Buzzer 12V

Description:

A 12V buzzer typically comes in two main types:

1. Active Buzzer: This type generates sound when a DC voltage is applied. It has an internal oscillator and requires a simple on/off signal to produce sound. Active buzzers are straightforward to use and can be connected directly to a power source.
2. Passive Buzzer: This type requires an external audio signal or waveform to produce sound. It produces sound based on the frequency of the input signal. Passive buzzers can be more versatile but require more complex driving circuits.

Specifications:

While exact specifications may vary by manufacturer and model, typical specifications for a 12V buzzer include:

• Operating Voltage: 12V DC
• Current Consumption: Ranges typically from 10 mA to 30 mA (check the specific model for details)
• Sound Level: Typically between 70 dB and 90 dB at 10 cm
• Frequency:
  • Active Buzzer: Emits a fixed frequency sound (often around 2 kHz)
  • Passive Buzzer: Generates sound depending on the input frequency (usually operates within 1 kHz to 4 kHz)
• Size:  common size  12mm in diameter
• Operating Temperature: Usually ranges from -20°C to +70°C
• Mounting Type: Can be panel-mounted, through-hole, or surface-mounted based on design
• Protection: Some models offer environmental protection (like IP ratings) for outdoor or harsh environment use
• Lifespan: Typically rated for millions of cycles; specifics depend on the manufacturer and type
• Weight: Usually lightweight (around 10-30 grams depending on size and design)

Applications:

• Alarm systems (security and fire alarms)
• Timer applications (buzzers for timers)
• Home appliances (oven timers, laundry machines)
• Game devices (sound indicators)

Conclusion:

When selecting a 12V buzzer, it’s important to consider the specific requirements of your project, including sound level, duration of sound, and whether you need an active or passive buzzer. Various manufacturers may offer additional features or specifications, so it’s advisable to consult the datasheet for the specific model you intend to use.