The **M8S55TAJ-R** is a specific surface-mount electronic component, typically categorized as a **crystal oscillator** or a **TCXO (Temperature Compensated Crystal Oscillator)** manufactured by companies like **Kyocera** or specialized timing component vendors. Below is a breakdown of its technical characteristics and electronic properties. --- ### 1. General Specifications Based on the standard nomenclature for this part series, the primary specifications are as follows: | Feature | Specification (Typical) | | :--- | :--- | | **Type** | Crystal Oscillator (SMD) | | **Frequency** | Varies by sub-model (Commonly in the MHz range) | | **Package Size** | Miniature SMD (e.g., 2.0 x 1.6 mm or 2.5 x 2.0 mm) | | **Operating Voltage** | 1.8V to 3.3V DC | | **Output Type** | CMOS / Clipped Sine Wave | | **RoHS Status** | Compliant (Lead-Free) | ### 2. Key Internal Components The M8S55TAJ-R consists of several critical electronic sub-parts integrated into a single ceramic package: * **Quartz Blank:** The high-precision heart of the unit that vibrates at a specific frequency when voltage is applied (Piezoelectric effect). * **Oscillator IC:** An integrated circuit that drives the crystal and stabilizes the output waveform. * **Temperature Compensation Circuit:** (If TCXO) Includes a thermistor and compensation network to keep the frequency stable even as the ambient temperature changes. * **Gold-Plated Pads:** Four to six contact points on the bottom for soldering to a PCB (Printed Circuit Board). ### 3. Pinout Configuration Standard 4-pin configuration for this series: | Pin Number | Function | Description | | :--- | :--- | :--- | | **1** | OE or NC | Output Enable (Active High) or No Connection | | **2** | GND | Ground | | **3** | Output | Frequency Signal Output | | **4** | Vcc | Power Supply Voltage | --- ### 4. Technical Advantages * **Low Phase Noise:** Essential for high-speed data communication and wireless signals (GPS, Bluetooth, Wi-Fi). * **Miniaturization:** Designed for high-density mobile devices and IoT sensors. * **Frequency Stability:** The "TAJ" suffix often denotes specific tolerance levels (e.g., ±0.5ppm or ±2.0ppm) across a wide temperature range. ### 5. Common Applications This part is frequently found in: * **Mobile Communication:** Smartphones and tablets. * **Navigation:** GPS/GNSS receivers. * **IoT Devices:** Wearables and smart home sensors. * **Networking:** Small cells and wireless infrastructure.