The SFD-2312 piezo active buzzer is a compact electronic sounder designed to generate a clear and continuous beep sound when powered with DC voltage. This active buzzer has a built-in oscillation circuit, allowing it to operate directly without any external driver or signal source. With a wide operating voltage range from 3V to 24V DC, it is highly suitable for alarm systems, alert indicators, and notification circuits in embedded electronics and automation projects in Bangladesh.

Features:

• Piezo active buzzer with built-in oscillation circuit

• No external signal or driver circuit required

• Wide operating voltage range from DC 3V to 24V

• Stable and consistent beep sound output

• Compact enclosed design for easy installation

• Pre-attached wires for quick connection

• Low power consumption

• Reliable performance for continuous operation

• Suitable for both low-voltage and industrial circuits

Specifications:

• Model: SFD-2312

• Buzzer Type: Piezo Active Buzzer

• Operating Voltage: DC 3V – 24V

• Sound Output: Continuous beep

• Drive Type: Self-driven (active)

• Body Material: Plastic enclosure

• Size: 42mm x 16mm

• Connection Type: Wired leads

• Polarity: DC polarity sensitive

• Mounting Type: Panel or enclosure mount

• Operating Environment: Indoor electronic applications

Applications:

• Alarm systems

• Electronic alert indicators

• Security systems

• Industrial control panels

• Arduino and microcontroller projects

• Home automation systems

• Fault indication circuits

• Timer and reminder circuits

• DIY electronics projects

• Educational electronics kits

How to Use:

• Connect the positive wire to the DC power supply positive terminal

• Connect the negative wire to the ground terminal

• Apply DC voltage between 3V and 24V

• The buzzer will emit sound immediately when powered

• Use a switch, relay, or transistor for controlled activation if required

Installation & Usage Instructions:

• Do not exceed the maximum rated voltage

• Ensure correct polarity before applying power

• Mount securely to avoid vibration noise

• Avoid exposure to moisture unless enclosed

• Suitable for continuous or intermittent operation

• Use proper insulation for industrial installations

Package Includes:

• 1 x SFD-2312 DC Piezo Active Buzzer with Wires

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