Beeping Active Buzzer (Auto-Sound)

The Beeping Active Buzzer SFM-27 is a compact electronic component that produces an automatic beeping sound when connected to a DC power source. It is commonly used in alarm systems, timers, and electronic warning indicators. Its built-in sound circuit makes it easy to use without any external driver or signal. It can be easily used with Arduino, Raspberry Pi, ESP32, and other development boards for simple and effective audio alerts.

• Model: SFM-27

• Type: Active Buzzer (Auto-Sound / Beeping)

• Operating Voltage: 3V to 24V DC

• Sound Type: Intermittent Beep (Beeping)

• Sound Level: ≥ 85 dB at 10 cm

• Current Consumption: ≤ 30 mA

• Frequency: Around 3 kHz

• Dimensions: Approx. 30 mm diameter × 15 mm height

• Lead Length: Approx. 10 cm

• Operating Temperature: –20°C to +60°C

• Mounting: Flanged with screw holes