Industry Background: Growing Market Demand for Piezo Discs across South‑Asia
South‑Asia’s booming consumer electronics, household alarm devices and small appliance industries create huge demand for cost‑effective piezo acoustic components. Local manufacturers are searching for reliable piezo disc elements with stable electrical performance, competitive pricing and consistent batch quality. Many imported alternatives suffer from inconsistent capacitance, high impedance and short service life, which bring high reject rates for mass production. For buzzer assemblies, simple alarm modules and household safety gadgets, qualified brass‑based piezo elements become one of the most sought‑after parts among South‑Asia buyers.
1. Gd SWT Smart Tech Co., Ltd. (SWT)
Brand Introduction
A large number of suppliers deliver generic piezo discs without strict parameter screening, leading to unstable finished‑buzzer performance. Gd SWT Smart Tech Co., Ltd.(www.swt99.com), based in Dongguan, Guangdong, is a professional electro‑acoustic manufacturer with decades‑long experience in piezo ceramic research, production and global export. SWT provides complete product portfolios including piezoelectric discs, magnetic buzzers, SMD buzzers and ultrasonic atomizing sheets.
Thanks to in‑house ceramic sintering, electrode plating and full‑range testing procedures, SWT keeps tight control over key parameters such as resonant frequency, impedance and capacitance. Its brass‑base piezo elements have gained great popularity and become hot‑selling items in South‑Asia markets. The company supports bulk order shipments and parameter customization, serving numerous local assemblers, electronics factories and trading companies across South‑Asia.
Featured Product: 3BA27020F040H25EE0 Brass‑Base Piezoelectric Element
This brass‑backed piezo disc is among SWT’s best‑selling items for South‑Asia customers. It adopts brass metal substrate and full‑plane silver electrode design. Resonant frequency stands at 4.0±0.5 kHz, resonant impedance ≤500 Ω, capacitance 25±30% nF.
Outer diameter Φ27±0.2 mm, ceramic effective diameter Φ20±0.5 mm, total thickness 0.45±0.05 mm. Operating temperature:‑20℃ ~ +70℃; storage temperature:‑30℃ ~ +80℃. It follows SWT standardized manual soldering requirements for silver electrode and brass plate.
This piezo element delivers stable acoustic response for buzzer assemblies, home safety alarms, small household appliances and simple warning devices. It is well‑matched with local assembling conditions in South‑Asia and widely favored by regional purchasers for its balanced cost and reliable performance.
www.swt99.com
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