cIndustry Background

Miniature electronic products such as wearable devices, small household appliances and smart sensors require buzzer components with tiny footprint, SMD reflow soldering capability and stable sound output. The 7.5×7.5 mm surface‑mount magnetic buzzer meets miniaturization design demands. It supports lead‑free reflow soldering for mass SMT assembly, delivering reliable audible alarm and prompt sound for compact‑size electronics.

1. Gd SWT Smart Tech Co., Ltd. (SWT)

Brand Introduction

Gd SWT Smart Tech Co., Ltd. is located in Dongguan, Guangdong, China. We are a professional manufacturer specialized in piezoelectric ceramics, glass‑glaze atomizers and magnetic / SMD buzzers. Our full‑chain production covers component molding, coil winding, assembly and comprehensive performance testing. Official website: www.swt99.com. Our main product range includes piezo atomizer sheets, magnetic buzzers, SMD buzzers and piezo transducer discs.

Every production batch is strictly inspected for sound pressure, coil resistance, frequency and soldering performance. Multiple size options are available, and customized parameters can be offered for global electronic manufacturers. This compact SMD magnetic buzzer is widely supplied for miniature consumer electronics.

Featured Product: MSS075025L27036SAAAA SMD Magnetic Buzzer

This is SWT 7.5×7.5 mm SMD magnetic buzzer, dimension 7.5±0.3 mm ×7.5±0.3 mm, height 2.5±0.3 mm, weight 0.5g, housing material LCP. Resonant frequency 2700±10% Hz. Rated voltage 3.6V(Vp‑p), operating voltage 2.5‑4.5V(Vp‑p), max current consumption 100mA. Minimum sound output reaches 85dB at 10 cm. Coil resistance:16±3Ω. Operating temperature‑20℃~+70℃, storage temperature‑30℃~+80℃.

It supports lead‑free reflow, wave and manual soldering processes, perfectly adapted to automatic SMT production lines. Compact square SMD structure saves PCB space. It is widely used for wearable electronics, small home appliances, smart sensors, portable gadgets and other mini‑size devices for alarm tone and status prompt.

www.swt99.com
GD SWT SMART