HCM1205APB

RYD HCM1205APB is a Mid-Frequency Passive Electromagnetic Buzzer measuring Φ12×9mm, requiring external 2400Hz square-wave drive to achieve 85dB SPL. NORYL housing with red copper leads offers thermal stability and reliable solderability. Coil rated for 5V nominal drive; acceptable drive amplitude range is 3–8Vp-p. The 2400Hz resonant frequency targets a region of high human auditory sensitivity, maximizing perceived loudness per unit of electrical input. Suited to smart home hubs, consumer electronics, and industrial HMI panels where balanced audibility and power efficiency are design priorities. Customization available: waterproof/dustproof rating enhancement and lead wire options.