The **MH13FAG-R** is a specialized electronic component, typically categorized as a **High-Frequency Surface Mount (SMD) Quartz Crystal Oscillator**. It is commonly utilized in telecommunications and high-speed data networking equipment due to its stability and frequency range. ### 1. Technical Specifications The following table outlines the typical characteristics found in the MH13 series (specifically the FAG-R configuration): | Parameter | Specification (Typical) | | :--- | :--- | | **Component Type** | XO (Crystal Oscillator) | | **Output Type** | CMOS / TTL Compatible | | **Frequency Range** | 1.000 MHz to 80.000 MHz (varies by sub-code) | | **Supply Voltage (Vcc)** | 3.3V or 5.0V (Standard) | | **Package Style** | 14-pin DIP or SMD (depending on footprint) | | **Frequency Stability** | ±25ppm to ±100ppm | | **Operating Temperature** | -40°C to +85°C (Industrial Grade) | | **RoHS Status** | Compliant (indicated by -R suffix) | --- ### 2. Breakdown of the Part Number While naming conventions can vary slightly by manufacturer (often associated with brands like *Mercury Electronic*), the code usually breaks down as follows: * **MH13**: Series identifier (typically 14-pin DIP footprint compatible or specific SMD layout). * **F**: Frequency stability indicator (e.g., ±100ppm). * **A**: Operating temperature range (e.g., 0°C to 70°C or -40°C to +85°C). * **G**: Symmetry/Duty Cycle requirements (e.g., 40/60%). * **-R**: RoHS Compliant (Lead-free). --- ### 3. Key Features & Applications #### Features * **Low Phase Jitter:** Crucial for maintaining timing accuracy in high-speed digital circuits. * **Tri-state Function:** Allows the output to be placed in a high-impedance state, useful for testing or power-saving modes. * **Hermetically Sealed:** The quartz crystal is encased in a metal or ceramic package to protect against humidity and oxidation. #### Applications * **Networking:** Used in Ethernet switches, routers, and hubs. * **Embedded Systems:** Provides the "heartbeat" or clock signal for Microcontrollers (MCUs) and FPGAs. * **Industrial Control:** Reliable timing for PLCs (Programmable Logic Controllers). --- ### 4. Connection Diagram (Standard 4-Pin/14-Pin Layout) ```text Pin 1: NC (No Connection) or Tri-state Control Pin 7: Ground (GND) Pin 8: Output (Clock Signal) Pin 14: Supply Voltage (Vcc) ```