The **10PV-2B0-R** typically refers to a high-performance **Piezoelectric Diaphragm (Buzzer element)** or a specific series of pressure-sensitive components, often manufactured by companies like Murata or similar electronic ceramic specialists. Below is a detailed breakdown of its electronic characteristics and specifications. --- ## 1. Technical Specifications Piezoelectric components convert electrical energy into mechanical vibrations (sound) or vice versa. The "10PV" designation usually indicates the diameter and series type. | Feature | Specification (Typical) | | :--- | :--- | | **Type** | External Drive Piezoelectric Diaphragm | | **Diameter** | 10mm | | **Resonant Frequency** | 6.0 kHz ± 1.0 kHz | | **Resonant Impedance** | 500 Ω ~ 1000 Ω Max | | **Capacitance** | 10,000 pF ± 30% (at 120Hz) | | **Operating Temperature** | -20°C to +70°C | | **Base Material** | Brass or Stainless Steel | --- ## 2. Construction and Working Principle The device consists of a thin ceramic disc bonded to a metal plate (the diaphragm). * **Piezoelectric Ceramic:** When an alternating voltage is applied, the ceramic expands and contracts. * **Metal Plate:** Since the ceramic is bonded to the metal, the expansion causes the entire plate to bend or "buckle," creating sound waves in the surrounding air. * **Feedback Electrode:** Some models in this series include a third terminal for "self-drive" oscillation circuits, though the "2B0" variation often refers to a standard two-terminal setup. --- ## 3. Circuit Integration Since these are **External Drive** components, they do not have a built-in oscillation circuit. You must provide a square or sine wave to produce sound. ### Example Driving Circuit (Transistor Switch) ```cpp // Logic for driving a Piezo via a Microcontroller (e.g., Arduino) void setup() { pinMode(9, OUTPUT); // Connect to Base of NPN Transistor } void loop() { tone(9, 6000); // Send 6kHz square wave (Resonant Frequency) delay(500); noTone(9); delay(500); } ``` --- ## 4. Common Applications * **Consumer Electronics:** Alarm clocks, calculators, and digital watches. * **Medical Devices:** Heart rate monitors or portable diagnostic beepers. * **Industrial:** Confirmation "clicks" on control panels or safety warning signals. * **Sensors:** Can be used in reverse as a vibration sensor or knock sensor. ---