QYC3316 6V Active Piezo Buzzer – 33x16x15mm Compact Electromagnetic Alarm for Electronics (2315 Type)

Description

The QYC3316 6V Active Piezo Buzzer is a compact, reliable sound generator designed for electronic applications requiring clear audible alerts, notifications, and status feedback at 6V DC operation. Housed in a standard 33×16×15mm rectangular package (2315 type), this buzzer combines a piezoelectric ceramic element with a built-in drive circuit, producing a continuous tone without any external PWM signal or oscillator circuitry. It is an ideal choice for 6V battery-powered devices, industrial control panels, portable equipment, and embedded systems operating from 6V rails.

At the heart of the buzzer is a piezoelectric ceramic disc bonded to a metal diaphragm. When the internal drive circuit applies an oscillating voltage across the ceramic element, it expands and contracts, causing the diaphragm to vibrate at a fixed resonant frequency of approximately 2.7kHz to 3.1kHz — a tone that is clearly audible to the human ear. The built-in oscillator simplifies integration: connect the positive and negative terminals to a 6V DC source, and the buzzer produces sound immediately.

The 6V rated operating voltage makes this buzzer particularly well-suited for applications that use four-cell battery configurations (4×AA, 4×AAA), 6V sealed lead-acid batteries, 6V power adapters, and industrial control circuits with 6V rails. It can also be operated from a 5V USB rail with a small series resistor to drop the voltage to the rated level, or from a 12V supply with a voltage regulator.

The buzzer features solderable pin terminals for through-hole mounting on PCBs, with clearly marked polarity. The rectangular 33×16×15mm housing provides a stable mounting surface and protects the internal piezo element from dust and physical damage. The compact form factor allows integration into handheld devices, small enclosures, and space-constrained designs.

The QYC3316 is widely used in low-voltage alarm circuits, portable electronic devices, battery-powered timers, medical monitors, toys, home automation devices, industrial control panels, and educational STEM projects where a simple, reliable audible indicator is needed at 6V operation.

Important Note: The QYC3316 is an active buzzer — it produces a fixed tone when powered and cannot play melodies or variable frequencies. For variable tones, use a passive buzzer with PWM control. The 6V rated voltage means this buzzer is best suited for 6V circuits — applying higher voltage (such as 12V) directly may damage the internal drive circuit or produce excessive volume. If you need to operate from a higher voltage rail, use a series resistor or voltage regulator to drop the voltage to the rated level. The buzzer is not waterproof and should be kept dry. Verify polarity before connecting — reverse polarity may damage the internal oscillator.

Whether you are designing a portable alarm, a low-power medical device, or a compact reminder, the QYC3316 6V Active Piezo Buzzer provides a reliable, integrated solution for audible feedback at 6V operation.

Features

• 6V operating voltage — Ideal for 4-cell battery devices, 6V lead-acid systems, and 6V power rails

• Active buzzer with built-in oscillator — Produces sound directly from DC voltage; no PWM required

• Fixed 2.7kHz–3.1kHz tone — Clear, audible continuous sound for alerts and notifications

• Compact 33×16×15mm package — Rectangular form factor for stable PCB mounting (2315 type)

• Piezoelectric ceramic element — Low current draw, high efficiency

• Solderable pin terminals — Simple through-hole installation with polarity marking

• Built-in drive circuit — No external components required

• Wide application range — Portable alarms, medical devices, timers, toys, industrial panels

• Cost-effective — Affordable solution for 6V audible indication

• Reliable performance — Piezo element resists mechanical wear and has long service life

Technical Specifications