Piezo Bimorphs-Piezoelectric Actuators-Transducers and Sensors-Products-Zhejiang Jiakang Electronics Co., Ltd.

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Series: Piezo Bimorph Actuator

Applications： haptic touch,jacquard comb and needle selector for textile machine, piezoelectric flow valve, blind braille, energy harvesting devices etc.

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Detail Introduction

Piezoelectric Bimorph

Made up of two single-chips and one plate, the piezoelectric bimorph, when applied electrical signal, will bring about displacement, or deform which can produce electrical

signal. In light of this, it can be applied to many areas. Jacquard comb, needle-selector for

textile machines; piezoelectric flow valves for automobile; medical equipment，such as insulin pump, collagen enhancer; small-scale piezoelectric pump, generation device which

can harvest energy; blind braille etc.

Main Parameters:

Part Number	HTZ
Size	10~60(L)x2~20(W)x0.5~0.9(T)mm
Dielectric Losstg	≤3.0%
Relative Dielectric ConstantεT33 / ε0	780x10、850x10
Recommended Material	P-666、P-676

Electrical Data	Symbol	Main Materials
Electrical Data	Symbol	P-659	P-660	P-663	P-664	P-666	P-667	P-668	P-669	P-672	P-673	P-676	P-678	P-679	P-690
Piezoelectric coupling coefficien	k_p	0.58	0.70	0.67	0.67	0.78	0.10	0.68	0.62	0.70	0.68	0.7	0.72	0.65	0.74
	k₃₁	0.32	0.39	0.38	0.37	0.42		0.39	0.35	0.41	0.39	0.45	0.42	0.38	0.40
	k₃₃	0.60	0.73	0.70	0.70	0.78		0.70	0.68	0.72	0.70	0.80	0.72	0.70	0.75
	k_t	0.42	0.46	0.45	0.45	0.50	0.45	0.46	0.44	0.46	0.46	0.50	0.47	0.46	0.48
Relative dielectric constant	ε^T₃₃/ ε₀	1100	3200	2200	2800	4500	180	2300	1400	3400	2200	6000	2750	1600	3800
Piezoelectric charge constant	d₃₃×10^-12C/N	280	700	400	480	780	70	430	250	600	430	850	540	320	710
Piezoelectric charge constant	d₃₁×10^-12C/N	-120	-350		-200	-350		-230	-130	-280	-230	-420	-260	-150	-360
Mechanical quality factor	Q_m	100	60	80	500	60	2500	90	1000	80	90	60	80	1000	70
Frequency constant	f_r·d kH_z·cm	230	190	200	220	180		200	230	190	200	180	190	230	190
Frequency constant	f_r·t kH_z·cm	210	200	200				225	200		225			200	200
Temperature characteristics	\| TKf_r\| (-20℃~80℃) ×10^-6 / ℃	100	260	300	120	400	30	150	100	300	100	400	200	100	260
Temperature characteristics	\| TKC^T\| (-20℃~80℃) ×10^-6 / ℃	1500	4500	5000	2500	6000		1800	1500	4000	2000	6000	3000	1500	4000
Curie temperature	T_c	320	220	220	230	180	450	355	340	230	325	140	280	330	210
Dielectric loss	tgδ（%）	1.20	1.80	2.00	0.50	2.60	0.70	2.00	0.30	2.30	2.00	2.60	1.50	0.40	1.80
Dielectric loss	tgδ（400V/mm，%）								1.00					1.00