38X15X15mm Ultrasonic Ceramic Piezo Elements 28K/40K Transducer Piezoelectric Wafer

• Type: Piezoelectric Ceramic
• Production Process: Ceramics
• Sensitivity: High
• Application: Ultrasound Welding Transducer
• Usage: Piezoelectric Ceramic Element
• Material: Lead Zirconate Titanate Piezoelectric
• Model NO.: OKS-YHJP-38155
• MOQ: 50PCS
• Transport Package: Foam and Carton
• Specification: 38x15x5mm PZT4
• Origin: Tianjin, China
• HS Code: 8543909000
• Production Capacity: 100000PCS/Per Month

Product Description

Piezoelectric Ceramics that can use electrical and magnetic properties in the electronics industry are called electronic ceramics. Electronic ceramics finally obtain ceramics with new functions through precise control of the surface, grain boundaries and size structure. It can be widely used in energy, household appliances, automobiles, etc.
Electronic ceramic substrate materials In electronic ceramics, insulators occupy the most important position. In particular, the insulating substrate or packaging material for advanced integrated circuits can be a high-purity dense alumina sintered body with a dimensional accuracy of micrometers or less. High-purity dense alumina has insulating properties that metal materials do not have, and thermal conductivity that polymer materials do not.

Ceramic Piezoelectric Materials Piezoelectric elements can convert electrical and mechanical signals. Piezoelectric ceramic elements of a certain shape are mainly made by sintering PbTiO3-PbZrO3 system (PZT). Even if it is a sintered body, the piezoelectricity of a single crystal can be obtained by polarization. The main uses of piezoelectric components are spark plugs and resonators. The resonator acts as a radio wave filter that selectively passes a specific frequency, and is an indispensable component of a tuning circuit such as television (TV) and radio.

Ceramic semiconductor materials In ceramics, there are many semiconductors. The property of resistance changing with temperature can be used for nonlinear resistance. Negative temperature coefficient non-linear resistors (NTC non-linear resistors) decrease in resistance with increasing temperature, and have general semiconductor characteristics. Iron-based metal oxide ceramics are chemically and thermally stable, so they can be used in non-linear resistors to control temperature in a wide range. In contrast, the component called a positive temperature coefficient thermistor (PTC thermistor) uses semiconductive piezoelectric ceramics. Because this kind of ceramic has a sharp increase in resistance at the phase transition temperature, if used as a resistance heating element, it can automatically control the temperature around the phase transition temperature, which is very convenient.

Ultrasonic pressure ceramic wafer product features:
1. The impedance is lower than 2 ohms
2. Stable waveform
3. High electromechanical conversion efficiency
4. Low dielectric loss
5. Low heat

Electronic ceramics can be divided into five categories according to their functions and uses: insulating ceramics, capacitor ceramics, ferroelectric ceramics, semiconductor ceramics and ion ceramics.

 1. Application on special sensitive ceramic automotive sensors
 Electronic ceramic sensors for automobiles are required to be suitable for a long time in the harsh environment of automobiles (high temperature, low temperature, vibration, acceleration, humidity, sound, exhaust gas), and should have the characteristics of small and light weight, good reusability, and wide output range. Ceramic heat-resistance, corrosion-resistance, wear-resistance and its potential excellent electromagnetic and optical functions have been fully utilized in recent years with the advancement of manufacturing technology. Sensors made of sensitive ceramic materials can fully meet the above requirements.

2. Application of ceramic materials in automobile spraying technology
 In recent years, aerospace technology has widely used ceramic film spraying technology and began to be applied to automobiles. The advantages of this technology are good thermal effect, can withstand high temperature and pressure, mature technology, and stable quality. In order to achieve the goal of low heat dissipation, ceramic spraying can be applied to the engine combustion chamber components, such as zirconia spray on the top of the piston and zirconia spray on the cylinder liner. After this treatment, the engine can reduce heat loss, reduce the quality of the engine itself, reduce the size of the engine, and reduce fuel consumption.

3. Application of alumina ceramic automobile shock absorber
 The high-end car damping device comprehensively utilizes the positive piezoelectric effect of sensitive ceramics and the electrostrictive effect of the inverse piezoelectric effect of alumina ceramics to successfully develop intelligent shock absorbers. Due to the use of high-sensitivity ceramic components, this shock absorber has the function of identifying the road surface and can do self-adjustment, which can minimize the vibration of the car due to the rough road surface.

Ring Piezoelectric Ceramic (PZT-4 and pzt-8):

specification	Dimension	Radial frequency	Capacitance	Dielectric dissipation factor	Electromechanical coupling coefficient	Impedance	Thickness frequency	Mechanical
	(mm)	(KHz)	(pf)	tanδ(%)	(Kr)	Zr(Ω)	(KHz))	quality factor
								(Qm)
OKS-YHJP-25103	Φ25×Φ10×3	66.4	1240±12.5%	≤0.3	≥0.46	≤15	683±5%	800
OKS-YHJP-25104	Φ25×Φ10×4	66.4	930±12.5%	≤0.3	≥0.46	≤15	512±5%	800
OKS-YHJP-40125	Φ40×Φ12×5	45.9	2070±12.5%	≤0.3	≥0.46	≤15	410±5%	800
OKS-YHJP-40155	Φ40×Φ15×5	42.2	1960±12.5%	≤0.3	≥0.46	≤15	323±5%	500
OKS-YHJP-40176	Φ40×Φ17×6	40.5	1555±12.5%	≤0.3	≥0.46	≤15	341±5%	800
OKS-YHJP-40205	Φ40×Φ20×5	37.9	1700±12.5%	≤0.3	≥0.47	≤15	410±5%	800
OKS-YHJP-50206	Φ50×Φ20×6	33.2	2490±12.5%	≤0.3	≥0.46	≤15	341±5%	500
OKS-YHJP-501765	Φ50×Φ17×6.5	34.8	2430±12.5%	≤0.3	≥0.46	≤15	315±5%	800
OKS-YHJP-50236	Φ50×Φ23×6	31.2	2340±12.5%	≤0.3	≥0.47	≤15	341±5%	800
OKS-YHJP-50276	Φ50×Φ27×6	29.3	2100±12.5%	≤0.3	≥0.47	≤15	341±5%	800
OKS-YHJP-603010	Φ60×Φ30×10	25.3	1922±12.5%	≤0.3	≥0.47	≤18	205±5%	800
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Piezoelectric Ceramic For cleaning machine:

Specification	Dimension	Radial frequency	Capacitance	Dielectric dissipation factor	Impedance	Kr	Mechanical
	(mm)	(KHz)	(±12.5%)pF	tanδ(%)	(Ω)		quality factor
							(Qm)
OKS-QXJP3030	Φ30×3.0	66.7	2730	≤0.3	≤15	≥0.55	500
OKS-QXJP3530	Φ35×3.0	63	3100	≤0.3	≤15	≥0.55	500
OKS-QXJP3865	Φ38×6.5	59.9	1580	≤0.3	≤15	≥0.55	500
OKS-QXJP4530	Φ45×3.0	50	5100	≤0.3	≤15	≥0.55	500
OKS-QXJP4535	Φ45×3.5	50	4700	≤0.3	≤15	≥0.55	500
OKS-QXJP5030	Φ50×3.0	46	5800	≤0.3	≤15	≥0.55	500
OKS-QXJP5035	Φ50×3.5	46	6300	≤0.3	≤15	≥0.55	500
OKS-QXJP5050	Φ50×5.0	46	4150	≤0.3	≤15	≥0.55	500
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