^-12C/N		-130	-200	-220	-230	-250
Mechanical quality factor	Q_m	2000	110	90	90	90	80
Frequency constant	f_r·d kH_z·cm		200	200	200	200	205
	f_r·l kH_z·cm
	f_r·t kH_z·cm	260					205
Temperature characteristic	\| TKf_r\| (-20℃~80℃) ×10^-6 / ℃	30		400
Temperature characteristic	\| TKC^T\| (-20℃~80℃) ×10^-6 / ℃			2000
Curie temperature	T_c	400	290	280	280	280	280
Dielectric loss	tgδ（%）	1.00	1.50	1.60	1.60	1.60	2.00
Dielectric loss（400V/mm）	tgδ（400V/mm，%）
Features and usage		High frequency resonator	electro-acoustics, medical ultrasonic application	electro-acoustics, medical ultrasonic application	electro-acoustics, medical ultrasonic application	electro-acoustics, medical ultrasonic application	electro-acoustics, medical ultrasonic application

Parameters	Symbols	Materials
Parameters	Symbols	P-5B	P-5C	P-5D	P-42	P-43	P-82
Electro mechanical coupling coefficient	k_p	0.65	0.62	0.60	0.55	0.60	0.53
	k₃₁	0.40	0.40	0.39	0.31	0.32	0.31
	k₃₃	0.76	0.75	0.72	0.63	0.65	0.63
	k_t	0.54	0.50	0.48	0.46	0.50	0.47
Relative dielectric constant	ε^T₃₃/ ε₀	3400	4150	5300	1080	1370	1030
Piezoelectric strain constant	d₃₃×10^-12C/N	660	750	760	250	300	225
Piezoelectric strain constant	d₃₁×10^-12C/N	-300	-350	-340	-120	-150	-100
Mechanical quality factor	Q_m	60	50	40	500	1000	800
Frequency constant	f_r·d kH_z·cm	200	190	190	225	215	230
	f_r·l kH_z·cm				170	160	170
	f_r·t kH_z·cm	190	185	185	195	216	228
Temperature characteristic	\| TKf_r\| (-20℃~80℃) ×10^-6 / ℃
Temperature characteristic	\| TKC^T\| (-20℃~80℃) ×10^-6 / ℃					2500	2100
Curie temperature	T_c	250	220	200	320	350	300
Dielectric loss	tgδ（%）	2.50	3.00	3.20	0.30	0.30	0.30
Dielectric loss（400V/mm）	tgδ（400V/mm，%）				3.0	3.0	1.0
Features and usage		electro-acoustics, medical ultrasonic application	electro-acoustics, medical ultrasonic application	electro-acoustics, medical ultrasonic application	high power transmissions, used for underwater sound transducer	High stability, high power transmissions	high power transmissions , used for ultrasonic cleaning and welding