Buzzer(Passive Buzzer)

A passive buzzer is an audio signaling device that produces sound through an external oscillating signal. Unlike an active buzzer, which generates sound with an internal oscillator, a passive buzzer requires an external signal to produce sound. This type of buzzer is commonly used in various electronic projects and devices for alarms, notifications, and sound effects.

Key Features:

• Requires external oscillating signal for sound generation
• Produces a wide range of frequencies (depending on the input signal)
• Compact and lightweight design
• Easy to integrate into electronic circuits
• Low power consumption

Technical Specifications:

• Type: Passive Buzzer
• Operating Voltage: Typically 3V to 12V (varies by product)
• Frequency Range: 1kHz to 10kHz (depends on external signal)
• Sound Pressure Level: Typically 85dB at 10cm (varies by product)
• Current Consumption: Typically 10mA to 30mA (depends on voltage and signal)
• Dimensions: Varies by product (commonly around 12mm diameter, 8mm height)
• Operating Temperature Range: -20°C to +70°C (varies by product)
• Mounting Type: Through-hole or surface mount

Applications:

• Alarm and notification systems
• Timers and clocks
• Electronic toys and games
• Sound effects in various devices
• Prototyping and DIY projects

Usage:

1. Connect the passive buzzer to your microcontroller or signal generator circuit.
2. Provide an oscillating signal (square wave) to the buzzer’s input pin to generate sound. The frequency of the signal determines the pitch of the sound.
3. Adjust the signal frequency and duty cycle to achieve the desired sound output.
4. Ensure the power supply voltage is within the specified operating range to avoid damage to the buzzer.

Caution:

• Ensure the input signal frequency is within the buzzer’s specified range to avoid distortion or damage.
• Verify the power supply voltage to prevent overvoltage conditions.
• Handle the buzzer carefully to avoid damage to the delicate internal components.

Datasheet:
For detailed technical specifications, refer to the specific product datasheet provided by the manufacturer.