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Ten black cylindrical plastic buzzers with two wires each

Unique-Bargains

Unique-Bargains 10PCS DC12V Active Alarm Buzzer 12mm x 9.5mm

SKU CH-FR0C-2Q53P

Pack of 10 DC 12 V active alarm buzzers with 2-wire connectors and 5 cm leads

  • 10-piece pack simplifies bulk installation
  • DC 12 V rating matches common power supplies
  • Two-wire connector enables quick wiring
  • Compact 12 mm × 9.5 mm body fits tight spaces
  • High sound pressure ensures audible alerts

Pack of 10 DC12V Active Alarm Buzzers

This pack contains ten active electronic alarm buzzers rated for 12V DC operation. Each unit features a plastic housing measuring 12mm by 9.5mm with a 5cm two-wire lead for simple connection. They are suited for hobbyists, students or technicians adding audible alerts to custom circuits, security prototypes or automation projects.

Low current draw and compact footprint

The supplier notes low wastage, meaning minimal current consumption during normal signalling tasks. At 19g total weight for the set, the buzzers add negligible mass to a breadboard or permanent install. The small 12mm diameter body fits tight enclosures without forcing layout changes or blocking adjacent components.

Steady output under continuous drive

Because these are active devices, they produce sound as long as 12V is applied without needing an external frequency source. The high voice pressure is maintained for the duration of the signal, making them suitable for sustained alarm tones rather than only brief beeps. Plastic construction resists vibration fatigue during extended operation.

Highlights

  • 10-piece pack simplifies bulk installation
  • DC 12 V rating matches common power supplies
  • Two-wire connector enables quick wiring
  • Compact 12 mm × 9.5 mm body fits tight spaces
  • High sound pressure ensures audible alerts

Specifications

No published specifications for this item yet.

Questions about this item

How do I wire the 12V buzzer's two leads correctly, and which polarity mistake causes silence?

Connect the red wire to positive 12V and the black wire to ground; reversing them will prevent the internal oscillator from starting, so the buzzer stays silent.

What part of the 10-piece buzzer pack wears out first during continuous operation?

The internal piezoelectric diaphragm fatigues over time, reducing the high voice pressure that the supplier highlights as a key character.

At what point does the plastic housing become a thermal limit during sustained 12V use?

The 12mm by 9.5mm plastic body offers minimal heat dissipation, so prolonged duty cycles can soften the housing before the electronics fail.

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