EFM-250 Internally Driven Piezo Buzzer For Status Alerts

Use EFM-250 when you need a simple, repeatable audible alert without an external drive circuit. It fits well in control panels, test fixtures, and embedded assemblies where a single-tone buzzer is enough to signal state changes or faults. EFM-250 is rated for 12 VDC and supports a 3 to 15 VDC operating range. It delivers a minimum 85 dB sound pressure level at 12 VDC measured at 10 cm, with a 4.0 ± 0.5 kHz oscillating frequency. Max current draw is 8 mA at 12 VDC, which helps keep power budgets predictable. Operating temperature is -40 to +85 °C. Request a quote for EFM-250.