The 0.5 W 8 Ω Speaker is a compact audio output component designed for low-power sound applications. It is commonly used with small audio amplifiers, microcontroller-based sound projects, toys, alarms, and embedded systems. With standard 8-ohm impedance and low power handling, it is ideal for clear voice prompts, beeps, and basic audio playback in space-constrained designs.
Core Speaker Specifications
• Speaker Type: Dynamic speaker
• Rated Power: 0.5 W
• Nominal Impedance: 8 Ω
• Audio Output: Mono
Electrical & Interface
• Rated Power Handling: 0.5 W
• Impedance: 8 Ω
• Connection Type: Solder terminals / wire leads
• Drive Requirement: External audio amplifier recommended
Performance Characteristics
• Clear sound at low to moderate volume
• Optimized for voice and alert tones
• Stable performance within rated power
• Sound quality depends on enclosure and amplifier
Physical Characteristics
• Speaker Frame: Metal / plastic (variant dependent)
• Cone Type: Paper / composite diaphragm
• Compact and lightweight design
• Suitable for enclosed mounting
Compatibility
• PAM8403 audio amplifier modules
• Arduino audio projects (with amplifier)
• DFPlayer Mini MP3 modules
• Bluetooth audio receiver modules
• Alarm and notification circuits
Key Advantages
• Low power consumption
• Standard 8-ohm impedance
• Easy to integrate in small devices
• Cost-effective audio solution
Technical Insights
• Do not connect directly to MCU GPIO pins
• Exceeding rated power may damage the speaker
• Proper enclosure improves sound quality
• Impedance matching improves amplifier efficiency
Applications
• Voice announcement systems
• Alarm buzzers and sounders
• Toys and educational kits
• Portable audio devices
• Embedded audio projects
Pro Tip
• Use an enclosure for better bass response
• Match amplifier output power to speaker rating
• Avoid DC offset at speaker terminals
• Use flexible wires to reduce vibration noise
Package Includes
• 1 × 0.5 W 8 Ω Speaker