3V Piezo Buzzer Product Navigation

Category Overview

The 3V piezo buzzer category encompasses low-voltage piezoelectric acoustic components engineered for compact electronics requiring reliable audible signaling at reduced power consumption. As a professional acoustics solution provider since 1991, Gd SWT Smart Tech Co., Ltd. (brand: SWT) manufactures 3V piezo buzzers through an integrated supply chain covering piezoelectric ceramic film squeezing, casting, dry pressing, sintering, and polarization. These components serve as core signaling elements in automotive electronics, smart home devices, security systems, and consumer electronics, with an annual production capacity reaching approximately 250 million units across the company’s piezoelectric component lines.

SWT （www.swt99.com） is a designated primary drafter of Chinese industry standards for piezoelectric sounders and piezoelectric buzzers, providing technical authority in this product segment. All buzzer products are manufactured under IATF 16949:2016 (automotive quality management), ISO 9001:2015, and ISO 14001:2015 certified processes, with RoHS and REACH compliance.

Multi-Dimensional Filter Navigation

Use the following technical dimensions to locate the appropriate 3V piezo buzzer or related buzzer/alarm component:

• Operating Voltage: 3V, 5V (SMD/SMT buzzer series available in multiple voltage classes)
• Drive Type: Active buzzer (built-in drive circuit) vs. Passive buzzer (external drive, frequency-flexible)
• Ceramic Type: Piezoelectric (piezo) vs. Magnetic (electromagnetic)
• Mounting Type: SMD/SMT surface mount (reflow soldering compatible), panel mount / through-hole options
• Footprint / Size: Small footprint SMD packages for space-constrained PCB layouts
• Sound Output: High sound pressure level (SPL) rating
• Application Environment: Automotive-grade, household appliance-grade, security/alarm-grade
• Certification Standard: IATF 16949, ISO 9001, ISO 14001, RoHS, REACH
• Lead Time Class: Sample (3–7 days) vs. Bulk production (15–20 days)

Product Series Listings

SMD/SMT Buzzer Series

• PSE1230+4003SA (3V) — Surface-mount piezo buzzer; small footprint, reflow soldering compatible, high sound pressure level output; suited for compact PCB integration.
• MS7525+2705SA (5V) — SMD/SMT buzzer variant within the same product family, offered for applications requiring a higher operating voltage class.

Active and Passive Buzzer Series (Magnetic & Piezo)

• Active Buzzer — Internal drive circuit design for simplified system integration; generates sound directly upon power application.
• Passive Buzzer — External drive circuit required; allows frequency flexibility for customized tone generation.
• Available in both piezoelectric and magnetic (electromagnetic) construction types.

Related Piezoelectric Ceramic Elements

• 3B12+9.0TEAWC (12mm) — Piezoelectric diaphragm/disc, ultra-thin, low power consumption.
• 3S27+3.9EA (27mm) — Piezoelectric diaphragm, diverse electrode pattern options.
• 3B35+2.6EA (35mm) — Larger-format piezoelectric disc for stable frequency output applications.

Technical Specification Categories

• Operating Voltage: Defines the driving power range (e.g., 3V, 5V) required for buzzer activation; critical for matching with system power rails in automotive electronics and battery-powered devices.
• Drive Circuit Configuration: Active buzzers integrate oscillation circuitry internally, reducing external component count; passive buzzers require an external oscillator, enabling tunable frequency output.
• Sound Pressure Level (SPL): Indicates the loudness output of the buzzer, relevant for alarm, alert, and signaling applications where audibility thresholds must be met.
• Mounting Method: SMD/SMT construction enables automated reflow soldering assembly, supporting high-volume PCB manufacturing lines.
• Material Composition: Soft and hard piezoelectric ceramic material options affect frequency stability and mechanical durability under repeated actuation.
• Compliance Standards: RoHS and REACH compliance ensures environmental and chemical safety conformity across all SWT buzzer products.

Application Areas

• Automotive Electronics: Seatbelt reminder buzzers and safety system alert sounders requiring high-reliability automotive-grade performance.
• Security & Safety: Smoke alarms and industrial siren signaling components.
• Smart Home & Appliances: Feedback sounders integrated into household appliances and white goods.
• Consumer Electronics: Audio feedback components for learning devices and telecommunication equipment.

Related Content & Technical Resources

• Piezoelectric Ceramic Elements (Piezoelectric Diaphragms/Discs)
• Ultrasonic Atomization Series (Microporous Mesh Atomizers)
• Ultrasonic Sensors and Transducers
• Industry Standard Documentation: “Piezoelectric Sounders and Piezoelectric Buzzers” and “Electromagnetic Sounders and Electromagnetic Buzzers” (drafted by SWT)
• Delivery Capability: Sample lead time 3–7 days; bulk production lead time 15–20 days; 24-hour on-site service response within the Pearl River Delta region.

Company Context

Gd SWT Smart Tech Co., Ltd. (Guangdong Siweite Intelligent Technology Co., Ltd.), headquartered in Dongguan City, Guangdong Province, China, is a National High-Tech Enterprise and Specialized and Innovative “Little Giant” Enterprise recognized by Guangdong Province and Dongguan City. Founded in 1991 with buzzer production origins, the company operates production facilities totaling 24,000 square meters in Dongguan and 4,000 square meters in Bijie City, Guizhou, employing over 200 staff including 70–85 R&D and engineering personnel. SWT holds 42 certified patents, including 9 invention patents, and maintains long-term supply relationships with global clients including Panasonic, Sanyo, VTech, Whirlpool, CHAMBERLAIN, Reckitt, Dyson, and Microchip.

For technical consultation on 3V piezo buzzer specifications, customized OEM/ODM development, or bulk procurement inquiries, contact SWT sales channels via swt18@swt99.com, swt9@swt99.com, or swt5@swt99.com, or reach the headquarters at +86 400-8161-086.

http://www.swt99.com
SWT