The **MHO+14FGD-R** is a specific part number typically associated with **Full-Size (14-pin DIP footprint) Crystal Oscillators**. These components are fundamental in digital electronics for providing a stable clock signal. --- ### 1. Technical Specifications Based on the standard nomenclature for the MHO series, here are the primary technical characteristics: | Feature | Specification | | :--- | :--- | | **Package Type** | 14-Pin DIP (Full Size) | | **Output Type** | CMOS / TTL Compatible | | **Supply Voltage (Vcc)** | Typically +5.0V DC (Standard for MHO series) | | **Frequency Stability** | Usually ±50ppm or ±100ppm | | **Pin Count** | 4 active pins (in a 14-pin rectangular housing) | | **Operating Temperature** | 0°C to +70°C (Standard Commercial Grade) | --- ### 2. Pin Configuration Although it is housed in a 14-pin sized metal can, only four pins are physically present or functional. The standard pinout for this series is as follows: | Pin Number | Function | Description | | :--- | :--- | :--- | | **Pin 1** | NC / Standby | No Connection or Tri-state control | | **Pin 7** | GND | Circuit Ground / Case Ground | | **Pin 8** | Output | The generated square wave frequency | | **Pin 14** | Vcc | Power Supply (+5V) | --- ### 3. Part Number Breakdown The suffixing in these parts usually indicates specific tolerances or packaging: * **MHO:** Series designation (Metal Hybrid Oscillator). * **14:** Refers to the "14-pin" physical footprint (Full size). * **F:** Often denotes frequency stability or specific voltage (Verify against manufacturer datasheet as this can vary). * **GD:** Usually refers to a specific frequency stability grade (e.g., ±50ppm). * **R:** Generally indicates **RoHS Compliance** (Lead-free). --- ### 4. Common Applications These oscillators are "active" components, meaning they contain the quartz crystal and the oscillation circuitry (capacitors/transistors) inside the metal shielding. Common uses include: * **Microprocessor Clocks:** Providing the heartbeat for CPUs. * **Networking Equipment:** Timing for Ethernet controllers. * **Legacy Hardware:** Found frequently in older industrial PC boards and telecommunications gear. ---