50 Pack 16 Ohm Passive Electromagnetic Buzzers 2KHz 3V–12V Clear Sound DIY Project Ready

Product Overview A universal passive electromagnetic buzzer with 16 ohm impedance designed for use in a wide range of electronic projects. The device follows the same driving method and working principle as ordinary speakers and requires an external audio drive signal to produce sound. The robust metal shell protects the internal structure for reliable long term operation. Key Features Item type: Electromagnetic passive buzzer Impedance: 16 ohm for broad compatibility Rated voltages: 3V, 5V, 9V, 12V Typical drive frequency: 2 kHz Package: 50 pieces per Passive design: requires an audio drive source to generate sound Durable shell construction that protects internal components Benefits and Why You Need It Flexible integration: The 16 ohm impedance and common voltage options make this buzzer suitable for many microcontroller and audio driver setups. Clear sound when driven: Because it is a passive buzzer, it produces crisp, defined tones when fed with the appropriate audio signal or square wave driver. Long term reliability: A strong shell shields the internal parts from impact and handling, helping maintain consistent performance over time. Bulk quantity: Supplied as 50 units, convenient for batch production, classrooms, labs, and shops. Compatibility and Performance Works with standard audio drive outputs, signal generators, and PWM outputs from microcontrollers. Operates at common supply voltages; sound output is realized when driven at or near the typical 2 kHz frequency. Driving method and response mirror those of small speaker transducers, allowing familiar integration and testing procedures. Typical Applications DIY electronics and maker projects using Arduino, Raspberry Pi, or other microcontrollers Alarms, timers, and notification devices where an external tone generator controls the output Educational kits and classroom experiments that demonstrate sound generation and speaker principles What is Included 50 x passive electromagnetic buzzers, each 16 ohm impedance, with the specified voltage and frequency characteristics Notes This is a passive buzzer and will not sound unless driven by an external audio signal or driver circuit.