SFM-27 DC 3V-24V Continuous Sound Electronic Active Buzzer

Specifications:

• Model: SFM-27
• Type: Active buzzer (produces sound as soon as power is applied, no need for external oscillation)
• Operating Voltage: DC 3V – 24V
• Operating Current: ≤ 30mA at 12V
• Sound Output: 85dB to 105dB at 10cm (depending on input voltage)
• Tone Type: Continuous (no pulsing or intermittent tone)
• Frequency: 2.3kHz ± 0.5kHz
• Power Consumption: Low power consumption
• Body Material: ABS plastic

Electrical Characteristics:

• Input Voltage Range: 3V to 24V DC
• Rated Voltage: 12V DC
• Maximum Operating Current: 30mA at 12V DC

Mechanical Specifications:

• Diameter: 27mm (body size)
• Height: 10.8mm (from base to top)
• Lead Length: Approximately 10mm or longer, depending on the manufacturer
• Mounting Type: PCB mountable or wire leaded
• Weight: Typically light, a few grams

Environmental Conditions:

• Operating Temperature: -20°C to +60°C
• Storage Temperature: -30°C to +70°C
• Humidity: Can operate in standard humidity conditions (no specific water-proofing rating)

Applications:

• Common Usage: This buzzer is commonly used in electronic appliances, security systems, alarms, timers, and other sound notification systems.