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Ten small black cylindrical buzzers with two pins each

Unique-Bargains

Unique-Bargains 10pcs AC 2KHZ 3V 5V 12V Electromagnetic Passive Buzzer 16 Ohm 12mm x 6mm control sensor

SKU CH-F2A8-ZPMHK

Pack of 10 passive electromagnetic buzzers operating at 2 kHz with 16 Ω resistance and 12 mm diameter

  • Pack of 10 buzzers gives spares for multiple projects
  • 2 kHz resonance frequency produces a clear audible tone
  • Passive design lets you shape the sound with your own signal
  • 16 Ω impedance matches common low-voltage driver circuits
  • Compact 12 mm diameter fits tight enclosures

10-piece passive buzzer pack

This pack contains ten electromagnetic passive buzzers rated for AC operation at 2KHz with voltage options of 3V, 5V and 12V. Each unit presents a 16 Ohm resistance and measures 12mm by 6mm with a 6mm pin pitch. They suit hobbyists, students and engineers building custom audio signalling into microcontroller projects or test rigs.

Solder-ready through-hole mounting

The 6mm pin spacing matches standard perfboard and breadboard layouts so installation is straightforward with basic soldering tools. Because these are passive devices they require an external oscillating signal; applying DC alone will not produce sound. A common mistake is wiring them like active buzzers and expecting a tone without driving circuitry.

Verify signal source and voltage before ordering

Ensure your controller can generate a 2KHz square wave or PWM output at one of the supported voltages. The 16 Ohm impedance demands adequate drive current so check that your GPIO or transistor stage can supply it. The black plastic body measures 12 by 6mm; confirm the footprint fits your PCB or enclosure layout.

Highlights

  • Pack of 10 buzzers gives spares for multiple projects
  • 2 kHz resonance frequency produces a clear audible tone
  • Passive design lets you shape the sound with your own signal
  • 16 Ω impedance matches common low-voltage driver circuits
  • Compact 12 mm diameter fits tight enclosures

Specifications

No published specifications for this item yet.

Questions about this item

How do I verify the buzzer is producing sound at the 2KHZ resonance frequency after connecting it?

Apply an AC audio signal at 2KHZ to the pins; the passive buzzer will emit a tone at that frequency when driven correctly.

The listing says 10pcs but the package content shows 1 — how many buzzers actually arrive and do I need any extra components?

You receive ten individual 12mm x 6mm passive buzzers; each requires an external audio signal source to operate.

Which voltage version should I choose — 3V, 5V or 12V — for a 16 Ohm passive buzzer?

All three ratings apply to the same 16 Ohm passive buzzer; select the voltage that matches your signal amplitude.

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