Products

MEIDI HN-9050 9x5mm Through-Hole Electromagnetic Passive Buzzer is a through-hole electromagnetic passive buzzer built for OEM and industrial applications that require stable acoustic output with an external drive signal. Rated at 3Vo-p with a 2700Hz resonant frequency and 16Ω coil impedance, the HN-9050 delivers Min. 85dB sound pressure at 10cm and operates across a 3–7Vo-p range. The black PPO housing supports standard hand and wave soldering, making it suitable for control panels, alarm modules, and equipment status indication.

MEIDI HN-9045F — a 9x4.5mm SMD Electromagnetic Passive Buzzer rated at 3Vo-p with 16Ω coil resistance and 2700Hz resonant frequency. This variant features a 4.5 mm height profile within the 9mm SMD buzzer category, with black Noryl housing. Min. 85dB sound pressure under rated drive. 2–4Vo-p operating range, -20℃ to +70℃ rated. Requires external square wave excitation. Contact MEIDI for samples or volume pricing.

MEIDI HN-9042W — a 9 mm × 4.2 mm 9x4.2mm SMD Electromagnetic Passive Buzzer rated at 3Vo-p with 16Ω coil resistance and 2730Hz resonant frequency. Designed for 3.3V logic rail integration, this buzzer achieves Min. 85dB sound pressure at 10cm under rated drive conditions. Black LCP housing, 2–4Vo-p operating range, -20℃ to +70℃ rated. Requires external square wave excitation. Submit RFQ or request evaluation units from MEIDI.

MEIDI HN-9040 — a 9 mm × 4 mm 9x4mm SMD Electromagnetic Passive Buzzer rated at 5Vo-p with 40Ω coil resistance and 2730Hz resonant frequency. This SMD buzzer delivers Min. 83dB sound pressure at 10cm under rated drive conditions. Black Noryl housing, 3–8Vo-p operating range, -20℃ to +70℃ rated. Requires external square wave drive. Contact MEIDI for volume pricing or samples.

MEIDI HN-6535 — a compact 6.5 mm × 3.5 mm 6.5x3.5mm SMD Electromagnetic Passive Buzzer rated at 3Vo-p with 16Ω coil resistance and 2731Hz resonant frequency. Designed for space-constrained PCB assemblies, this buzzer delivers Min. 70dB sound pressure at 10cm when driven with a 50% duty cycle square wave. Black Noryl housing, -20℃ to +70℃ operating temperature, RoHS compliant. Requires external drive signal for tone generation. Submit RFQ or request samples for evaluation.

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.