SFM-27 DC 3–24V Electronic Active Buzzer Alarm Sounder (Continuous Beep)
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The SFM-27 Electronic Active Buzzer is a compact and reliable sound alert device designed for a wide range of electronic applications. It produces a loud, clear continuous beep when powered, making it ideal for alarms, indicators, security systems, and DIY electronics projects.
With a built-in oscillation circuit, this active buzzer requires no external driver, allowing for simple plug-and-play operation. Just apply DC voltage and it immediately generates a stable audible tone.
Technical Specifications
- Model: SFM-27
- Type: Active electronic buzzer
- Sound Type: Continuous tone
- Operating Voltage: 3–24V DC
- Rated Voltage: 12V DC
- Sound Level: 90–95 dB (at 10 cm)
- Frequency: ~3 kHz
- Current Consumption: ≤ 20–30mA
- Material: ABS plastic housing
- Operating Temperature: -20°C to +80°C
- Mounting: Panel/PCB compatible
Ensure your order is placed by 2PM to guarantee next-day delivery! Our commitment to prompt service includes a 24-hour delivery system through our network of carriers, aimed at ensuring your package arrives right on schedule.
Please note, a delivery fee of €4.99 applies for orders under €50. For those in remote areas, be aware that our couriers may apply an extra surcharge. This additional fee helps cover the costs of transporting your items to harder-to-reach locations.