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Industry Background

Ring piezoelectric ceramics are core piezo components widely used in ultrasonic transducers, vibration exciters and sensing detection. PZT-4 material features excellent electromechanical coupling properties, low dielectric loss and stable piezoelectric performance, which makes it ideal for medium and high-frequency ultrasonic applications. With continuous upgrading of ultrasonic equipment and sensing devices, the market demand for ring piezo ceramics with high consistency and strong silver layer adhesion keeps growing. SWT is a professional manufacturer of various piezoelectric components. We can supply ring piezo ceramics in different specifications stably for customer sample testing and bulk purchase.

About SWT

Guangdong SWT Smart Technology Co., Ltd. specializes in piezoelectric ceramics, electro-acoustic components and ultrasonic assemblies. We own a complete piezo ceramic production line covering powder formulation, forming, high-temperature sintering, electrode fabrication and full-parameter testing. Our product portfolio includes ring piezo ceramics, disc piezo ceramics, glass glaze atomizing discs, piezo buzzers and ultrasonic transducers. Every batch undergoes strict quality inspection to guarantee stable performance, supporting OEM and ODM customization. Official website: http://www.swt99.com.

Key Technical Specifications

Model No.: 8C2010-375

• Outer diameter: φ20±0.25 mm
• Inner diameter: φ10±0.38 mm
• Thickness: 2.0±0.05 mm
• Static capacitance: 1500PF±20%
• Dielectric loss: ≤0.5%
• Resonant frequency: 375±10 kHz
• Resonant impedance: ≤100Ω
• Electromechanical coupling coefficient Kp: ≥40%
• Silver layer vertical adhesion strength: ≥1000G
• Operating temperature: -20℃~80℃
• Material: PZT-4

Product Advantages

1. PZT-4 piezoelectric material: High electromechanical coupling coefficient, low dielectric loss and stable piezoelectric performance, suitable for medium and high-frequency ultrasonic working scenarios.
2. Excellent silver layer adhesion: Vertical silver adhesion ≥1000G, the silver electrode hardly peels off, ensuring reliable soldering and long service life.
3. Precise dimension control: Thickness tolerance only ±0.05mm, tight OD and ID tolerance, great batch consistency for customer automatic assembly.
4. Stable electrical performance: Small parameter deviation, controllable resonant impedance, stable operation under wide temperature range of -20~80℃.
5. Flexible delivery: SWT in-house factory supports sample application, small trial orders and mass production, custom size and piezo parameters available upon request.

Applications

• This 20×10×2mm PZT-4 ring piezoelectric ceramic is widely used for medium and high-frequency ultrasonic transducers, distance measuring sensors, vibration excitation devices and small ultrasonic detection equipment.

http://www.swt99.com
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