PIEZO is a type of sensitive ceramic to voltage changes. If the voltage applied to the PIEZO changes, the ceramic piece will fluctuate. By connecting a diaphragm plate to the PIEZO, sound can produced. PIEZO electric components, in addition to generating sound from voltage, can convert mechanical oscillations into electrical energy. By vibrating the PIEZO electric plate, a voltage difference is created at its two ends. PIEZO structure: The PIEZO electric converter, consists of a crystal component which is located between two metal plates. When the sound wave hits one or both screens, the screens vibrate. The crystal absorbs this vibration, and convert it to a weak AC voltage. Thus, an AC voltage is generated between two metal plates, with a waveform similar to sound waves. Conversely, if an AC signal is applied to the plates, it causes the crystal to vibrate at the same time as the signal voltage. As a result, metal plates also vibrate and cause sound disturbance. PIEZO PK-11N40PQ is a PIEZO electric audio converter, based on inside the hole, which has an intensification frequency of 4100 Hz, operating voltage of 3 to 5 volts, operating temperature range of -20 to 100 degrees Celsius, operating current of 5 mA And ROHS compliant. PIEZO PK-11N40PQ is a PIEZO electric audio converter has the frequency of 4100 Hz, operating voltage of 3 to 5 volts, operating temperature range of -20 to 100 degrees Celsius, operating current of 5 mA and compatible with ROHS. Application: PIEZO electric converters are common in ultrasonic applications such as intrusion detectors and alarms. PIEZO electric devices in AF (audio frequencies) are used as microphones, headphones and alarms. They can be used in technologies without sound. In these applications they can be used to produce predictable and stable signals in RF (radio frequencies) with crystals and ceramics as oscillators. produce predictable and stable signals in RF (radio frequencies).
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