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-6C1	P-51A	P-52A	P-53A	P-54A
Electro mechanical coupling coefficient	k_p	0.10	0.46	0.60	0.62	0.62	0.62
	k₃₁	0.06	0.34	0.37	0.38	0.38	0.38
	k₃₃	0.45	0.58	0.68	0.72	0.72	0.72
	k_t	0.45	0.40	0.45	0.48	0.48	0.48
Relative dielectric constant	ε^T₃₃/ ε₀	350	1270	920	1900	2190	2530
Piezoelectric strain constant	d₃₃×10^-12C/N	75	300	280	400	420	450
Piezoelectric strain constant	d₃₁×10^-12C/N	-6.5	-120	-130	-200	-220	-230
Mechanical quality factor	Q_m	2000	1200	110	90	90	90
Frequency constant	f_r·d kH_z·cm	255	200	200	200	200	200
	f_r·l kH_z·cm	205	140	143	143	143	143
	f_r·t kH_z·cm	260	205	210	210	205	205
Temperature characteristic	\| TKf_r\| (-20℃~80℃) ×10^-6 / ℃	30	35		400		400
Temperature characteristic	\| TKC^T\| (-20℃~80℃) ×10^-6 / ℃		50		2000		2000
Curie temperature	T_c	400	280	290	280	280	280
Dielectric loss	tgδ（%）	1.0	0.3	1.5	1.6	1.6	1.6
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-5B4	P-5C2	P-42	P-43	P-82
Electro mechanical coupling coefficient	k_p	0.65	0.62	0.55	0.60	0.53
	k₃₁	0.40	0.40	0.31	0.32	0.31
	k₃₃	0.76	0.75	0.63	0.65	0.63
	k_t	0.54	0.50	0.46	0.50	0.47
Relative dielectric constant	ε^T₃₃/ ε₀	3910	4770	1240	1580	1180
Piezoelectric strain constant	d₃₃×10^-12C/N	620	650	250	300	225
Piezoelectric strain constant	d₃₁×10^-12C/N	-300	-350	-120	-150	-100
Mechanical quality factor	Q_m	60	50	500	1000	800
Frequency constant	f_r·d kH_z·cm	200	190	225	215	230
	f_r·l kH_z·cm	143	143	170	160	170
	f_r·t kH_z·cm	190	185	195	216	228
Temperature characteristic	\| TKf_r\| (-20℃~80℃) ×10^-6 / ℃	300
Temperature characteristic	\| TKC^T\| (-20℃~80℃) ×10^-6 / ℃	2000	4000		2500	2400
Curie temperature	T_c	250	220	320	350	300
Dielectric loss	tgδ（%）	2.5	3.0	0.3	0.3	0.3
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	high power transmissions, used for underwater sound transducer	High stability, high power transmissions	high power transmissions , used for ultrasonic cleaning and welding