## Technical Overview: AS01508AO-3-SC-R The **AS01508AO-3-SC-R** is a high-performance, miniature micro-speaker manufactured by **PUI Audio**. It is specifically designed for applications where space is limited but high-quality sound output and durability are required. --- ### 1. Key Technical Specifications The following table highlights the primary electrical and physical characteristics of the component: | Parameter | Value | | :--- | :--- | | **Manufacturer** | PUI Audio | | **Impedance** | 8 Ohms | | **Power Rating (Nominal)** | 0.8 Watts | | **Power Rating (Maximum)** | 1.0 Watt | | **Sound Pressure Level (SPL)** | 88 dB @ 0.1W / 0.1M | | **Frequency Range** | 500 Hz ~ 20,000 Hz | | **Resonant Frequency (Fo)** | 500 Hz | | **Termination** | Spring Contacts (SC) | | **Dimensions** | 15mm x 11mm x 3.5mm | --- ### 2. Physical Design and Features The "SC" in the part number stands for **Spring Contacts**, which is one of its most defining electronic features. * **Solderless Integration:** The gold-plated spring contacts allow the speaker to be pressed against pads on a PCB (Printed Circuit Board). This eliminates the need for hand-soldering or wires, reducing assembly time and potential failure points. * **Waterproof Rating:** This model features an **IP67 rating**. The "R" in the suffix typically denotes RoHS compliance, but the internal construction includes a specialized diaphragm and gasket system to prevent water and dust ingress. * **Compact Form Factor:** Its rectangular shape and low profile (3.5mm height) make it ideal for modern handheld electronics. --- ### 3. Application Use-Cases Because of its ruggedness and ease of assembly, it is commonly used in: * **IoT Devices:** Smart home sensors and hubs. * **Medical Instruments:** Portable monitors and diagnostic tools. * **Handheld Radios:** Devices requiring weather resistance. * **Wearables:** Specialized industrial wearable tech. --- ### 4. Integration Example To integrate this speaker into a circuit, a basic Class-D amplifier is usually employed to maintain efficiency. ```cpp // Pseudocode for a simple PWM-based tone generation // often used with micro-speakers in embedded systems void playAlert() { int speakerPin = 9; int frequency = 1000; // 1kHz tone within the speaker's range tone(speakerPin, frequency, 500); // Play tone for 500ms } ``` ---