The **ASX02108-R** is a micro-sized, high-fidelity dynamic speaker manufactured by **PUI Audio**. It is specifically designed for applications where space is at a premium but high-quality audio output is still required. --- ## 1. Core Technical Specifications The following table summarizes the primary electronic and physical characteristics of the component: | Parameter | Specification | | :--- | :--- | | **Transducer Type** | Dynamic (Moving Coil) | | **Impedance** | 8 Ohms ± 15% | | **Power Rating (Rated/Max)** | 0.7W / 1.0W | | **Frequency Range** | 500 Hz ~ 20,000 Hz | | **Sound Pressure Level (SPL)** | 82 dB ± 3dB @ 0.1W/0.1M | | **Resonant Frequency (Fo)** | 500 Hz ± 20% | | **Magnet Material** | NdFeB (Neodymium) | | **Weight** | ~1.5 Grams | --- ## 2. Key Electronic Components & Materials The ASX02108-R utilizes high-grade materials to achieve its performance profile: * **Neodymium (NdFeB) Magnet:** High-strength magnetic material allows for a high sensitivity-to-size ratio, providing strong motor force despite the tiny footprint. * **PET Diaphragm:** The use of a Polyethylene Terephthalate (PET) cone ensures durability and moisture resistance while remaining light enough for rapid transient response. * **Contact Type:** This specific model typically features **Solder Pads** for secure electrical connection to a PCB or wire harness. --- ## 3. Implementation and Use Cases ### Integration Considerations * **Enclosure Design:** To achieve the rated 500Hz low-frequency response, the speaker must be mounted in a properly sealed or ported enclosure to prevent acoustic "short-circuiting" (where front and back waves cancel each other out). * **Driving Circuit:** Since it is an 8-ohm speaker, it can be driven by standard Class-D or Class-AB audio amplifiers common in mobile electronics. ### Common Applications 1. **Handheld Devices:** Smartwatches, scanners, and GPS units. 2. **Medical Instrumentation:** Audible alerts and feedback for portable monitors. 3. **IoT Hardware:** Voice prompts for smart home hubs or security sensors. --- ## 4. Typical Frequency Response Curve While exact curves depend on the enclosure, the ASX02108-R is tuned for **speech intelligibility**. Its output is strongest in the **1kHz to 5kHz range**, which is the critical spectrum for human voice recognition. ---