The EE-EPHA101UAP is a small, hermetically sealed, piezoelectric buzzer manufactured by Panasonic. It is designed for use in small, space-limited electronic products, such as electronic thermometers, electronic doorbells, medical instruments, and others. The buzzer is ideal for use in applications that require a high-frequency acoustic response and simple control. The buzzer comes with an internal oscillator, making its operation easy and simple. The piezo buzzer can produce sound from its integrated piezo-electric element, and with a maximum sound pressure of 83 dB. It consumes an average current of just 2.4 mA. The operating temperature ranges from -20°C to +70°C, making it suitable for a wide range of applications.