16mm Through‑Hole Magnetic Buzzer: Robust Pin‑Type Acoustic Alarm Component for General‑Purpose Electronic Equipment

Industry Background

Through‑hole magnetic buzzers still occupy a large market share in traditional household appliances, industrial control devices, security alarm systems and various civil electronic equipment. Compared with SMD surface‑mount buzzers, pin‑insert through‑hole buzzers feature firm PCB insertion connection, strong mechanical shock resistance and easy manual welding, which are well‑suited for products assembled by wave‑soldering or manual assembly processes.

Many general‑purpose electronic devices require buzzers with moderate power consumption, stable loud sound output and mature‑proven structure. This 16 mm diameter pin‑type magnetic buzzer meets such mainstream market requirements. It adopts PBT housing material with good mechanical strength and anti‑aging performance. Under normal working conditions, it can output stable alarm and prompt tones for long‑term continuous operation. It is widely used in household electrical appliances, security detectors, instrument panels, small industrial controllers and many other terminal products.

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

Brand Introduction

Gd SWT Smart Tech Co., Ltd., located in Dongguan, Guangdong Province, is a comprehensive manufacturer dedicated to piezoelectric ceramic elements and acoustic buzzer products. The company’s product range covers glass‑glaze piezo atomizers, piezo transducer discs, diverse SMD magnetic buzzers and multiple‑specification through‑hole pin‑type magnetic buzzers.

SWT implements full‑process in‑house production, including mold design and manufacturing, coil winding, PBT plastic housing injection molding, component assembly and comprehensive performance reliability testing. Every production batch undergoes strict quality control procedures, including sound‑output testing, resonant‑frequency inspection, current consumption verification, high‑low temperature cycling test and welding‑reliability assessment.

Apart from standard stock models, SWT provides customized development services for global customers. According to customer project requirements, parameters such as rated voltage, resonant frequency, sound‑output level and pin dimension can be adjusted. Thanks to stable product performance and competitive cost‑performance ratio, SWT’s buzzer series has won wide trust from overseas purchasers across Southeast Asia and other regions.

Featured Product: MBD160140B20050PAAAA Through‑Hole Magnetic Buzzer

This is SWT’s 16 mm through‑hole magnetic buzzer. Outer diameter is Φ16±0.5 mm, overall height 14±0.5 mm. The housing is made of high‑strength PBT material, with total product weight of 2.0 g. Two vertical through‑hole pins are designed for PCB plug‑in mounting.

Key electrical and acoustic specifications: Rated voltage 5VDC; operating voltage ranges from 3VDC‑7VDC; maximum current consumption 30 mA; minimum sound output reaches 80dB at 10 centimeters; resonant frequency 2048±10% Hz. Operating temperature ranges from‑20℃ ~ +70℃, storage temperature‑30℃ ~ +80℃, adapting to most civil and general‑industrial working‑environment conditions.

In terms of soldering adaptability, this buzzer supports reflow soldering, wave soldering and manual soldering. It can satisfy diverse mass‑production assembly demands. The buzzer shell is printed with reminder marks “REMOVE SEAL AFTER WASHING”, reminding operators to remove protective seal after circuit‑board washing procedure to guarantee normal sound‑output performance.

Benefiting from sturdy pin‑type through‑hole structure, it delivers reliable mechanical connection after inserting into PCB boards, resisting vibration and impact. This buzzer is extensively applied in household appliances, security alarm devices, measuring instruments, general‑purpose industrial control modules and other electronic equipment, realizing fault warning, status notification and operation‑prompt sound‑signal output.