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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-35T-2.9B1-C30 is a 35mm Piezo Ceramic Buzzer Element built on a brass substrate. It delivers a stable resonant frequency of 2.9 kHz and high capacitance, making it a reliable acoustic driver for buzzers, alarms, and tone generators. This component is suitable for volume procurement, OEM/ODM integration, and long‑term supply agreements. MEIDI, as a manufacturer with over a decade of specialized experience, supports consistent batch quality and flexible delivery schedules.
Resonant frequency: 2.9 ± 0.5 kHz per specification
Free capacitance: 30,000 / 3,300 pF ± 30% at 120 Hz per specification
Dimensions: 35.0 mm outer diameter, 0.55 mm total thickness per specification
Brass substrate for robust acoustic coupling
Operating temperature: -20 °C to +70 °C per specification
| Parameter | Value | Unit |
| Product Type | Piezoelectric Ceramic Element | — |
| Resonant Frequency | 2.9 ± 0.5 | kHz |
| Free Capacitance | 30,000 / 3,300 ± 30% | pF (at 120 Hz) |
| Equivalent Resistance | ≤ 500 | Ω |
| Dielectric Loss (tanδ) | ≤ 5% | — |
| Operating Temperature | -20 ~ +70 | °C |
| Storage Temperature | -30 ~ +80 | °C |
| Substrate Material | Brass | — |
| Total Thickness (T) | 0.55 ± 0.04 | mm |
| Ceramic Thickness (T1) | 0.30 ± 0.02 | mm |
| Outer Diameter (D1) | 35.0 +0 / -0.1 | mm |
| Inner Diameter (D2) | 25.0 ± 0.3 | mm |
Industrial alarm panels and safety warning systems
Automotive audible indicators (reversing alarms, seatbelt reminders)
Medical device alert tones (patient monitors, portable diagnostic tools)
Smart home sensors and IoT security hubs
Consumer electronics requiring compact, high‑output acoustic signals
1. Do not apply voltage beyond the specified operating range of the FT-35T-2.9B1-C30. Excessive drive may cause ceramic degradation or delamination.
2. Handle with care to avoid mechanical shock or bending that could crack the ceramic layer or separate the brass substrate.
3. Avoid prolonged exposure to corrosive atmospheres, high humidity, or condensation, which may oxidize the brass substrate and degrade electrode adhesion.
4. Store in original desiccated packaging to prevent moisture ingress and maintain solderability.
5. Mounting support should be applied only at the substrate perimeter. Do not restrict the central vibrating region, as this will alter the resonant frequency and sound pressure level.
MEIDI produces 35mm Piezo Ceramic Buzzer Elements in an ISO 9001‑certified facility with dedicated automated lines for ceramic firing, electrode printing, polarization, and final acoustic testing. Each batch of the FT-35T-2.9B1-C30 undergoes resonance frequency sweep, capacitance verification, and visual inspection. With an established supply chain and full in‑house control, we maintain repeatable performance and support mid‑ to large‑volume deliveries.
A: Yes, bulk orders are welcome. Standard lead time is 2‑4 weeks depending on quantity. For larger volumes or urgent demands, please contact our sales team for a confirmed schedule.
A: We provide free samples of this 35mm piezo element to qualified buyers. Shipping costs may apply based on destination. Sample requests can be placed directly through the inquiry form.
A: Customization of resonant frequency, capacitance, substrate thickness, and wire termination is available. Our R&D team works closely with customers to adjust parameters within feasible ranges while maintaining reliability.
A: MEIDI operates under ISO 9001 quality management. We can provide material certificates, test reports, and RoHS/REACH compliance statements upon request.
A: Elements are packed in anti‑static trays and vacuum‑sealed bags with desiccant. Outer cartons are reinforced to prevent damage during transit. Custom labeling and barcoding are supported for high‑volume orders.
To request the full datasheet, discuss configuration options, or obtain a quotation for the FT-35T-2.9B1-C30 35mm piezoelectric ceramic element, contact MEIDI with your technical requirements or target application. Our engineering support team will respond with detailed recommendations within one business day.
Address
No.6, Wenlin Road, Chenbao Town, Xinghua City, Jiangsu Province, China
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