The **MHO+73TAAD-R** belongs to a specific category of frequency control components, typically identified as a **Crystal Oscillator**. These parts are essential for providing a stable clock signal in digital circuits. --- ### 1. Technical Specifications The part number follows a specific nomenclature used by manufacturers (often MtronPTI). Below are the typical characteristics associated with this series: | Parameter | Specification | | :--- | :--- | | **Component Type** | Crystal Oscillator (XO) | | **Output Type** | HCMOS / TTL Compatible | | **Voltage Supply** | Usually 5.0V or 3.3V (Series dependent) | | **Package Style** | 14-pin DIP (Full Size) or 8-pin DIP (Half Size) | | **Stability** | Typically ±25ppm to ±100ppm | | **Operating Temp** | -40°C to +85°C (Industrial Grade) | --- ### 2. Part Number Breakdown While manufacturer codes vary slightly, the "MHO" series generally breaks down as follows: 1. **MHO**: The series prefix, indicating a Metal-can, Hermetically Sealed Oscillator. 2. **73**: Usually refers to the voltage and stability combination (e.g., 3.3V or 5V operation). 3. **T**: Indicates the output logic type (TTL/CMOS). 4. **AA**: Temperature range and stability code. 5. **D**: Duty cycle specifications (usually 40/60% or 45/55%). 6. **R**: RoHS Compliant (Lead-free). --- ### 3. Functional Pinout For a standard 14-pin DIP oscillator (where only 4 pins are actually present), the layout is usually: | Pin Number | Function | Description | | :--- | :--- | :--- | | **1** | NC or E/D | No Connection or Output Enable/Disable | | **7** | GND | Circuit Ground | | **8** | Output | The generated frequency signal | | **14** | Vcc | Positive Supply Voltage | --- ### 4. Applications The MHO+73TAAD-R is commonly found in: * **Legacy Computing:** Providing master clocks for microprocessors. * **Industrial Controls:** Stable timing for PLC (Programmable Logic Controllers). * **Networking:** Clocking for Ethernet or serial communication interfaces. * **Embedded Systems:** General-purpose digital timing. --- ### 5. Key Features * **Hermetic Seal:** The metal "can" package protects the quartz crystal from moisture and atmospheric changes, ensuring long-term frequency stability. * **Through-Hole Mounting:** The DIP (Dual In-line Package) format is designed for through-hole PCB assembly, making it robust for high-vibration environments. * **Low Phase Jitter:** Designed to minimize timing variations in high-speed digital circuits.