Description
This 20mm piezo disc element uses the copper base metal plate. The diameter of the outer brass copper metal plate is 20mm. And the diameter of piezoelectric ceramic disk is 15mm. There are pre-soldered wires. Leads length is 50mm and custom. In addition, this 20mm pizeo element is external drive type. There is no distinction between positive and negative pole.
Piezoelectric disc acts as sound-generating element. Their shape is flaky and thickness is only 0.33mm. We can use them for many applications. For example, apply them to make ultrasonic transducer, buzzer & alarm, guitar acoustic contact pickup, drum trigger, microphone, stomp boxes, etc.
Technical data of our 20mm piezo ceramic disc element:
| Piezo element type | External drive |
| Brass base metal disk diameter | Φ20mm ± 0.3mm |
| Piezo ceramic disc diameter | Φ15mm ± 0.3mm |
| Metal plate thickness | 0.13mm ± 0.03mm |
| Total thickness | 0.33mm ± 0.03mm |
| Working frequency | 5.8 ± 0.7KHz |
| Capacitance of 20mm piezo disc | 14000 ± 30%pF |
| Dielectric loss | ≤5% |
| Input Voltage (Vp-p) | ≤30 |
| Wires length | 50mm ± 5mm, and custom |
| Operation temp. | -20 ~ +70℃ |
| Storage temp. | -30 ~ +80℃ |
Features of our 20 mm piezoelectric disk element:
① Clear sound without noise. It can provide clear audio output in a small space.
② Small size, thin and light. The pzt disk element can produce sound effectively in limited space. So it’s easy to integrate into various small electronic devices, such as toys, home appliances and musical instruments.
③ Low power consumption: the 20mm piezo ceramic disc can efficiently convert electrical energy into sound energy. Current consumption is low. Therefore, it’s suitable for long time use without affecting the battery life.
④ In addition, our piezoelectric elements have high sensitivity and good consistency. And they have long service life and high reliability.
⑤ They pass rigorous testing, such as vibration test, tensile test, and so on.
⑥ Moreover, we support small quantity orders. Our factory also provide special custom services. The regular leads length of 20mm pizeo element is 50mm, but we can extend the wires on request. And we can customize different thickness and frequency. Besides brass base material, stainless steel metal plate is also available.
Welcome to contact us for more information about piezoelectric disk element. We can provide good price and quick delivery. The piezo 20mm ceramic disc can meet your many different needs. You can use them for musical instruments, such as drum trigger, acoustic stompbox, guitar pickup, etc. And passive buzzers also need this piezo element.
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