This active buzzer module is designed for reliable and easy integration into electronic projects requiring audio alerts or notifications. Driven by the S8550 transistor, it operates within a voltage range of 3.3V to 5V, making it compatible with both 3.3V and 5V microcontrollers. The module features a fixed bolt hole for secure installation and a compact PCB design, ensuring minimal space usage in embedded applications. Its 3-wire interface allows straightforward connection to microcontroller I/O ports, with the buzzer activating when a low-level signal is applied.

Key Features:

• Low-level trigger operation for simple control.
• S8550 transistor driver for stable performance.
• Wide voltage compatibility (3.3V–5V) for various MCU systems.
• Fixed bolt hole for secure mounting.
• Compact size for space-limited designs.

Technical Specifications:

• Driver: S8550 transistor
• Operating Voltage: 3.3V–5V DC
• Activation Signal: Low-level trigger
• PCB Dimensions: 32.3 × 13.1 mm
• Interface: 3-wire system
  • VCC: 3.3V–5V input
  • GND: Ground connection
  • I/O: Microcontroller I/O port input