SCE028MD3PS1B

SCE028MD3PS1B is an alarm, buzzer and siren sound generator, used in a wide range of applications. It has an excellent IP-67 ingress protection rating, so it is perfect for use in wet and dusty environments. The SCE028MD3PS1B is designed to generate gentle tones to loud sounds depending on the user’s requirement.

This sound generator has an operating voltage range of 6 to 24 Volts DC, and a frequency range of 450 Hz to 1500 Hz. This allows the SCE028MD3PS1B to be used with many different systems, such as security systems, medical devices, to home appliances, for attention/danger alerting. Additionally, it can be used in the automotive industry, for danger alerting as well.

The SCE028MD3PS1B is equipped with a trigger switch for an external trigger, to activate the buzzer or siren sound. The maximum sound pressure level produced is 75 dB at one meter, and the sound can be heard even at greater distances. This sound generator can be easily used with many system designs, due to its compact size and easy installation.

Regarding its working principle, the SCE028MD3PS1B is designed around a standard piezo buzzer and contains a microphone, amplifier, and driver circuit with an integrated oscillator, tuned to a frequency of around 450 to 1500 Hz. The input voltage is routed to the oscillator, which creates the alternating signal, which is then amplified and driven to the piezo buzzer.

The signal generated produces a steady sound, at a constant level. This sound signal can then be modified, either through external means, or with the built-in microphone. The microphone can be used to detect sound level variations, and the level can be adjusted accordingly.

In conclusion, the SCE028MD3PS1B with its excellent IP-67 ingress protection rating makes it an ideal choice for applications such as security systems, medical devices, automotive industry for attention/danger alerting. Its working principle makes it easy to integrate this sound generator into any system design.