## Technical Overview: ASE04508MR-LW150-R The **ASE04508MR-LW150-R** is a high-performance miniature speaker manufactured by **PUI Audio**. It is designed for compact electronic applications requiring clear sound output in a small form factor. --- ### 1. Key Technical Specifications | Parameter | Value | | :--- | :--- | | **Impedance** | 8 Ohms | | **Rated Power** | 0.5 Watts | | **Maximum Power** | 0.8 Watts | | **Sound Pressure Level (SPL)** | 82 dB @ 0.1W/0.1M | | **Resonant Frequency (Fo)** | 450 Hz | | **Frequency Range** | 450 Hz ~ 20,000 Hz | | **Dimensions** | 45mm x 5.8mm | | **Connection Type** | 150mm Lead Wires (LW150) | --- ### 2. Component Composition This part belongs to the **Enclosed Speaker** category, meaning it features an integrated back-cavity or specialized housing. * **Magnet Material:** Typically Neodymium (NdFeB), which provides a high magnetic flux density in a lightweight package. * **Diaphragm:** Often made of Mylar (PET) for moisture resistance and durability. * **Housing:** A plastic frame (ABS or Polycarbonate) that protects the internal voice coil. * **Lead Wires:** The "LW150" suffix indicates 150mm pre-attached wires, simplifying the assembly process by eliminating the need for direct soldering to the driver terminals. --- ### 3. Application Use Cases Due to its slim profile and 8-ohm impedance, it is commonly used in: * **IoT Devices:** Smart home hubs and sensors. * **Medical Instrumentation:** Audible alerts and feedback for portable monitors. * **Industrial Panels:** Interface sounds for kiosks or control units. * **Security Systems:** Alarms and voice prompts. --- ### 4. Integration Considerations When designing an electronic circuit for this speaker, consider the following: 1. **Amplification:** Ensure your Audio Class-D or Class-AB amplifier is rated for an 8-ohm load. 2. **Protection:** Using a DC-blocking capacitor is recommended if your output has a DC offset to prevent voice coil burnout. 3. **Mounting:** Since this is a "mobile-surface" style speaker, ensure the front face is not completely obstructed to allow for proper air displacement. ---