Products

The MEIDI HND-4020 3KHz Piezo Electronic Alarm is an electronic alarm unit with a 3000±500Hz resonant frequency and 1~25Vp-p operating voltage range. Delivering Min. 89dB sound output at Max. 5mA current consumption under 3Vp-p square-wave drive, its Φ39.5mm PPO housing suits panel-mount alarm and alert applications. Contact MEIDI for datasheets and volume pricing.

The MEIDI BJ-1234 110dB Electronic Alarm Siren is an electronic alarm siren available in 12VDC, 24VDC, and 220V AC versions. Delivering Min. 110dB sound pressure at 2500Hz with NORYL housing, its Φ54×52.8mm form factor suits industrial and security alarm applications. Contact MEIDI for datasheets and volume pricing.

The MEIDI FT-35T-2.9B1-C30 is a 35mm Piezo Ceramic Buzzer Element on a brass substrate, available for volume procurement and OEM/ODM buzzer integration.Contact MEIDI for bulk pricing, free samples, or a custom configuration quote.

Resonant frequency: 2.9 ± 0.5 kHz.

Free capacitance: 30,000 / 3,300 pF ± 30% at 120 Hz.

Equivalent resistance: ≤ 500 Ω.

Dielectric loss: ≤ 5%.

Operating temperature: -20 °C to +70 °C.

Storage temperature: -30 °C to +80 °C.

Dimensions: T 0.55 ± 0.04 mm, T1 0.30 ± 0.02 mm, D1 35.0 +0/-0.1 mm, D2 25.0 ± 0.3 mm.

The MEIDI FT-27T-4.0B1-C25 is a 27mm Piezo Ceramic Buzzer Element on a brass substrate, available for volume procurement and OEM/ODM buzzer assembly.

Resonant frequency: 4.0 ± 0.5 kHz.

Free capacitance: 25,000 / 2,600 pF ± 30% at 120 Hz.

Equivalent resistance: ≤ 500 Ω.

Dielectric loss: ≤ 5%. Operating temperature: -20 °C to +70 °C.

Storage temperature: -30 °C to +80 °C.

Dimensions: T 0.44 ± 0.04 mm, T1 0.20 ± 0.02 mm, D1 27.0 +0/-0.1 mm, D2 20.0 ± 0.3 mm.

Contact MEIDI for bulk pricing, free evaluation samples, or a custom configuration quote.

The MEIDI FT-12T-8.0A1 is a 12mm Piezo Ceramic Buzzer Element with a brass substrate, engineered for high-frequency tone output in miniaturized acoustic designs. This component is available for volume procurement, OEM/ODM buzzer assembly, and long-term supply programs. Contact MEIDI to request bulk pricing, free evaluation samples, or a custom specification quote.

This 4218 Active Piezoelectric Buzzer features built-in drive circuitry, allowing for direct operation from a 3–24V DC power supply without the need for an external oscillator. Its through-hole mounting design is suitable for both wave soldering production lines and manual assembly.