12mm Long‑pin Piezoelectric Buzzer, 4.0±0.5KHz 5Vp‑p

Industry Background: Demands for Long‑pin Piezo Buzzer

In many PCB assembly and through‑hole mounting applications, buzzer pins need to provide sufficient insertion length for stable soldering, easy board penetration and reliable connection. Ordinary short‑pin buzzers may cause inconvenient assembly, poor soldering contact or unstable fixing during mass production. Therefore, long‑pin piezoelectric buzzers are widely preferred for projects that require manual insertion, wave soldering or secondary fixing on the circuit board. This 12mm long‑pin piezoelectric buzzer is a compact through‑hole product from Guangdong SWT, featuring clearly longer pins, stable acoustic performance and convenient PCB installation.

About Guangdong SWT

Guangdong SWT is a professional manufacturer specialized in piezoelectric ceramics and electro‑acoustic components. We operate a complete in‑house production chain covering ceramic sintering, mould development, product assembly and finished‑product testing. Our product portfolio includes piezoelectric buzzers, electromagnetic buzzers, SMD buzzers, piezoelectric ceramic discs and ultrasonic atomization elements. Every production batch undergoes strict testing of acoustic performance, electrical indicators and visual appearance before shipment, ensuring consistent quality for OEM and ODM bulk orders. You can visit our official website www.swt99.com to browse product catalogues, download full datasheets and submit sample requests.

Core Electrical and Acoustic Specifications

This 12mm long‑pin piezoelectric buzzer has a resonant frequency of 4.0±0.5KHz, rated peak‑to‑peak voltage of 5Vp‑p, and an operating voltage range of 1‑25V(Vp‑p). Its maximum current consumption is 3mA, which helps reduce power consumption for low‑power electronic systems. Under standard test conditions of 5Vp‑p, 1/2 duty square wave at 4.0KHz, the minimum sound output reaches 80dB when measured at 10cm distance, providing clear audible alerts for compact equipment. The capacitance value tested at 120Hz is 14±30%nF. All parameters are verified under standard test environment: temperature 25±1℃, humidity 45%‑75%, air pressure 86‑106kPa.

Structural Features & Environmental Performance

One of the most prominent features of this buzzer is its long pin design, which provides enough length for convenient PCB insertion, reliable soldering and stable board connection. The buzzer has an outer diameter of φ12±0.5mm and a total height of 6.5±0.5mm. The long pins help improve assembly flexibility, especially for through‑hole installation, wave soldering and projects requiring extra soldering space. The housing material is PBT, and the product weight is only 0.7g. For environmental performance, operating temperature ranges from ‑20℃ to +70℃, while storage temperature ranges from ‑30℃ to +80℃. The specification also provides complete lead‑free soldering parameters for reflow soldering, wave soldering and manual soldering.

Wide Application & Procurement Support

This 12mm long‑pin piezoelectric buzzer is suitable for compact electronic products, PCB through‑hole assembly, small household appliances, control panels, alarm modules and other devices requiring easy insertion and stable soldering. It supports both small‑batch sample evaluation and large‑volume bulk procurement. Backed by stable production capacity, strict quality control and factory‑direct pricing, this long‑pin buzzer is a practical choice for global electronic purchasers who need reliable through‑hole mounting performance. For more technical documents, sample support and quotation information, please visit our official website www.swt99.com.