Adjustable Magnetic Passive Buzzer For Signal Applications

MEIDI KC2512 25mm Electromagnetic Passive Buzzer — a 25 mm electromagnetic passive buzzer available in two coil configurations: the KC2512-30R variant rated at 5Vo-p with 30Ω coil resistance, and the KC2512-120R variant rated at 12Vo-p with 120Ω coil resistance. Both variants share an 800Hz resonant frequency, PBT housing, and -20℃ to +70℃ operating temperature. Requires external square wave drive for tone generation. Contact MEIDI for evaluation samples or volume pricing.

MEIDI HN-1614 16mm 2048Hz Through-Hole Electromagnetic Passive Buzzer — a 16 mm through-hole electromagnetic passive buzzer with 6Vo-p rated voltage, 4–8Vo-p operating range, 2048Hz resonant frequency, 45±5Ω coil resistance, Max. 40mA rated current, and Min. 85dB sound pressure at 10cm. Black Noryl housing, -20℃ to +70℃ operating temperature, RoHS compliant. Requires external square wave drive at resonant frequency for tone generation. Request evaluation samples or submit an RFQ for volume pricing.

MEIDI HN-1295 12mm 2400Hz Through-Hole Electromagnetic Passive Buzzer — a 12 mm through-hole electromagnetic passive buzzer with 5Vo-p rated voltage, 3–7Vo-p operating range, 2400Hz resonant frequency, 42±5Ω coil resistance, Max. 80mA rated current, and Min. 85dB sound pressure at 10cm. Black PPO housing, -20℃ to +70℃ operating temperature, RoHS compliant. Requires external square wave drive at resonant frequency for tone generation. Request evaluation samples or submit an RFQ for volume pricing.

MEIDI HN-1260B 12mm 2730Hz Through-Hole Electromagnetic Passive Buzzer — a 12 mm through-hole electromagnetic passive buzzer with 3Vo-p rated voltage, 2–4Vo-p operating range, 2730Hz resonant frequency, 16±4Ω coil resistance, Max. 60mA current, and Min. 85dB sound pressure at 10cm. Black PPO housing, -20℃ to +70℃ operating temperature, RoHS compliant. Requires external square wave drive at resonant frequency for tone generation in industrial control panels, alarm modules, and legacy equipment designs. Request evaluation samples or submit an RFQ for volume pricing.

The MEIDI 9*5.5mm Magnetic Passive Buzzer series offers a range of impedance and frequency specifications. QMB-09B-03 (16Ω, 3V, 2.7kHz) for 3.3V logic direct drive; QMB-09B-05 (42Ω, 5V, 2.7kHz) for 5V industrial buses; QMB-09B-05 4KHZ (42Ω, 5V, 4.0kHz) for high-frequency tonal clarity. All variants share identical 9.0 mm footprint and black PBT housing, enabling single PCB layout across multiple voltage architectures. Request evaluation samples or submit an RFQ today. Volume pricing and custom lead forming available.

MEIDI 9*4.2mm Magnetic Passive Buzzer line offers three through-hole electromagnetic units in a shared 9.0 × 5.5 mm form factor, with choices of impedance and frequency. The QMB-09B-03 runs at 16 Ω / 3V / 2.7 kHz for direct 3.3V logic drive. The QMB-09B-05 uses 42 Ω / 5V / 2.7 kHz for 5V industrial bus systems. The QMB-09B-05 4KHZ variant keeps the same 42 Ω / 5V rating but shifts to 4.0 kHz for a sharper, higher-pitched alert. All three fit an identical 9.0 mm PCB footprint with a black PBT housing, so one layout works across multiple voltage designs. Ask for evaluation samples or send an RFQ today. Volume pricing and custom lead forming are available.