Products

The MEIDI MLT-8530H Series includes two electromagnetic passive buzzers built on the same 8.5 × 8.5 × 3.0 mm platform. The 16R variant runs at 16 Ω / 3.6V rated, and the 32R at 32 Ω / 5V rated — only coil impedance and voltage differ, so teams can test drive schemes without reworking the PCB. Both need an external AC drive near 2700 Hz to sound, giving firmware control over tone and patterns. Each 8.5*8.5*3mm SMD Magnetic Passive Buzzer delivers ≥85 dB at its rated voltage. At 0.5 g with an LCP housing, they support up to three reflow passes for smooth assembly workflows. A practical choice for volume orders in space-limited audio designs, contact MEIDI applications engineering for impedance selection or pricing details.

MEIDI 5*3mm SMD Magnetic Passive Buzzer — a 12Ω 3V SMD electromagnetic passive buzzer with 3.0 mm extended cavity in a 5.0×5.0 mm footprint, delivering ≥80 dB at 4 kHz. Extended cavity design for acoustic output in industrial and outdoor environments. Request a quote or order free samples today. OEM customization and bulk pricing available.

The MEIDI 5*5*2mm Surface Mount Magnetic Passive Buzzer is a 12Ω 3V SMD passive electromagnetic buzzer with a central aperture acoustic design. Measuring only 5.0 × 5.0 × 2.0 mm, it delivers a sound pressure level (SPL) of ≥80 dB at 4 kHz. Its symmetrical acoustic emission design ensures uniform SPL distribution in handheld devices, wearables, and industrial applications. Request a quote now or order a free sample. OEM customization and bulk pricing are available.

MEIDI 9650 Electromagnetic Active Buzzers feature a built-in oscillator across three voltage options: 3V, 5V, and 12V, covering a 1.5–16V operating range. Apply DC power to generate a steady 2700 ± 300 Hz tone, delivering ≥85 dB at 10 cm while drawing ≤30 mA. Built with through-hole polarized pins and a black PBT housing, they operate reliably from -20 to +70 °C and fit standard manufacturing assembly lines. Well-suited for industrial alarm systems and audio alert applications, these buzzers support efficient bulk sourcing for ongoing production needs. Contact MEIDI to request samples.

MEIDI 9042 Electromagnetic Active Buzzer comes with a built-in oscillator in three variants: 3V, 5V, and 12V, covering a 1.5–16V operating range. DC input generates a steady 2700 ± 300 Hz tone, reaching ≥85 dB at 10 cm while drawing ≤30 mA. Measuring only 9.0 × 4.2 mm and weighing 0.71 g, this compact through-hole unit has a black PBT housing and operates from -20 to +70 °C. Tailored for portable electronics, it integrates cleanly into high-volume production lines. A solid option for procurement in battery-powered devices, reach out to MEIDI for full specifications or order inquiries.

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.