The **AS03608MR-4-R** is a high-quality miniature speaker manufactured by **PUI Audio, Inc.** It is designed for compact electronic devices requiring clear sound output in a small form factor. --- ## 1. Technical Specifications The following table outlines the core electrical and physical characteristics of the component: | Characteristic | Specification | | :--- | :--- | | **Type** | Dynamic Speaker (Moving Coil) | | **Impedance** | 4 Ohms (±15%) | | **Power Rating (Nominal)** | 0.8 Watts | | **Power Rating (Maximum)** | 1.0 Watt | | **Sound Pressure Level (SPL)** | 82 dB ± 3dB @ 0.8W/0.1M | | **Resonant Frequency (Fo)** | 550 Hz ± 20% | | **Frequency Range** | 550 Hz ~ 20,000 Hz | | **Magnet Material** | NdFeB (Neodymium) | | **Weight** | ~6.1 Grams | --- ## 2. Key Features and Construction The AS03608MR-4-R is engineered for durability and performance in space-constrained environments: * **Neodymium Magnet:** Utilizes a rare-earth Neodymium (NdFeB) magnet, which provides a high magnetic flux density, allowing the speaker to be smaller and lighter while maintaining high sensitivity. * **Mylar Cone:** The diaphragm is typically made of Mylar (polyester film), making it resistant to moisture and environmental humidity compared to paper-cone speakers. * **Square Frame:** The 36mm x 36mm square profile includes mounting holes for easy mechanical integration into enclosures. * **Low Profile:** With a depth of only approximately 5.3mm, it is ideal for "slim" electronic designs. --- ## 3. Applications This speaker is commonly found in the following types of hardware: * **Handheld Devices:** GPS units, scanners, and portable radios. * **Industrial Panels:** Audible alarms and user interface feedback (beeps/voice prompts). * **IoT Devices:** Smart home hubs and security panels. * **Medical Instrumentation:** Monitoring equipment requiring audible alerts. --- ## 4. Typical Wiring Diagram The speaker is a passive component. It requires an audio amplifier circuit to drive it. ```mermaid graph LR A[Audio Source/MCU] --> B[Audio Amplifier IC] B --> C[+ Positive Terminal] B --> D[- Negative Terminal] subgraph Speaker_AS03608MR C D end ``` ---